Q.1 What is the primary function of a wheelchair in rehabilitation engineering?
To provide entertainment
To assist mobility
To measure heart rate
To measure temperature
Explanation - A wheelchair is designed to help individuals with limited mobility move around independently.
Correct answer is: To assist mobility
Q.2 Which body part is most commonly affected by spinal cord injury?
Knee joint
Spine
Hand
Foot
Explanation - Spinal cord injuries occur within the spinal column, leading to loss of function below the injury site.
Correct answer is: Spine
Q.3 Which type of assistive device uses sensors to detect foot movement and adjust the gait cycle?
Powered exoskeleton
Hearing aid
Cane
Orthotic shoe
Explanation - Powered exoskeletons incorporate sensors that detect foot pressure and movement, enabling coordinated assistance.
Correct answer is: Powered exoskeleton
Q.4 In biomechanics, what does the term ‘torque’ refer to?
Speed of an object
Force applied at a distance from a pivot
Mass of a body
Angle of rotation
Explanation - Torque is the rotational equivalent of linear force, calculated as force times the lever arm distance.
Correct answer is: Force applied at a distance from a pivot
Q.5 Which material is commonly used for lightweight, strong exoskeleton frames?
Lead
Aluminum
Steel
Wood
Explanation - Aluminum offers a good balance between strength and weight, making it suitable for wearable exoskeletons.
Correct answer is: Aluminum
Q.6 What is the purpose of an adaptive computer mouse in assistive technology?
To increase game speed
To allow control using alternative input methods
To improve graphic design
To measure temperature
Explanation - Adaptive mice help users with limited hand function by providing alternative ways to interact with a computer.
Correct answer is: To allow control using alternative input methods
Q.7 In gait analysis, the ‘double support phase’ refers to:
Both feet on the ground simultaneously
Only one foot on the ground
The period of running
The period when the foot is in the air
Explanation - During double support, both feet are in contact with the ground, providing stability.
Correct answer is: Both feet on the ground simultaneously
Q.8 Which sensor is commonly used in prosthetic hands to detect user intent?
Accelerometer
Pressure sensor
Heart rate monitor
Temperature sensor
Explanation - Pressure sensors in the prosthetic hand detect the force applied, allowing the device to respond to user intent.
Correct answer is: Pressure sensor
Q.9 The term 'orthosis' refers to:
A surgical implant
A therapeutic exercise program
A supportive device worn externally
A type of prosthetic limb
Explanation - Orthoses are external supports that help correct or improve musculoskeletal function.
Correct answer is: A supportive device worn externally
Q.10 Which principle governs the design of a hydraulic assistive wheelchair?
Bernoulli's principle
Pascal's law
Hooke's law
Coulomb's law
Explanation - Pascal's law states that pressure applied to a confined fluid is transmitted equally in all directions, which is fundamental to hydraulic systems.
Correct answer is: Pascal's law
Q.11 What is the typical range of motion for the human elbow joint?
0° to 180°
0° to 120°
0° to 90°
0° to 45°
Explanation - The elbow normally flexes and extends within approximately 0° to 120°.
Correct answer is: 0° to 120°
Q.12 Which of the following is a feature of a powered prosthetic knee?
Manual lever
Electric motor
Spine support
Cane attachment
Explanation - Powered prosthetic knees use electric motors to assist in the swing and stance phases of gait.
Correct answer is: Electric motor
Q.13 How does a cochlear implant help individuals with hearing loss?
By amplifying sound through headphones
By stimulating the auditory nerve electrically
By producing speech recognition software
By using a bone conduction helmet
Explanation - A cochlear implant bypasses damaged inner ear structures and directly stimulates the auditory nerve with electrical signals.
Correct answer is: By stimulating the auditory nerve electrically
Q.14 In biomechanics, the term 'force plate' is used for:
Measuring blood pressure
Detecting muscle fatigue
Capturing ground reaction forces during gait
Measuring body temperature
Explanation - Force plates record the forces exerted on the ground, useful for analyzing gait patterns.
Correct answer is: Capturing ground reaction forces during gait
Q.15 What is the primary advantage of a low-profile wheelchair?
Higher speed
Easier storage and navigation in narrow spaces
Larger seat
Greater weight capacity
Explanation - Low-profile wheels allow the wheelchair to navigate through tighter areas and are more compact when folded.
Correct answer is: Easier storage and navigation in narrow spaces
Q.16 Which type of prosthetic socket design accommodates changes in limb volume?
Rigid socket
Gel socket
Pneumatic socket
Adjustable socket
Explanation - Adjustable sockets can be tightened or loosened to manage volume changes in residual limbs.
Correct answer is: Adjustable socket
Q.17 What does the term 'user-centered design' imply in assistive device development?
Designing devices for factory workers
Designing devices without user input
Incorporating user needs, preferences, and abilities throughout the design process
Focusing only on aesthetics
Explanation - User-centered design ensures the device meets real-world needs and is ergonomically suitable for its intended users.
Correct answer is: Incorporating user needs, preferences, and abilities throughout the design process
Q.18 Which of the following is a key consideration when selecting a material for a prosthetic foot?
Color only
Weight, flexibility, and durability
Magnetic properties
Flammability rating
Explanation - A prosthetic foot must balance lightness, structural flexibility, and long-term wear resistance.
Correct answer is: Weight, flexibility, and durability
Q.19 In rehabilitation engineering, what is the purpose of a robotic gait trainer?
To provide entertainment
To assist patients in practicing walking movements under controlled conditions
To diagnose heart disease
To monitor sleep patterns
Explanation - Robotic gait trainers enable patients to perform repetitive, guided walking to improve gait and strength.
Correct answer is: To assist patients in practicing walking movements under controlled conditions
Q.20 Which component of a prosthetic limb provides sensory feedback to the user?
Battery pack
Microprocessor
Tactile sensor array
Cooling fan
Explanation - Tactile sensors detect pressure and texture, sending signals to the prosthetic controller for feedback.
Correct answer is: Tactile sensor array
Q.21 Which of the following is NOT typically a benefit of an adaptive bike for people with disabilities?
Improved cardiovascular health
Enhanced social interaction
Increased risk of falling due to extra controls
Increased independence
Explanation - Adaptive bikes are designed to improve safety and independence, not increase fall risk.
Correct answer is: Increased risk of falling due to extra controls
Q.22 What is the main biomechanical principle behind a hip abductor training exercise?
Reducing the range of motion
Increasing the strength of muscles that move the leg away from the body's midline
Decreasing muscle mass
Improving upper body strength
Explanation - Hip abductor exercises target the gluteus medius and minimus to stabilize the pelvis during gait.
