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WorksheetsACR-206 Chapter 59 test
Total questions: 10
Worksheet time: 5mins
The __________ typically disables the A/C system if pressures fall below 10 psi (69 kPa).
Low-pressure switch
TXV (thermal expansion valve)
Heater control
High-pressure relief
Which of the following is the most common source of abnormal noises arising from the air conditioner?
Evaporator
Compressor
Accumulator
Muffler
Which of the following is the first step in the diagnostic process for air-conditioning systems?
System pressure test
Diagnosis of faults
Performance testing
Check for codes in the computer
A __________ is connected to the air-conditioning refrigerant ports before the performance test begins.
Thermometer
Manifold pressure gauge set
Micron gauge
Safety switch
Which of the following is NOT a method of leak testing?
Vacuum testing
Electronic leak detection
Dye testing
Nitrogen testing
What is the act of removing the refrigerant called?
Reclaiming
Flushing
Recharging
Recycling
The (a) is normally inspected when high-side pressures are too high and the system is not cooling well.
Condenser
Evaporator
Heater/evaporator housing
Drain tube
When cleaning the condenser, what, aside from the shop air, can be used to remove the debris?
Water hose
Drain tube
Oil filter
Nitrogen purging
Which of the following is used to determine what the high- and low-side pressures should be at a given outside temperature and humidity in a properly functioning system?
Reclaim/recycle machine
PT chart
Anemometer
Micron gauge
What detector is sometimes called a "sniffer?"
Dye leak detector
Carbon monoxide detector
Electronic leak detector
Sealant detector
