Sensors and Actuators - JSS3 Basic technology Past Questions and Answers - page 1
What is the primary function of sensors?
Convert electrical signals into physical action
Detect and respond to physical stimuli
Control valves and regulate engine components
Transmit data wirelessly
Which type of sensor is commonly used for touchless interfaces in smartphones?
Temperature sensor
Proximity sensor
Accelerometer sensor
Light sensor
What is the role of actuators in automated systems?
Convert physical stimuli into electrical signals
Control heavy machinery in manufacturing
Monitor and regulate room temperature
Detect motion and adjust lighting
Which actuator type is commonly used to adjust mirror positions in vehicles?
Hydraulic actuator
Solenoid actuator
Electrical actuator
Pneumatic actuator
In which industry are hydraulic actuators typically used?
Automotive
Healthcare
Aerospace
Entertainment
What is the function of an accelerometer sensor?
Measure temperature
Detect motion and orientation
Monitor air pressure
Transmit radio signals
Which sensor type is crucial for precise climate control in smart homes?
Proximity sensor
Light sensor
Temperature sensor
Pressure sensor
What is the primary difference between sensors and actuators?
Sensors convert electrical signals, while actuators detect physical stimuli
Sensors detect physical stimuli, while actuators convert electrical signals
Sensors and actuators perform the same functions
Sensors and actuators are only used in medical applications
Which actuator type is used for controlling the movement of robotic arms?
Solenoid actuator
Hydraulic actuator
Pneumatic actuator
Motor actuator
What type of sensor is used for monitoring environmental conditions in agriculture?
Light sensor
Soil moisture sensor
Proximity sensor
Pressure sensor