Correct answer is: Increasing the strength of muscles that move the leg away from the body's midline
Q.23 Which assistive technology can help individuals with visual impairments navigate using auditory cues?
Braille keyboard
Tactile map
Audio navigation system
Color-coded stickers
Explanation - Audio navigation provides spoken directions to assist visually impaired users in moving through spaces.
Correct answer is: Audio navigation system
Q.24 When designing a wheelchair ramp, which slope ratio is considered safe for most users?
1:1
1:2
1:4
1:10
Explanation - A 1:4 (25%) slope is commonly recommended for wheelchair ramps to ensure safe ascent and descent.
Correct answer is: 1:4
Q.25 What is the main advantage of using carbon fiber in exoskeleton joints?
High electrical conductivity
High weight
Low cost
Lightweight strength and stiffness
Explanation - Carbon fiber offers high tensile strength while remaining lightweight, ideal for wearable robotics.
Correct answer is: Lightweight strength and stiffness
Q.26 Which of the following is a primary concern in the design of a powered prosthetic hand?
Battery life
Number of buttons
Color scheme
Scent
Explanation - Battery life directly affects the functional use time of a powered prosthetic hand.
Correct answer is: Battery life
Q.27 In assistive technology, what does the term 'hand-over-hand' refer to?
Using a cane
A method of walking with a walker
A style of wheelchair propulsion
A type of speech therapy
Explanation - Hand-over-hand is a propulsion technique where the user alternately pushes the wheels with each hand.
Correct answer is: A style of wheelchair propulsion
Q.28 What is the purpose of a 'myoelectric' prosthesis?
To use muscle electrical signals to control the prosthetic
To use mechanical gears only
To use voice commands
To use light sensors
Explanation - Myoelectric prostheses detect EMG signals from residual muscles to drive the prosthetic motion.
Correct answer is: To use muscle electrical signals to control the prosthetic
Q.29 Which biomechanical measurement is essential for determining knee joint load during walking?
Blood pressure
Ground reaction force
Heart rate
Body temperature
Explanation - Ground reaction force data help compute joint moments and loads during gait analysis.
Correct answer is: Ground reaction force
Q.30 What is the main benefit of a 'multi-directional' wheelchair wheel?
Smoother ride on uneven surfaces
Higher speed on flat ground
Less maintenance
Better aesthetics
Explanation - Multi-directional wheels can rotate around multiple axes, improving maneuverability on rough terrain.
Correct answer is: Smoother ride on uneven surfaces
Q.31 Which sensor type is often used in a prosthetic foot to detect ground contact?
Thermal sensor
Pressure sensor
Light sensor
Humidity sensor
Explanation - Pressure sensors in prosthetic feet sense ground contact to adjust stance and swing phases.
Correct answer is: Pressure sensor
Q.32 In a typical gait cycle, what is the 'heel strike' event?
The foot leaves the ground
The heel first contacts the ground
The ankle turns
The toes touch the ground
Explanation - Heel strike marks the beginning of the stance phase when the heel contacts the surface.
Correct answer is: The heel first contacts the ground
Q.33 Which device helps individuals with mobility impairments reach high shelves?
Telescopic ladder
Reacher grabber
Wheelchair
Cane
Explanation - A reacher grabber extends the user's reach, allowing them to grab items without climbing.
Correct answer is: Reacher grabber
Q.34 What is 'static balance' in the context of rehabilitation engineering?
Ability to maintain a fixed posture without movement
Speed of walking
Reaction to moving obstacles
Heart rate during exercise
Explanation - Static balance refers to the ability to hold a stable position, like standing still.
Correct answer is: Ability to maintain a fixed posture without movement
Q.35 Which of the following best describes a 'suspension' system in a prosthetic knee?
An electric motor for power
A passive system that absorbs shock
A type of software
A type of battery
Explanation - Suspension systems in knees manage shock during stance to improve comfort and function.
Correct answer is: A passive system that absorbs shock
Q.36 Which of these devices uses a 'haptic feedback' mechanism to assist users?
Smartphone
Haptic-enabled prosthetic glove
Electric toothbrush
Flashlight
Explanation - Haptic feedback provides tactile cues to improve prosthetic control and awareness.
Correct answer is: Haptic-enabled prosthetic glove
Q.37 What is the main function of a 'handrail' in wheelchair design?
To increase speed
To provide support for propulsion
To serve as decoration
To store batteries
Explanation - Handrails allow users to push or pull the wheelchair for movement.
Correct answer is: To provide support for propulsion
Q.38 Which of the following is a key ergonomic feature of an adjustable wheelchair seat?
Fixed backrest
Adjustable lumbar support
No seat cushion
Hard plastic seat
Explanation - Lumbar support helps maintain proper spinal alignment for comfort and safety.
Correct answer is: Adjustable lumbar support
Q.39 In robotics, what does the term 'degrees of freedom' (DOF) refer to?
Number of batteries
Number of possible independent movements
Number of wheels
Number of sensors
Explanation - Degrees of freedom count how many independent motions a robotic joint or system can perform.
Correct answer is: Number of possible independent movements
Q.40 Which is a major safety consideration when using powered prosthetic limbs?
Color of the device
Battery charging time
Weight load capacity of the user
Type of music playing
Explanation - Ensuring the prosthetic can safely support the user’s weight is critical for safety.
Correct answer is: Weight load capacity of the user
Q.41 What type of analysis is used to determine the forces acting on the human ankle during running?
Thermal analysis
Finite element analysis
Cost analysis
Marketing analysis
Explanation - Finite element analysis helps model complex biomechanical structures under load.
Correct answer is: Finite element analysis
Q.42 Which assistive device helps individuals with speech impairments communicate using pre-recorded messages?
Speech synthesizer
Text-to-speech software
Voice recorder
All of the above
Explanation - All listed tools can aid in speech communication for those with impairments.
Correct answer is: All of the above
Q.43 Which component is essential for a 'hand-controlled' wheelchair?
Joystick
Steering wheel
Cane
Gloves
Explanation - A joystick translates hand movements into wheelchair control.
Correct answer is: Joystick
Q.44 The 'heel-to-toe' gait pattern is important for:
Skiing
Walking on uneven terrain
Swimming
Reading
Explanation - Heel-to-toe progression provides stability on irregular surfaces.
Correct answer is: Walking on uneven terrain
Q.45 What is the primary role of a 'neuromuscular stimulator' in rehabilitation?
To provide electrical stimulation to muscles to improve function
To replace a missing limb
To deliver medication
To record heartbeats
Explanation - Neuromuscular stimulators apply electrical pulses to activate muscles for therapy.
Correct answer is: To provide electrical stimulation to muscles to improve function
Q.46 In designing an assistive device, what does 'ergonomics' primarily focus on?
