WorksheetsSensor and Actuators_01
Total questions: 10
Worksheet time: 2mins
Which of the following is a key function of a sensor?
Store electrical energy
Convert physical quantity into electrical signals
Block signal noise
Control actuator speed
Incremental position encoders determine distance by:
Counting rotations
Measuring voltage difference
Counting transitions between light and dark patterns
Calculating magnetic field strength
A Light Dependent Resistor (LDR) is best interfaced using:
Capacitive divider circuit
Potential divider circuit
Inductive coil circuit
Pulse-width modulation
Which sensor type typically requires AC circuitry for interfacing?
Resistive sensors
Capacitive and inductive sensors
Switch-based sensors
Thermal sensors
Which actuator is commonly used to create rotary or linear motion in low-power control systems?
Solenoid
DC motor
Ultrasonic speaker
Thermistor
What is the main role of actuator interfacing in electronic systems?
Reduce power consumption
Convert analog signals to digital
Enable proper power control to actuators
Increase sensor accuracy
Which actuator type converts electrical energy into sound by vibrating a diaphragm?
Stepper motor
Speaker
Solenoid
LED
Which characteristic makes LCDs ideal for low-power applications?
They use high current to glow
They generate light internally
They can use ambient light for display
They operate with inductive signals
Which of the following actuators is suitable for precise stepwise motion control?
AC motor
Solenoid
Stepper motor
LED
In a switch-based sensor setup, what happens to the output voltage when the switch is closed?
Output equals supply voltage
Output equals zero, with possible oscillations due to bounce
Output becomes negative
Output shows a sine waveform
