HW6 Chapter 6 PLC

What is a PLC designed to replace in making logic decisions?

• Switches

• Motor Starters

• Control Relays

• Contactors

Which type of switch is controlled by hand and makes a circuit when pressed?

• Pressure Switch

• Manually Operated Switch

• Selector Switch

• Limit Switch

What type of sensor detects the presence of an object without physical contact?

• Thermocouple

• Capacitive Sensor

• Proximity Sensor

• Photoelectric Sensor

What is used to convert rotational speed into an analog voltage signal for control applications?

• Tachometer Generator

• Flowmeter

• Reed Switch

• Encoder

Which type of sensor operates by detecting a visible or invisible beam of light?

• Capacitive Sensor

• Proximity Sensor

• Photoelectric Sensor

• Thermocouple

What is used to sense temperature changes and is the most widely used temperature sensor?

• Temperature Switch

• Level Switch

• Pressure Switch

• Thermocouple

What type of switch is controlled automatically by factors such as pressure, position, or temperature?

• Temperature Switch

• Pressure Switch

• Level Switch

• Limit Switch

Which type of sensor uses a flexible cable containing tiny fibers to channel light from emitter to receiver?

• Proximity Sensor

• Photoelectric Sensor

• Fiber Optic Sensor

• Capacitive Sensor

What is used to handle heavy power loads that are beyond the capability of control relays?

• Switches

• Contactors

• Motor Starters

• Relays

Which scan technique provides long-range sensing by placing the transmitter and receiver in direct line with each other?

• Retroreflective Scan

• Fiber Optic Scan

• Photoelectric Scan

• Through-Beam Scan