Aesthetics
User comfort and efficient use
Cost reduction
Energy consumption
Explanation - Ergonomics ensures devices fit well with human body and activity patterns.
Correct answer is: User comfort and efficient use
Q.47 Which of the following is a common application of 3D printing in prosthetics?
Producing custom sockets
Cooking meals
Manufacturing cars
Printing paper
Explanation - 3D printing allows personalized prosthetic sockets tailored to the user’s anatomy.
Correct answer is: Producing custom sockets
Q.48 What is the main advantage of using a 'dual-mode' prosthetic knee?
It can switch between manual and powered assistance
It is cheaper
It has fewer moving parts
It is heavier
Explanation - Dual-mode knees provide flexibility, allowing the user to choose the needed level of assistance.
Correct answer is: It can switch between manual and powered assistance
Q.49 Which of these is a typical outcome measure in a gait rehabilitation study?
Walking speed
Blood sugar level
Shoe size
Eye color
Explanation - Walking speed is a key metric for assessing gait improvement.
Correct answer is: Walking speed
Q.50 What does the term 'assistive technology' encompass?
Tools to help people with disabilities perform tasks
Only medical devices
Only computer programs
Only furniture
Explanation - Assistive technology includes a wide range of devices that support daily living for those with impairments.
Correct answer is: Tools to help people with disabilities perform tasks
Q.51 Which sensor type can be used in a prosthetic to detect grip strength?
Pressure sensor
Light sensor
Temperature sensor
Humidity sensor
Explanation - Pressure sensors measure the force applied by the prosthetic hand to grasp objects.
Correct answer is: Pressure sensor
Q.52 In biomechanics, what does 'moment of inertia' refer to?
Rotational resistance to change
Force applied by muscles
Weight of a body part
Speed of movement
Explanation - Moment of inertia quantifies how resistant a rotating body is to angular acceleration.
Correct answer is: Rotational resistance to change
Q.53 What is the primary goal of using a 'walking frame'?
To provide upper-body support and assist with balance during walking
To increase walking speed dramatically
To replace a wheelchair
To provide storage space
Explanation - Walking frames help maintain stability and support weight during ambulation.
Correct answer is: To provide upper-body support and assist with balance during walking
Q.54 Which of the following is an example of a 'low-tech' assistive device?
Wheelchair
Computer mouse
Speech synthesizer
Robotic exoskeleton
Explanation - Wheelchairs are simple, mechanical devices that do not rely heavily on electronics.
Correct answer is: Wheelchair
Q.55 In powered exoskeletons, what is a 'actuator'?
A control unit
A sensor that measures temperature
A device that converts electrical energy into mechanical motion
A display screen
Explanation - Actuators produce motion or force, enabling movement in robotic systems.
Correct answer is: A device that converts electrical energy into mechanical motion
Q.56 Which of these is a key feature of a 'smart' wheelchair?
Automatic speed adjustment based on terrain
Fixed seat
No battery
Manual steering only
Explanation - Smart wheelchairs adapt to environmental conditions for safety and efficiency.
Correct answer is: Automatic speed adjustment based on terrain
Q.57 In rehabilitation engineering, why is user testing critical?
To ensure the device meets real-world needs
To reduce cost
To design for aesthetics only
To replace clinical trials
Explanation - User testing provides feedback on usability, comfort, and performance.
Correct answer is: To ensure the device meets real-world needs
Q.58 Which material is commonly used for flexible prosthetic feet?
Rubber
Steel
Wood
Lead
Explanation - Rubber offers flexibility and shock absorption needed for prosthetic feet.
Correct answer is: Rubber
Q.59 What does ‘biomechanics’ primarily study?
Human movement mechanics
Economic theory
Software engineering
Chemical reactions
Explanation - Biomechanics examines forces and motions in living organisms.
Correct answer is: Human movement mechanics
Q.60 Which assistive technology allows visually impaired individuals to read printed text?
Screen reader
Braille display
Audiobook
All of the above
Explanation - These tools convert visual information into accessible formats.
Correct answer is: All of the above
Q.61 In a powered prosthetic knee, what does the term 'swing phase' refer to?
The phase when the knee is locked
The phase when the foot is in the air
The phase when the foot touches the ground
The phase of breathing
Explanation - The swing phase is when the limb moves forward without ground contact.
Correct answer is: The phase when the foot is in the air
Q.62 Which of the following is a typical component of a 'hand-controlled' wheelchair?
Hand brake
Foot pedals
Seat belt
Armrest
Explanation - Hand brakes provide braking control for the user.
Correct answer is: Hand brake
Q.63 What is the primary advantage of using a 'hydraulic' assistance system in a wheelchair?
It uses water for propulsion
It allows smooth, continuous motion with high force
It is inexpensive
It eliminates the need for batteries
Explanation - Hydraulic systems can generate large forces with smooth motion.
Correct answer is: It allows smooth, continuous motion with high force
Q.64 What does 'surface electromyography (sEMG)' measure?
Brain activity
Muscle electrical activity via skin surface electrodes
Heart rate
Blood pressure
Explanation - sEMG captures electrical signals generated by muscle contraction.
Correct answer is: Muscle electrical activity via skin surface electrodes
Q.65 Which of the following assistive devices helps with speech production for individuals with aphasia?
Picture exchange communication system (PECS)
Speech synthesizer
Text-to-speech software
All of the above
Explanation - These tools provide alternative means for communication.
Correct answer is: All of the above
Q.66 In gait analysis, what is the significance of the 'plantarflexion' movement?
It involves curling the toes up
It involves pointing the toes down
It involves rotating the foot
It involves turning the ankle side-to-side
Explanation - Plantarflexion is the action of lowering the toes, crucial during the push-off phase.
Correct answer is: It involves pointing the toes down
Q.67 Which of these is a feature of a 'universal design' for wheelchair ramps?
Tactile warning strips
Colorful decorations
High friction surface
All of the above
Explanation - Universal design incorporates safety, accessibility, and usability features.
Correct answer is: All of the above
Q.68 Which sensor is often used to detect footfall in a robotic gait trainer?
Pressure pad
Infrared sensor
Light sensor
Magnetic sensor
Explanation - Pressure pads record the exact moment the foot contacts the ground.
Correct answer is: Pressure pad
Q.69 What is the primary advantage of a 'power wheelchair' over a manual one?
Requires no battery
Provides motorized propulsion for users with limited strength
Is more portable
Has a smaller seat
Explanation - Power wheelchairs enable mobility for individuals who cannot manually propel a wheelchair.
Correct answer is: Provides motorized propulsion for users with limited strength
Q.70 Which of the following best describes 'spasticity' in a neurological context?
