Sensors and actuators

Which type of sensor produces continuous output signals, usually in the form of a voltage?

• Digital sensors

• Active sensors

• Analogue sensors

• Passive sensors

What type of sensor produces discrete output signals, such as 1s for high signals and 0s for low signals?

• Analogue sensors

• Digital sensors

• Active sensors

• Passive sensors

Which sensors transmit a signal into the environment and measure the response that comes back?

• Passive sensors

• Analogue sensors

• Digital sensors

• Active sensors

What type of sensor monitors changes in the environment, such as a temperature sensor?

• Active sensors

• Passive sensors

• Digital sensors

• Analogue sensors

What is the primary function of an actuator?

• To convert physical movement into an electrical signal

• To turn an electrical, mechanical, or environmental signal into a physical movement

• To store electrical energy for later use

• To measure environmental conditions

Which type of actuator produces and/or responds to continuous output signals?

• Digital actuators

• Passive actuators

• Analogue actuators

• Active actuators

What distinguishes digital actuators from analogue actuators?

• Digital actuators require no energy supply

• Digital actuators produce and/or respond to discrete output signals

• Digital actuators introduce new energy into a system

• Digital actuators produce continuous output signals

Which type of actuator does not require an external energy supply?

• Active actuators

• Analogue actuators

• Digital actuators

• Passive actuators

Which of the following is an application of sensors and actuators in control systems?

• Switching systems for machine safety control

• Temperature control in HVAC systems

• Data storage in cloud computing

• Financial forecasting in banking

What type of sensing is used for vehicles and automation systems?

• Proximity sensing

• Temperature sensing

• Humidity sensing

• Pressure sensing