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12 Questions

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Refrigeration System Operation Quiz

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Questions and Answers

What is responsible for controlling the amount of refrigerant circulated per unit time in a refrigeration system?

Compressor capacity (correct)

Temperature-Actuated Control

Humidity

Evaporator capacity

How can the capacity of a compressor in a refrigeration system be regulated?

By regulating evaporator capacity

By cycling it on and off (correct)

By changing the pressure

By adjusting the thermostat

Which component is used to detect the temperature of the refrigerated medium in a refrigeration system?

Evaporator coil

Bimetal element

Thermostat (correct)

Pressure sensor

In what way can a compressor capacity be adjusted besides cycling it on and off?

By employing variable speed control Signup and view all the answers

How does the system capacity control influence the operation of a refrigeration system?

By adjusting compressor capacity Signup and view all the answers

Which type of control directly adjusts the compressor capacity in a refrigeration system?

Multi-stage control Signup and view all the answers

What is the primary function of a thermostat in a refrigeration system?

To start and stop the compressor based on temperature changes Signup and view all the answers

What is the purpose of the temperature differential setting on a thermostat?

To keep the compressor from short-cycling Signup and view all the answers

How can a filled system thermometer be used to control the compressor motor?

By directly controlling the power supply to the compressor motor Signup and view all the answers

What type of signal can electronic thermostats send to control systems?

Both analog and digital signals Signup and view all the answers

What is the purpose of an unloader on a compressor?

To reduce the capacity of the compressor when needed Signup and view all the answers

Which type of thermostat can directly control the power supply to small compressor motors?

Bimetal thermostats Signup and view all the answers