CH 6: Hardware Components for Automation

What is the main function of a Control Computer in a Computer Process Control System?

• To convert digital signals to analog signals

• To process and manage input and output devices

• To act as an analog sensor

• To function as a discrete actuator

What is the role of the ADC in the Computer Process Control System?

• To convert analog signals to digital signals

• To convert digital signals to analog signals

• To act as a discrete actuator

• To manage output devices

What does the term "sensor transfer function" refer to?

• The process of transferring data between sensors

• The mathematical relationship between stimulus and output signal

• The physical construction of a sensor

• The calibration of a sensor

Which type of actuator includes electric motors?

• Hydraulic

• Pneumatic

• Electric

• Mechanical

What is the role of the switch in an electromechanical relay?

• To control the coil

• To generate voltage

• To store energy

• To dissipate heat

Which type of actuator is known for high speed operation?

• Hydraulic

• Pneumatic

• Electric

• Mechanical

Which of the following is not a characteristic of pneumatic actuators?

• Compressible

• Low forces

• High speed

• High forces

What is the primary advantage of a double-acting cylinder over a single-acting cylinder?

• Simplicity

• Cost

• Control over both directions of movement

• Size

Which type of cylinder is typically used for applications requiring precise control of movement?

• Single-acting cylinder

• Double-acting cylinder

• Triple-acting cylinder

• Quadruple-acting cylinder

What happens to the spring in a single-acting cylinder when the piston is extended?

• It compresses

• It extends

• It remains unchanged

• It breaks