Increased muscle tone or stiffness
Decreased muscle mass
Loss of sensation
Improved coordination
Explanation - Spasticity is characterized by heightened muscle tone and hyperreflexia.
Correct answer is: Increased muscle tone or stiffness
Q.71 What role does a 'cog' play in a prosthetic joint?
It provides a mechanical advantage to control motion
It stores energy
It powers the device
It senses temperature
Explanation - Cogs in prosthetic joints help guide and limit motion angles.
Correct answer is: It provides a mechanical advantage to control motion
Q.72 Which type of assistive device assists individuals in performing daily tasks while seated?
Grabber tool
Standing desk
Wheelchair
Walkie-talkie
Explanation - Grabber tools help reach items while seated, improving independence.
Correct answer is: Grabber tool
Q.73 What is the function of a 'force-feedback' controller in a powered exoskeleton?
To provide resistance based on load
To record GPS data
To play music
To display information
Explanation - Force feedback adjusts the device's resistance to mimic natural movement.
Correct answer is: To provide resistance based on load
Q.74 Which of the following is a key factor in selecting the 'appropriate' wheelchair for a user?
User's height
User's favorite color
Wheel size
All of the above
Explanation - Wheelchair selection considers physical dimensions, aesthetics, and functional features.
Correct answer is: All of the above
Q.75 In biomechanics, the 'center of mass' is:
The point where the body balances on a surface
The heaviest part of the body
The point where the body rotates
The point that determines center of gravity
Explanation - The center of mass is the average location of weight in a body.
Correct answer is: The point where the body balances on a surface
Q.76 Which assistive technology is specifically designed to help individuals with hearing loss understand speech via visual cues?
Hearing aid
Captioning system
Tinnitus masker
Balance board
Explanation - Captioning provides real-time subtitles for audio content.
Correct answer is: Captioning system
Q.77 What is a key benefit of a 'lightweight' exoskeleton?
It reduces fatigue in the wearer
It uses more power
It is more expensive
It has a larger battery
Explanation - A lightweight design decreases the load on the user, improving comfort.
Correct answer is: It reduces fatigue in the wearer
Q.78 Which of the following devices uses a 'biological' interface for control?
Brain-computer interface (BCI)
Electric toothbrush
Mechanical clock
Washing machine
Explanation - BCI captures neural signals to control external devices.
Correct answer is: Brain-computer interface (BCI)
Q.79 In prosthetic design, what is 'socket fit' critical for?
Comfort, stability, and proper load distribution
Aesthetics only
Battery life
Sound production
Explanation - A good socket fit is essential for preventing skin breakdown and ensuring function.
Correct answer is: Comfort, stability, and proper load distribution
Q.80 Which of these is a common form of sensory feedback for prosthetic limbs?
Electrical stimulation of skin
Visual display
Sound cues
All of the above
Explanation - Electrical stimulation provides tactile sensation to the user.
Correct answer is: Electrical stimulation of skin
Q.81 What is the primary function of an 'assistive listening device'?
Enhance sound quality for hearing-impaired users
Measure blood pressure
Increase reading speed
Track physical activity
Explanation - Assistive listening devices amplify and direct sound for better hearing.
Correct answer is: Enhance sound quality for hearing-impaired users
Q.82 Which type of 'prosthetic foot' is most commonly used for level-ground walking?
Solid foot
Flexible foot
Rocking foot
All of the above
Explanation - Different foot designs are used based on gait patterns and user needs.
Correct answer is: All of the above
Q.83 In a biomechanical model, what does the term 'joint stiffness' refer to?
The ability of a joint to resist deformation
The joint’s flexibility
The joint’s color
The joint’s mass
Explanation - Joint stiffness describes how much resistance a joint provides to motion.
Correct answer is: The ability of a joint to resist deformation
Q.84 Which component is crucial for a wheelchair’s stability on uneven terrain?
Low center of gravity
Large wheels
Heavy weight
No brakes
Explanation - A low center of gravity improves balance on uneven ground.
Correct answer is: Low center of gravity
Q.85 What is a typical application for an 'assistive robotic arm' in rehabilitation?
Rehabilitation of hand function
Cooking
Driving
Reading
Explanation - Robotic arms can guide hand movements during therapy.
Correct answer is: Rehabilitation of hand function
Q.86 In the design of a powered exoskeleton, why is 'battery capacity' important?
It determines how long the device can operate
It influences the device color
It reduces weight
It is unrelated to performance
Explanation - Battery capacity directly affects the operational duration.
Correct answer is: It determines how long the device can operate
Q.87 Which of the following is a key consideration when developing an assistive device for pediatric users?
Adjustable sizing
Durability
User-friendly interface
All of the above
Explanation - Pediatric devices must accommodate growth and ease of use.
Correct answer is: All of the above
Q.88 In biomechanics, what is the 'range of motion' (ROM)?
Maximum distance a joint can move
Speed of movement
Weight capacity
Volume of a joint
Explanation - ROM indicates the extent of joint movement possible.
Correct answer is: Maximum distance a joint can move
Q.89 Which type of assistive device helps users with arm and hand paralysis to pick up objects?
Robotic arm
Wheelchair
Cane
Reacher
Explanation - Robotic arms can be programmed to grasp and manipulate objects.
Correct answer is: Robotic arm
Q.90 What does 'treadmill training' involve in rehabilitation?
Walking on a treadmill under guided conditions
Running on a track
Swimming
Climbing stairs
Explanation - Treadmill training provides controlled gait practice for patients.
Correct answer is: Walking on a treadmill under guided conditions
Q.91 Which of the following is an example of a 'low-tech' assistive device for people with mobility impairments?
Walking frame
Smartphone app
Robotic exoskeleton
Augmented reality headset
Explanation - Walking frames are simple mechanical devices providing support.
Correct answer is: Walking frame
Q.92 In biomechanics, what does 'kinetic energy' represent?
Energy stored in muscles
Energy associated with motion
Energy of static objects
Energy from the environment
Explanation - Kinetic energy is the energy a body possesses due to its motion.
Correct answer is: Energy associated with motion
Q.93 What is a key advantage of using 'sensor fusion' in a prosthetic hand?
Combines multiple sensor inputs for better control
Increases the weight
Reduces cost
Limits functionality
Explanation - Sensor fusion enhances decision-making and responsiveness.
Correct answer is: Combines multiple sensor inputs for better control
Q.94 Which of these assistive devices provides electrical stimulation for muscle strengthening?
Neuromuscular stimulator
Wheelchair
Hearing aid
Cane
Explanation - Neuromuscular stimulators use electrical pulses to activate muscles.
Correct answer is: Neuromuscular stimulator
Q.95 What does the acronym 'BMI' stand for in the context of assistive device design?
