| Free A.S.E. Study Guide An ASE Study Guide for the Automotive Technician |
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11. Technician A says a variable
displacement compressor uses a
wobble plate to change the piston
stroke. Technician B says a longer
piston stroke would reduce the
refrigerant volume. Who is correct?
displacement compressor uses a
wobble plate to change the piston
stroke. Technician B says a longer
piston stroke would reduce the
refrigerant volume. Who is correct?
16. Technician A says the orifice tube
is located between the condenser
and the evaporator. Technician B
says this is considered a metering
device as it changes refrigerant flow
along with cooling demands.
is located between the condenser
and the evaporator. Technician B
says this is considered a metering
device as it changes refrigerant flow
along with cooling demands.
12. Technician A says an ambient
temperature sensor senses the
outside air temperature. Technician B
says this sensor is a variable resister
used by the automatic control system.
Who is correct?
temperature sensor senses the
outside air temperature. Technician B
says this sensor is a variable resister
used by the automatic control system.
Who is correct?
13. All of these are true about A/C
receiver drier except it:
receiver drier except it:
14. Technician A says the refrigerant
always flows from the top of the A/C
condenser to the bottom. Technician
B says a restriction in an A/C
condenser can cause damage to the
compressor. Who is correct?
always flows from the top of the A/C
condenser to the bottom. Technician
B says a restriction in an A/C
condenser can cause damage to the
compressor. Who is correct?
15. An A/C blower motor only
operates in high speed. Technician A
says there could be a short in the
motors power feed. Technician B says
it may have a faulty blower resister.
Who is correct?
operates in high speed. Technician A
says there could be a short in the
motors power feed. Technician B says
it may have a faulty blower resister.
Who is correct?
17. A vehicle blows warm air only
when sitting at stop lights. The least-
likely cause of this would be:
when sitting at stop lights. The least-
likely cause of this would be:
18. The carpet is wet on the
passengers side of a vehicle.
Technician A says this may be caused
a leaking heater core. Technician B
says this could be caused by a
clogged evaporator case drip tube.
Who is correct?
passengers side of a vehicle.
Technician A says this may be caused
a leaking heater core. Technician B
says this could be caused by a
clogged evaporator case drip tube.
Who is correct?
19. Technician A says an accumulator
is a component incorporated into a
(TX) expansion valve type system.
Technician B says a receiver drier is
a component incorporated into a
cycling clutch type system.
Who is correct?
is a component incorporated into a
(TX) expansion valve type system.
Technician B says a receiver drier is
a component incorporated into a
cycling clutch type system.
Who is correct?
20. A TXV (thermal expansion valve)
system blows cold air only for about
five minutes before it goes warm.
Technician A says this could be
caused by a low system charge.
Technician B says there could be
moisture in the system.
Who is correct?
system blows cold air only for about
five minutes before it goes warm.
Technician A says this could be
caused by a low system charge.
Technician B says there could be
moisture in the system.
Who is correct?
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| A-7 Heating and Air Conditioning Practice Test |
