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SOS MECHANIC CERTIFICATION - HVAC EXAM
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SOS MECHANIC CERTIFICATION -HVAC EXAM 2024-2025
When installing o rings, avoid using petroleum jelly and silicone.
Use grease!!
Which of the following is true regarding the thermostat?
All of the aforementioned.
Moisture pollution within the air conditioning system may cause
All of the aforementioned.
Which of the following would not be the source of a vehicle's low heater output?
Restriction of leaves is not the proper answer.
When charging from R12 to R134, which component's performance must rise the
most?
condenser
An overcharged air conditioning system can be indicated by
above average gauge readings
The high-side reading is very high. What should you do to correct this?
Remove the blockage and eliminate any debris.
, In an air conditioning system, the machine that removes moisture and heat from the
air
evaporator
The refrigerant line that runs from the compressor to the condenser is
High-pressure gas.
The refrigerant line that runs from the expansion valve to the evaporator is
Low-pressure liquid
The refrigerant line that runs from the evaporator to the expansion valve and then
to the compressor is the
Low-pressure gas
The refrigerant line that connects the condenser to the receiver drier is
High-pressure liquid
The function of the receiver drier pick up tool
All of the aforementioned.
When the blower is on high speed, water vapor droplets stream out of the air duct;
what does this indicate?
The hose is clogged.
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