Midterm 8 Flashcards
What is the proper name for gauge set?
Manifold
What kind of gauge is the low side gauge?
Compound gauge
What color is the high side gauge?
Red
What color is the low side gauge?
Blue
The low side hose is ________ in color and connects to the __________ line.
Blue
Suction Line
The high side hose is ________ in color and connects to the __________ line.
Red
Liquid line
The low side gauge reads both ________ and __________
PSI
Vacuum
What kind of gauge is the high side gauge?
PSI
What is the normal position of the hand valve on the gauge set?
Front seated
What are the three additional scales found on the gauges?
PSI, Temperature, Vacuum
What does PSI stand for?
Pounds per square inch
What is a perfect vacuum?
30
What color is the vacuum hose?
Yellow
With your gauge set handle on the low side, crack position what would you be doing?
Charging
With both handles in the back seat position, you would be?
Recovering and Pulling a vacuum
When checking the pressure in the system the hand valve should be in the ___________ seat position.
Front seat
Why should you purge the hoses when putting the gauge set on the A/C system?
To remove air out of the hose
PSI, PSIG, and PSIA are all what?
Pressure scales
Name the color of the liquid charging hose?
Red
Name the color of the Vapor charging hose?
Blue
Name the Four basic parts of a refrigeration system and tell the job of each
Compressor - heart of system; low pressure to high pressure gas; pumps refrigerant
Condenser - rejects heat; high pressure gas to high pressure liquid
Meter device - brain of system; regulates amount of refrigerant; high pressure liquid to low pressure liquid
Evaporator - absorbs heat; low pressure liquid to low pressure gas
What is the name of each basic refrigeration line and the state of the refrigerant?
Suction line - low pressure gas
Liquid line - high pressure liquid
Discharge line - high pressure gas
