WorksheetsHW6 Chapter 6 PLC
Total questions: 10
Worksheet time: 2hrs 40mins
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
