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SOS Mechanic Certification- HVAC questions and answers already graded A+ 2024/2025
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SOS Mechanic Certification- HVAC questions and answers already graded A+ 2024/2025
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SOS Mechanic Certification- HVACWhat should be used when installing o rings
not petroleum jelly
not silicone
use grease!!
which of the following is true about thermostat
all the above
0:03
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0:15
Brainpower
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moisture contamination inside the air conditioning system can cause
all the above
a vehicle has low heater output which of the following would not cause this output
restricted of leaves not the right answer
when charging r12 to r134 the performance of which component must increase the most
condenser
a overcharged air conditioning system is indicated by
above normal gauge readings
the high side reading is too high what should you do to correct this
remove blockagage and clear any debris
in an air conditioning system the unit that removes moisture and heat from the air is the
evaporator
, the refrigerant line going from the compressor to the condenser is the
High pressure gas
the refrigerant line going from the expansion valve to the evaporator is the
Low pressure liquid
the refrigerant line going from the evaporator to the expansion vale and it goes to the
compressor is the
Low pressure gas
the refrigerant line going from the condenser to the receiver drier is the
High pressure liquid
The purpose of the receiver drier pick up tool
all the above
when the blower is on high speed water vapor droplets come out of the air duct what does this
indicate
hose is plugged
Create
if you are checking for a slow leak on a AC system with r12
fully recharge the system before you start to check it
the ambient temperature switch is used to prevent the compressor from operating when
not when the ambient temperature gets too low
overcharging the AC unit will cause
extremely high head pressure
when you replace a AC compressor it is a good practice to
all the above
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