Midterm 8

Question 1

What is the proper name for gauge set?

Answer 1

Manifold

Question 2

What kind of gauge is the low side gauge?

Answer 2

Compound gauge

Question 3

What color is the high side gauge?

Answer 3

Red

Question 4

What color is the low side gauge?

Answer 4

Blue

Question 5

The low side hose is ________ in color and connects to the __________ line.

Answer 5

Blue
Suction Line

Question 6

The high side hose is ________ in color and connects to the __________ line.

Answer 6

Red
Liquid line

Question 7

The low side gauge reads both ________ and __________

Answer 7

PSI
Vacuum

Question 8

What kind of gauge is the high side gauge?

Answer 8

PSI

Question 9

What is the normal position of the hand valve on the gauge set?

Answer 9

Front seated

Question 10

What are the three additional scales found on the gauges?

Answer 10

PSI, Temperature, Vacuum

Question 11

What does PSI stand for?

Answer 11

Pounds per square inch

Question 12

What is a perfect vacuum?

Answer 12

30

Question 13

What color is the vacuum hose?

Answer 13

Yellow

Question 14

With your gauge set handle on the low side, crack position what would you be doing?

Answer 14

Charging

Question 15

With both handles in the back seat position, you would be?

Answer 15

Recovering and Pulling a vacuum

Question 16

When checking the pressure in the system the hand valve should be in the ___________ seat position.

Answer 16

Front seat

Question 17

Why should you purge the hoses when putting the gauge set on the A/C system?

Answer 17

To remove air out of the hose

Question 18

PSI, PSIG, and PSIA are all what?

Answer 18

Pressure scales

Question 19

Name the color of the liquid charging hose?

Answer 19

Red

Question 20

Name the color of the Vapor charging hose?

Answer 20

Blue

Question 21

Name the Four basic parts of a refrigeration system and tell the job of each

Answer 21

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

Question 22

What is the name of each basic refrigeration line and the state of the refrigerant?

Answer 22

Suction line - low pressure gas
Liquid line - high pressure liquid
Discharge line - high pressure gas