#1
What is the purpose of the condenser in a refrigeration system?
To cool and condense the refrigerant vapor into liquid
ExplanationCondenses vapor to liquid
#2
What is the main function of the expansion valve in a refrigeration system?
To control the flow of refrigerant into the evaporator
ExplanationControls refrigerant flow
#3
What is the purpose of the evaporator in a refrigeration system?
To cool and evaporate the refrigerant
ExplanationCools and evaporates refrigerant
#4
What is the purpose of a sight glass in a refrigeration system?
To indicate the level of the refrigerant
ExplanationIndicates refrigerant level
#5
What does the term 'superheat' refer to in refrigeration?
The temperature of the refrigerant vapor above its boiling point
ExplanationTemperature above boiling point
#6
Which of the following refrigerants is classified as a 'natural' refrigerant?
Ammonia (R-717)
ExplanationNatural refrigerant
#7
What is the purpose of an accumulator in a refrigeration system?
To store excess refrigerant
ExplanationStores excess refrigerant
#8
Why is it important to properly size the refrigeration system components?
To ensure the system operates efficiently
ExplanationEfficient system operation
#9
Which of the following is a common refrigerant leak detection method?
All of the above
ExplanationVarious leak detection methods
#10
Which of the following statements about refrigerant safety is true?
Refrigerants should only be handled by trained professionals due to their toxicity and flammability
ExplanationHandled by trained professionals
#11
What safety precautions should be taken when working with refrigerants?
All of the above
ExplanationComprehensive safety precautions
#12
What safety precautions should be taken when brazing refrigeration system components?
All of the above
ExplanationComprehensive safety precautions