HVAC Quiz

HVAC Quiz

University

5 Qs

quiz-placeholder

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HVAC Quiz

HVAC Quiz

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

Robert Vaughn

Used 3+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Technician A says the micron gauge is used in conjunction with the mechanical pressure gauge on your air-conditioning machine. Technician B says the micron gauge is able to measure vacuum very precisely. Who is correct?

Neither technician
Both technicians
Technician B
Technician A

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Technician A says the receiver/drier or accumulator needs to be removed and inspected whenever there are leaks or the desiccant is failing to dry the refrigerant. Technician B says the receiver/drier or accumulator does not require any oil to be added when replacing. Who is correct?

Both Technicians
Technician A
Neither Technician
Technician B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT correct concerning inspecting, testing, and replacing the compressor clutch?

a. Typically, this component is checked using a DVOM.

b. The technician needs to determine whether the clutch coil is receiving full power and ground.

c. If it is, but still will not turn on, the clutch coil should be checked for high resistance.

d. If the resistance is too high according to the service information, it needs to be replaced; this number is usually 300-500 ohms.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT correct concerning a TXV?

a. If stuck open, the high side pressures would be low and the low-side pressures would be high.

b. An open-ended wrench should be used when working with nuts and bolts on the TXV and related air conditioner lines.

c. Typically, the TXV is mounted on the front of the evaporator.

d. Refer to the service information for the precise process of removing, inspecting and installing a TXV.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is correct concerning the evaporator housing water drain?

a. As the air-conditioning system is running, the evaporator will sweat water throughout the day.

b. A drain hose is connected to the evaporator housing and exits through the vehicle's firewall.

c. Both A and B

d. Neither A nor B

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