Body Mass Index
Battery Management Interface
Basic Motor Integration
Braking Mechanism Indicator
Explanation - BMI is used to assess weight relative to height for device fitting.
Correct answer is: Body Mass Index
Q.96 Which type of assistive device is often used to help individuals with speech difficulties?
Speech synthesizer
Wheelchair
Cane
Bicycle
Explanation - Speech synthesizers generate spoken language from text input.
Correct answer is: Speech synthesizer
Q.97 In biomechanical analysis, what is the significance of 'center of pressure' (CoP)?
The point where the ground reaction force is applied
The center of the body’s mass
The point where the body balances on a surface
The point of maximum muscle activity
Explanation - CoP indicates where the load is distributed on the ground during stance.
Correct answer is: The point where the ground reaction force is applied
Q.98 Which of the following is an example of a 'low-cost' assistive technology for developing countries?
Custom 3D-printed prosthetic socket
High-end robotic exoskeleton
Wireless hearing aid
Electric wheelchair
Explanation - 3D printing can reduce costs for personalized prosthetic sockets.
Correct answer is: Custom 3D-printed prosthetic socket
Q.99 What is the main purpose of 'joint stiffness modulation' in a powered prosthetic knee?
To change the knee's resistance to movement based on gait phase
To increase the device weight
To improve battery life
To provide a visual display
Explanation - Stiffness modulation allows the knee to adapt to different walking conditions.
Correct answer is: To change the knee's resistance to movement based on gait phase
Q.100 Which device helps individuals with mobility limitations to cross street intersections safely?
Traffic signal with audible alerts
Elevator
Elevator
Smartphone
Explanation - Audible signals assist those with visual impairments in crossing safely.
Correct answer is: Traffic signal with audible alerts
Q.101 In a powered exoskeleton, which component provides the mechanical output for movement?
Actuator
Controller
Battery
Sensor
Explanation - Actuators are the motors that drive the mechanical motion.
Correct answer is: Actuator
Q.102 What is the role of 'force sensors' in a prosthetic hand?
To measure the force applied by the user
To measure temperature
To measure light
To measure sound
Explanation - Force sensors provide real-time data on grip pressure for control feedback.
Correct answer is: To measure the force applied by the user
Q.103 Which assistive technology provides a visual representation of a user's speech for hearing-impaired individuals?
Captioning system
Hearing aid
Speech synthesizer
All of the above
Explanation - Captioning translates spoken words into on-screen text.
Correct answer is: Captioning system
Q.104 What is a key consideration in the design of a powered wheelchair's braking system?
Rapid response and fail-safe operation
Bright colors
Large wheels
High speed capability
Explanation - Safety is paramount, requiring quick and reliable braking.
Correct answer is: Rapid response and fail-safe operation
Q.105 What does 'haptic feedback' refer to in assistive device technology?
Tactile cues to the user
Visual display
Audio cues
All of the above
Explanation - Haptic feedback uses vibration or pressure to communicate information.
Correct answer is: Tactile cues to the user
Q.106 Which of the following is NOT typically included in a gait analysis protocol?
Marker placement
Force plate measurement
Blood glucose monitoring
Motion capture
Explanation - Gait analysis focuses on movement, not metabolic metrics.
Correct answer is: Blood glucose monitoring
Q.107 What is the main function of a 'hand-controlled' wheelchair’s joystick?
To control speed and direction
To play music
To display a map
To measure heart rate
Explanation - The joystick translates hand movement into wheel movement.
Correct answer is: To control speed and direction
Q.108 Which of the following assists with the rehabilitation of patients with chronic lower back pain?
Lumbar support belt
Electric toothbrush
Hearing aid
Cane
Explanation - Lumbar belts provide external support to reduce strain on the lower back.
Correct answer is: Lumbar support belt
Q.109 In biomechanical modeling, what does 'inertia' represent?
The resistance to changes in motion
The weight of a body part
The speed of movement
The energy of a system
Explanation - Inertia quantifies how much a body resists acceleration.
Correct answer is: The resistance to changes in motion
Q.110 Which assistive device uses a ‘suction’ mechanism to attach to the skin?
Adhesive prosthetic socket
Cane
Wheelchair
Hearing aid
Explanation - Suction sockets attach to the skin to provide stable prosthetic support.
Correct answer is: Adhesive prosthetic socket
Q.111 What is the purpose of an 'orthotic brace' for the ankle?
To restrict motion for injury prevention
To increase muscle mass
To provide heating
To amplify sound
Explanation - An ankle brace limits unwanted motion to protect the joint.
Correct answer is: To restrict motion for injury prevention
Q.112 Which of the following is an example of a 'low-tech' assistive device for individuals with dysgraphia?
Pencil with a thick grip
Speech-to-text software
Electronic pen
Smartphone
Explanation - A thicker grip reduces hand fatigue and improves writing control.
Correct answer is: Pencil with a thick grip
Q.113 In assistive device design, what does 'user interface' primarily concern?
How the user interacts with the device
The device's color
The device's weight
The device's cost
Explanation - The interface defines the methods and ease of user-device interaction.
Correct answer is: How the user interacts with the device
Q.114 Which sensor type is most suitable for detecting footfall timing during robotic gait training?
Pressure pad
Thermocouple
Light sensor
Gyroscope
Explanation - Pressure pads accurately capture ground contact events.
Correct answer is: Pressure pad
Q.115 What does 'force-plate analysis' provide in rehabilitation studies?
Ground reaction force data
Heart rate data
Blood pressure data
Temperature data
Explanation - Force plates measure the forces applied by the foot to the ground.
Correct answer is: Ground reaction force data
Q.116 Which assistive device assists in the daily management of insulin for diabetic patients?
Insulin pen
Hearing aid
Wheelchair
Cane
Explanation - Insulin pens provide precise dosing for diabetes management.
Correct answer is: Insulin pen
Q.117 In a powered prosthetic knee, what is the role of a 'microcontroller'?
Controls the motor and processes sensor data
Stores data for later use
Provides power
Displays information
Explanation - The microcontroller is the brain of the prosthetic, directing motor action.
Correct answer is: Controls the motor and processes sensor data
Q.118 Which of the following is a common challenge when using a 'hand-controlled' wheelchair for individuals with tremors?
Difficulty in steering accurately
Increased battery life
Improved speed
None of the above
Explanation - Tremors can make precise joystick control difficult.
Correct answer is: Difficulty in steering accurately
Q.119 What does 'isometric' muscle contraction refer to?
Contraction without change in muscle length
Contraction with muscle shortening
Contraction with muscle lengthening
No contraction
Explanation - Isometric contractions generate force without joint movement.
