Refrigeration System Quiz
Authored by Ranga Tempest
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Professional Development
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What device protects refrigeration system motors from excessive electrical current?
Contactor Relay
Overload Relay
Thermostatic Expansion Valve (TXV)
Condenser Coil
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Why do refrigeration systems use pressure sensors?
To regulate refrigerant flow and prevent system failures
To adjust the speed of the evaporator fan
To detect humidity levels in the refrigerated space
To control the amount of power supplied to the compressor
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A ship's refrigeration system fails to cool properly despite the compressor running. What should be checked first?
Circuit Breaker
Expansion Valve and Refrigerant Levels
Main Power Supply
Condenser Fan Blade Size
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An automatic refrigeration system has both electronic and manual controls. Why is this beneficial?
It allows for manual intervention during automatic failures
It prevents the use of electronic components
It makes the system run continuously without regulation
It eliminates the need for pressure and temperature sensors
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What protects the refrigeration system from electrical overloads and short circuits?
Temperature sensors
Evaporator fan motors
Main Circuit Breaker and Overload Relays
Expansion Valves
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the purpose of closing the suction and discharge valves when shutting down a refrigeration plant?
To prevent refrigerant from flowing back into the compressor
To increase refrigerant pressure in the system
To allow more airflow through the evaporator
To shut down the electrical power supply
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the refrigeration plant is being secured for maintenance, which step should be done first?
Log the shutdown process in the maintenance records
Shut down the compressor and fans
Ventilate the system to prevent refrigerant buildup
Notify personnel and ensure proper PPE is used
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