HAC101 Week 7 Quiz Evaporators

After the refrigerant has been charged into the air-conditioning system, rotate the compressor shaft by hand to push out any _______ that may have entered the compressor during the charge process.

Select one:

• Air bubbles

• Dust

• Debris

• Liquid

Tech A states that verifying the repair is performed by post-testing of the air-conditioning system. Tech B states that an electronic leak detector or fluorescent dye testing is used when the system is discharged. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B

Technicians must be ________ certified to handle refrigerants.

Select one:

• ASE 607

• ASE 515

• EPA 609

• EPA 511

What is the minimum amount of time an A/C system should be evacuated for to effectively boil all the water out of the A/C system?

Select one:

• 10 Minutes

• 15 Minutes

• 30 Minutes

• 45 Minutes

________ is the term used to describe the process of making the system perform to its maximum ability and comparing that to specifications.

Select one:

• Air-conditioning testing

• Performance testing

• Evacuation of the system

• Post-testing

The first step in the diagnostic process of the HVAC system is _______.

Select one:

• Diagnosing any faults that are causing the system to operate incorrectly

• Evacuating the air-conditioning system

• Reclaiming the air-conditioning system before any repair or nitrogen testing is required

• Carrying out a performance test of the air-conditioning system

________ is the process of creating a low pressure or vacuum in the air-conditioning system, using a vacuum pump and gauges.

Select one:

• Reclaiming

• Evacuation

• Charging

• Recovering

If the diagnosis of a faulty HVAC system determines that a component of the air-conditioning system is not working properly, such as a faulty cycle switch, then _______ is not needed.

Select one:

• Leak testing

• Reclaiming

• Evacuating

• Charging

_______ the refrigerant before any repair or nitrogen testing is required by the Environmental Protection Agency (EPA), Section 609 of the Clean Air Act.

Select one:

• Leak testing

• Dye testing

• Topping up

• Reclaiming

The proper ________ of an air- conditioning system is important because if the amount of refrigerant is too low or too high, the resulting change in system operating pressure will change the boiling point of the refrigerant.

Select one:

• Charge

• Temperature

• Weight

• Density