Correct answer is: Contraction without change in muscle length
Q.120 Which assistive device uses a 'cane' to aid individuals with mild balance issues?
Walking cane
Wheelchair
Hearing aid
Glasses
Explanation - A walking cane provides additional support and balance.
Correct answer is: Walking cane
Q.121 Which of the following is an example of a 'low-tech' assistive device for people with vision loss?
Talking clock
Smartphone with screen reader
Robot vacuum
Smart watch
Explanation - Talking clocks provide audible time cues without digital components.
Correct answer is: Talking clock
Q.122 In assistive technology, what does the acronym 'ADA' stand for?
Americans with Disabilities Act
Advanced Device Array
Assistive Design Algorithm
Automated Diagnostic Assistant
Explanation - ADA sets standards for accessibility in design and services.
Correct answer is: Americans with Disabilities Act
Q.123 Which biomechanical concept explains why the heel strikes first during a normal walk?
Heel strike improves stability and allows shock absorption
Heel strike is a random event
Heel strike increases speed
Heel strike reduces energy consumption
Explanation - The heel absorbs impact, stabilizing the body during stance.
Correct answer is: Heel strike improves stability and allows shock absorption
Q.124 What is a major benefit of using 'low-profile' wheels on a wheelchair?
Easier to fold and store
Higher speed
Greater stability on rough terrain
Reduced battery consumption
Explanation - Low-profile wheels allow the chair to be folded into a compact size.
Correct answer is: Easier to fold and store
Q.125 Which type of 'assistive technology' helps users with hearing impairment to locate the source of sound?
Directional microphone
Hearing aid
Visual display
All of the above
Explanation - Directional microphones help locate sound direction for hearing aids.
Correct answer is: Directional microphone
Q.126 In the design of a powered exoskeleton, what is the purpose of a 'feedback loop'?
To adjust motor output based on sensor input
To provide audio feedback
To store data
To provide power to the device
Explanation - Feedback loops enable dynamic control and adaptation during movement.
Correct answer is: To adjust motor output based on sensor input
Q.127 Which of the following devices assists people with limited hand dexterity in writing?
Adaptive writing tool
Wheelchair
Hearing aid
Cane
Explanation - Adaptive tools modify writing implements for better grip and control.
Correct answer is: Adaptive writing tool
Q.128 What is the significance of 'torque control' in powered exoskeletons?
It regulates the magnitude of rotational force applied by the device
It measures temperature
It adjusts the device color
It improves battery life
Explanation - Torque control ensures smooth and safe movement during assisted motion.
Correct answer is: It regulates the magnitude of rotational force applied by the device
Q.129 Which assistive device uses 'pressure mapping' to identify high-load areas on a wheelchair seat?
Pressure mapping cushion
Cane
Wheelchair
Hearing aid
Explanation - Pressure mapping helps distribute weight and prevent pressure sores.
Correct answer is: Pressure mapping cushion
Q.130 In biomechanical studies, what does the term 'gait symmetry' refer to?
Similar left and right leg movement patterns
Similar hand movements
Similar arm swing
Similar facial expressions
Explanation - Gait symmetry measures the balance between the two sides during walking.
Correct answer is: Similar left and right leg movement patterns
Q.131 What is a key design factor for a 'smart' wheelchair’s navigation system?
Obstacle detection and avoidance
Bright color
High speed
Large battery
Explanation - Smart wheelchairs use sensors to detect and avoid obstacles.
Correct answer is: Obstacle detection and avoidance
Q.132 Which of the following is a low-tech assistive device for individuals with arthritis in their hands?
Hand grip exerciser
Robotic exoskeleton
Smartphone
Electric toothbrush
Explanation - A grip exerciser strengthens hand muscles without electronics.
Correct answer is: Hand grip exerciser
Q.133 In rehabilitation engineering, what does the term 'mobility aid' encompass?
Devices that help movement or independence
Medical devices only
Sports equipment
Office furniture
Explanation - Mobility aids include wheelchairs, walkers, canes, and other devices.
Correct answer is: Devices that help movement or independence
Q.134 What is the main purpose of a 'hand-held power tool' in assistive technology?
To perform tasks that would otherwise require manual effort
To play music
To measure heart rate
To provide visual display
Explanation - Hand-held power tools reduce physical strain for tasks like cutting or drilling.
Correct answer is: To perform tasks that would otherwise require manual effort
Q.135 Which biomechanical concept describes the relationship between force and motion?
Newton’s laws of motion
Bernoulli’s principle
Hooke’s law
Pascal’s law
Explanation - Newton’s laws describe how forces affect motion and acceleration.
Correct answer is: Newton’s laws of motion
Q.136 In the context of exoskeleton design, what does 'degrees of freedom' (DOF) refer to?
Number of independent motions the device can produce
Battery capacity
Weight capacity
Number of colors available
Explanation - DOF indicates the number of axes the exoskeleton can move.
Correct answer is: Number of independent motions the device can produce
Q.137 What is the primary function of a 'suspension system' in a powered knee prosthesis?
To absorb shock and improve comfort
To increase speed
To reduce battery consumption
To enhance aesthetic appeal
Explanation - Suspension systems smooth the impact during stance for comfort.
Correct answer is: To absorb shock and improve comfort
Q.138 Which assistive device assists individuals with low vision by providing auditory feedback on visual information?
Talking book reader
Hearing aid
Smartphone
Cane
Explanation - Talking readers convert printed text into audible speech.
Correct answer is: Talking book reader
Q.139 In biomechanics, what does the term 'muscle activation pattern' describe?
The timing and intensity of muscle activity during movement
The shape of the muscle
The color of the muscle
The weight of the muscle
Explanation - Activation patterns reveal coordination between muscles.
Correct answer is: The timing and intensity of muscle activity during movement
Q.140 Which of the following is a typical feature of an adaptive keyboard for individuals with motor impairments?
Large keys and high contrast labels
Colorful stickers
Lightweight plastic
Built-in speaker
Explanation - Large, high-contrast keys improve accessibility.
Correct answer is: Large keys and high contrast labels
Q.141 What is the function of a 'pressure sensor' in a prosthetic foot?
Detects ground contact to trigger gait events
Measures temperature
Detects sound
Measures weight only
Explanation - Foot pressure sensors inform the prosthetic when to switch phases.
Correct answer is: Detects ground contact to trigger gait events
Q.142 Which type of 'assistive device' helps people with mobility impairments to navigate stairs?
Stair-climbing wheelchair
Wheelchair
Cane
Hearing aid
Explanation - Stair-climbing wheelchairs can ascend and descend stairs safely.
Correct answer is: Stair-climbing wheelchair
Q.143 In assistive device design, what does the term 'modular' mean?
