Quiz 8

Question 1

There are several ways to speed up the evacuation process. List four ways that will help to decrease the amount of time to get a system below 500 microns.

Answer 1

Add 4 valve / 4 hose
Add nitrogen
Add trace gas
Add shorter hoses

Question 2

you suspect electroplating has occurred in a system, where would you look and what are you looking for?

Answer 2

Copper plating on the crank shaft

Question 3

List all the tools that can be used to search for leaks on an air conditioning system.

Answer 3

Electric, bubble solution, micro bubble, ultraviolet dye, halide, ultrasonic.

Question 4

What is the position of the suction and discharge valves when checking system pressures?

Answer 4

Cracked off the back

Question 5

What is the best place to check an evaporator for a leak?

Answer 5

Evaporator drain outlet

Question 6

You want to stop refrigerant from entering the compressor from the suction and discharge service valves when the system is off. You would need to place the suction and discharge service valves in which position?

Answer 6

Front seated

Question 7

What are six types of leaks?

Answer 7

Vibration, micro, combination, pressure, temperature, standing.