What should be used when installing o rings - ANSWER not petroleum jelly
not silicone
use grease!!
which of the following is true about thermostat - ANSWER all the above
moisture contamination inside the air conditioning system can cause - ANSWER all the
above
a vehicle has low heater output which of the following would not cause this output - AN-
SWER restricted of leaves not the right answer
when charging r12 to r134 the performance of which component must increase the most -
ANSWER condenser
a overcharged air conditioning system is indicated by - ANSWER above normal gauge
readings
the high side reading is too high what should you do to correct this - ANSWER remove
blockagage and clear any debris
in an air conditioning system the unit that removes moisture and heat from the air is the -
ANSWER evaporator
1
, the refrigerant line going from the compressor to the condenser is the - ANSWER High
pressure gas
the refrigerant line going from the expansion valve to the evaporator is the - ANSWER
Low pressure liquid
the refrigerant line going from the evaporator to the expansion vale and it goes to the com-
pressor is the - ANSWER Low pressure gas
the refrigerant line going from the condenser to the receiver drier is the - ANSWER High
pressure liquid
The purpose of the receiver drier pick up tool - ANSWER all the above
when the blower is on high speed water vapor droplets come out of the air duct what does
this indicate - ANSWER hose is plugged
Create
if you are checking for a slow leak on a AC system with r12 - ANSWER fully recharge the
system before you start to check it
the ambient temperature switch is used to prevent the compressor from operating when -
ANSWER not when the ambient temperature gets too low
overcharging the AC unit will cause - ANSWER extremely high head pressure
when you replace a AC compressor it is a good practice to - ANSWER all the above
2
not silicone
use grease!!
which of the following is true about thermostat - ANSWER all the above
moisture contamination inside the air conditioning system can cause - ANSWER all the
above
a vehicle has low heater output which of the following would not cause this output - AN-
SWER restricted of leaves not the right answer
when charging r12 to r134 the performance of which component must increase the most -
ANSWER condenser
a overcharged air conditioning system is indicated by - ANSWER above normal gauge
readings
the high side reading is too high what should you do to correct this - ANSWER remove
blockagage and clear any debris
in an air conditioning system the unit that removes moisture and heat from the air is the -
ANSWER evaporator
1
, the refrigerant line going from the compressor to the condenser is the - ANSWER High
pressure gas
the refrigerant line going from the expansion valve to the evaporator is the - ANSWER
Low pressure liquid
the refrigerant line going from the evaporator to the expansion vale and it goes to the com-
pressor is the - ANSWER Low pressure gas
the refrigerant line going from the condenser to the receiver drier is the - ANSWER High
pressure liquid
The purpose of the receiver drier pick up tool - ANSWER all the above
when the blower is on high speed water vapor droplets come out of the air duct what does
this indicate - ANSWER hose is plugged
Create
if you are checking for a slow leak on a AC system with r12 - ANSWER fully recharge the
system before you start to check it
the ambient temperature switch is used to prevent the compressor from operating when -
ANSWER not when the ambient temperature gets too low
overcharging the AC unit will cause - ANSWER extremely high head pressure
when you replace a AC compressor it is a good practice to - ANSWER all the above
2