Components can be added or removed to adapt to user needs
It is fixed in size
It has no battery
It is expensive
Explanation - Modular design allows customization and future upgrades.
Correct answer is: Components can be added or removed to adapt to user needs
Q.144 Which of the following is a characteristic of a 'dynamic' exoskeleton?
Provides active assistance during movement
Is purely passive
Requires no power
Is static
Explanation - Dynamic exoskeletons use motors or hydraulics to assist movement.
Correct answer is: Provides active assistance during movement
Q.145 What is a 'rehabilitation robot' primarily used for?
Guided physical therapy and movement training
Cooking
Cleaning
Entertainment
Explanation - Rehabilitation robots provide repetitive, controlled exercises.
Correct answer is: Guided physical therapy and movement training
Q.146 Which of these assistive devices is considered a 'low-tech' solution for improving speech for individuals with dysarthria?
Voice amplification microphone
Speech-to-text software
Hearing aid
Talking clock
Explanation - A voice mic amplifies speech without complex electronics.
Correct answer is: Voice amplification microphone
Q.147 What is the main advantage of a 'circular' wheelchair wheel?
Provides more stability and a smoother ride on rough terrain
Is easier to fold
Is cheaper
Has a smaller radius
Explanation - Circular wheels roll smoothly and absorb shocks better.
Correct answer is: Provides more stability and a smoother ride on rough terrain
Q.148 In biomechanics, how is 'angular velocity' defined?
Rate of change of angular displacement over time
Speed of linear movement
Force divided by mass
Energy of a system
Explanation - Angular velocity measures how fast an object rotates.
Correct answer is: Rate of change of angular displacement over time
Q.149 Which of the following assistive devices can be used to help individuals with hearing impairment in a classroom setting?
Induction loop system
Cane
Wheelchair
Stairlift
Explanation - Induction loops transmit audio directly to hearing aids.
Correct answer is: Induction loop system
Q.150 What is the function of a 'pressure sensor array' on a prosthetic hand?
Detects different levels of grip force
Detects temperature
Detects sound
Detects light intensity
Explanation - The array provides precise grip control and tactile feedback.
Correct answer is: Detects different levels of grip force
Q.151 Which of the following is a key feature of a 'powered' prosthetic ankle?
Provides active push-off during gait
Is purely passive
Has no sensors
Requires no power source
Explanation - Powered ankles can assist the user in generating the force for push-off.
Correct answer is: Provides active push-off during gait
Q.152 What does 'ergonomic design' aim to achieve in assistive device development?
Optimize fit and minimize discomfort or injury risk
Increase cost
Enhance color variety
Reduce battery life
Explanation - Ergonomics focuses on human comfort and efficient interaction.
Correct answer is: Optimize fit and minimize discomfort or injury risk
Q.153 Which of the following is NOT typically part of a gait analysis setup?
Motion capture cameras
Force plates
Blood pressure cuff
Surface EMG electrodes
Explanation - Gait analysis focuses on movement, not cardiovascular metrics.
Correct answer is: Blood pressure cuff
Q.154 What is a typical use for a 'pressure sensitive carpet' in rehabilitation?
To provide real-time feedback on weight distribution
To monitor heart rate
To measure temperature
To play music
Explanation - Such carpets help patients see where their weight is placed during standing or walking.
Correct answer is: To provide real-time feedback on weight distribution
Q.155 Which device helps individuals with speech disorders by allowing them to type and have the device read it aloud?
Text-to-speech software
Hearing aid
Cane
Wheelchair
Explanation - TTS software converts written words into spoken language.
Correct answer is: Text-to-speech software
Q.156 What is the main benefit of an 'adaptive' prosthetic foot?
It can change shape based on terrain or activity
It has no sensors
It is heavy
It cannot rotate
Explanation - Adaptive feet adjust to provide better shock absorption or traction.
Correct answer is: It can change shape based on terrain or activity
Q.157 In biomechanics, what does 'joint range of motion' (ROM) indicate?
The full extent of movement a joint can achieve
The mass of a joint
The speed of movement
The joint’s temperature
Explanation - ROM reflects how far a joint can bend or extend.
Correct answer is: The full extent of movement a joint can achieve
Q.158 Which of the following assistive devices helps people with low vision navigate stairs?
Tactile stair markers
Hearing aid
Wheelchair
Cane
Explanation - Markers provide a physical cue for safer stair navigation.
Correct answer is: Tactile stair markers
Q.159 What is a key advantage of using a 'hydraulic' propulsion system in a powered wheelchair?
Smooth and powerful torque delivery
Increased speed
Reduced maintenance
Lighter weight
Explanation - Hydraulics can deliver consistent force for reliable propulsion.
Correct answer is: Smooth and powerful torque delivery
Q.160 Which component in a powered exoskeleton is responsible for detecting user intent?
Sensors (e.g., IMUs, EMG)
Battery
Display screen
Controller board
Explanation - Sensors interpret movement or muscle activity to infer intent.
Correct answer is: Sensors (e.g., IMUs, EMG)
Q.161 What is the primary function of a 'hand-held power tool' in assistive technology?
Reduce manual effort for tasks such as cutting or drilling
Play music
Measure heart rate
Provide a visual display
Explanation - Power tools simplify tasks that would otherwise be difficult due to limited strength.
Correct answer is: Reduce manual effort for tasks such as cutting or drilling
Q.162 In biomechanics, the term 'torque' is best defined as:
Rotational force applied to a joint
Linear speed of a body part
Mass times acceleration
Force divided by distance
Explanation - Torque describes the tendency of a force to cause rotational motion.
Correct answer is: Rotational force applied to a joint
Q.163 Which of the following is an example of a 'high-tech' assistive device for individuals with mobility impairments?
Electric powered wheelchair
Manual cane
Stair climbing wheelchair
Both A and C
Explanation - Electric powered wheelchairs and stair climbing wheelchairs are technologically advanced.
Correct answer is: Both A and C
Q.164 What is a 'biomechanical simulation' used for in rehabilitation engineering?
To predict how a device will interact with human movement
To design a building
To measure heart rate
To create a video game
Explanation - Simulations help optimize device performance before prototyping.
Correct answer is: To predict how a device will interact with human movement
Q.165 Which assistive device can help a person with speech difficulty to communicate through pre-recorded messages?
Talking stick
Talking book reader
Hearing aid
Cane
Explanation - Talking devices convert written text into spoken words for communication.
Correct answer is: Talking book reader
Q.166 What is the primary advantage of using 'lightweight materials' in exoskeleton design?
Reduces the load on the user and enhances comfort
Increases the weight of the device
Decreases battery life
Makes the device less efficient
Explanation - Lightweight components minimize fatigue during use.
