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Basic Refrigeration Flashcards | StudBud
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Basic Refrigeration
Basic Refrigeration
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Quiz for technicians to test their knowledge
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
One of the main functions of the condenser is to:
Superheat the liquid
Change the refrigerant vapor to a liquid
Change the liquid to a vapor
Both 1 and 2
2
Refrigerant "Conditions" refer to which of the following?
Saturated, superheated, or subcooled
None of the above
Pressurized only
In a complete vacuum
3
In an operating system, you should have liquid and vapor in the:
Condenser only
Evaporator and condenser
Evaporator only
Compressor
4
Refrigeration is the movement of heat from a place it is not wanted to a place unobjectionable
False
True
5
Modern refrigerants exists either in:
The liquid state
Answers 1 and 2 are true
The vapor state
None of the above
6
Heat flows from:
hot to cold
up to down
left to right
cold to hot
7
Another name for condenser side pressure is:
Back pressure
Low side pressure
Discharge pressure
Static pressure
8
It is possible to cool air in a house
True
False
9
Superheat always refers to:
A mixture of liquid and vapor
Both (a) and (c)
A liquid refrigerant
A vapor
10
The pressure at which the refrigerant changes state from a vapor to a liquid is the:
Superheat pressure
Back pressure
Condensing pressure
Evaporation pressure
11
A pressure gauge placed anywhere between the metering device and the compressor will read
The low side or evaporating pressure
All of the above
The total pressure
The head pressure
12
The high and low pressures in a refrigeration system are separated by:
The receiver
The metering device
The evaporator
The filter drier
13
Another name for evaporator side pressure is:
High side pressure
Low side pressure
High pressure
Discharge pressure
14
The temperature/pressure chart is only good when the refrigerant is:
In the liquid state only
In the liquid and vapor state mixed
In the vapor state only
In the superheated state only
15
Subcooling always refers to:
A liquid below its saturation temperature
The refrigerant that cools the compressor
The flashing of refrigerant at the metering device
A vapor below its saturation temperature