Correct answer is: Reduces the load on the user and enhances comfort
Q.167 In assistive technology, what does the term 'user interface' refer to?
The way users interact with the device (controls, displays, etc.)
The device’s color
The device’s weight
The device’s cost
Explanation - The user interface is the point of interaction between the user and the device.
Correct answer is: The way users interact with the device (controls, displays, etc.)
Q.168 Which assistive device helps individuals with impaired balance to maintain stability when walking?
Balance board
Wheelchair
Cane
Hearing aid
Explanation - Balance boards train proprioception and core stability.
Correct answer is: Balance board
Q.169 What is a major consideration when designing a 'portable' wheelchair for travelers?
Compactness and foldability
High speed
Large battery capacity only
Aesthetic color options
Explanation - Travelers need a chair that can be easily transported and stored.
Correct answer is: Compactness and foldability
Q.170 What does the 'center of pressure' (CoP) indicate in gait analysis?
The point where the ground reaction force is applied during stance
The center of mass of the body
The position of the foot during swing
The point of maximum muscle activation
Explanation - CoP is critical for understanding load distribution on the foot.
Correct answer is: The point where the ground reaction force is applied during stance
Q.171 Which of the following assistive devices can be used to help individuals with low vision identify obstacles in their path?
Tactile floor tiles
Visual display
Hearing aid
Cane
Explanation - Tactile tiles provide tactile feedback about the walking surface.
Correct answer is: Tactile floor tiles
Q.172 In the context of exoskeletons, what is the purpose of a 'torque sensor'?
To measure the force applied at joints for control feedback
To provide a visual display
To measure temperature
To detect sound
Explanation - Torque sensors enable dynamic adjustment of assistance levels.
Correct answer is: To measure the force applied at joints for control feedback
Q.173 Which assistive device can be used by individuals with severe limb loss to perform daily tasks?
Powered prosthetic arm
Cane
Wheelchair
Stairlift
Explanation - A powered prosthetic arm provides functional grasp and manipulation.
Correct answer is: Powered prosthetic arm
Q.174 What is the function of an 'assistive walking frame'?
To provide stability and support for individuals with limited mobility
To play music
To measure heart rate
To provide visual display
Explanation - Walking frames assist with balance and movement.
Correct answer is: To provide stability and support for individuals with limited mobility
Q.175 Which of the following is a typical component of a powered exoskeleton's control system?
Microcontroller, sensors, actuators, power supply
Thermocouple, battery, LED
Pressure sensor only
None of the above
Explanation - These components coordinate the exoskeleton's operation.
Correct answer is: Microcontroller, sensors, actuators, power supply
Q.176 Which assistive device helps people with hearing loss to better localize sound sources?
Directional microphone
Hearing aid
Visual display
Cane
Explanation - It focuses on sound from a particular direction for easier localization.
Correct answer is: Directional microphone
Q.177 What is a key benefit of using 'hydraulic' actuators in a powered exoskeleton?
Smooth, continuous motion with high force capacity
Lighter weight
Higher speed
Lower cost
Explanation - Hydraulics can deliver consistent torque across a wide range of motion.
Correct answer is: Smooth, continuous motion with high force capacity
Q.178 In the field of rehabilitation engineering, what is meant by 'assistive technology'?
Tools and devices that support daily living for people with disabilities
Only software solutions
Only medical equipment
Only educational tools
Explanation - Assistive technology spans a wide array of tools, from simple devices to complex systems.
Correct answer is: Tools and devices that support daily living for people with disabilities
Q.179 Which of the following assistive devices is specifically designed to help people with balance issues walk on uneven surfaces?
Stabilizing ankle brace
Wheelchair
Cane
Hearing aid
Explanation - An ankle brace provides support to reduce missteps on uneven ground.
Correct answer is: Stabilizing ankle brace
Q.180 In biomechanics, what does 'mechanical advantage' refer to?
The ratio of output to input force in a lever system
The mass of a body part
The speed of movement
The amount of energy stored
Explanation - Mechanical advantage quantifies how a lever amplifies force.
Correct answer is: The ratio of output to input force in a lever system
Q.181 Which assistive device helps individuals with low vision to read printed text by converting it into speech?
Talking book reader
Hearing aid
Cane
Wheelchair
Explanation - Talking devices read out printed words for the user.
Correct answer is: Talking book reader
Q.182 What is a primary safety feature of a 'power wheelchair's' emergency stop system?
Immediate cessation of motion when activated
Increased speed
Lighter weight
Higher battery capacity
Explanation - Emergency stops quickly halt the chair in unsafe conditions.
Correct answer is: Immediate cessation of motion when activated
Q.183 Which of the following is a common application of 'surface EMG' in prosthetic control?
Detecting muscle activation patterns for limb control
Measuring heart rate
Detecting temperature
Measuring blood pressure
Explanation - sEMG provides signals for controlling myoelectric prostheses.
Correct answer is: Detecting muscle activation patterns for limb control
Q.184 What is the primary purpose of a 'pressure-sensing seat cushion'?
To monitor and redistribute pressure to prevent skin breakdown
To measure heart rate
To play music
To provide visual display
Explanation - Pressure sensors identify high-pressure zones and help redistribute load.
Correct answer is: To monitor and redistribute pressure to prevent skin breakdown
Q.185 In rehabilitation engineering, what does the term 'assistive walking robot' describe?
A robot that guides users through gait training sessions
A robot that plays music
A robot that cleans floors
A robot that cooks meals
Explanation - Assistive walking robots help patients practice walking with controlled support.
Correct answer is: A robot that guides users through gait training sessions
Q.186 Which assistive device uses an 'adaptor' to connect a smartphone to a hearing aid?
Bluetooth receiver
Cane
Wheelchair
Stairlift
Explanation - Bluetooth receivers transmit audio from smartphones to hearing aids.
Correct answer is: Bluetooth receiver
Q.187 What is a key consideration in designing a 'powered prosthetic ankle' for a runner?
High torque, quick response, and lightweight construction
Heavy weight for stability
Large battery size only
No sensors
Explanation - Runners require powerful, responsive ankle dynamics for optimal performance.
Correct answer is: High torque, quick response, and lightweight construction
Q.188 Which of the following assistive devices helps individuals with speech impairment to communicate using pre-recorded phrases?
Talking stick
Talking book reader
Hearing aid
Cane
Explanation - Talking devices can play pre-recorded messages or text-to-speech.
Correct answer is: Talking book reader
Q.189 What does a 'suspension' system in a powered prosthetic knee aim to accomplish?
Absorb shock during stance phase for comfort
Increase speed
Reduce battery life
Enhance aesthetics
Explanation - Suspension helps smooth the transition between stance and swing.
Correct answer is: Absorb shock during stance phase for comfort