ESCO HVAC FINAL EXAM QUESTIONS
AND ANSWERS 100% PASS
a liquid to suction heat exchanger is often used to - ✔✔increase liquid
subcooling
the term refrigerant conditions refer to which of the following -
✔✔saturated, superheat, or subcooling refrigerant
the component in the refrigeration system used to catch and prevent liquid
from entering the compressor is called - ✔✔the accumulator
an air conditioning system or heat pump must have - ✔✔400-450 CUBIC
FEET OF AIR PER MIN ACROSS THE EVAPORATOR COIL.
the refrigerant charge in a txv remote bulb or power element must -
✔✔have similar characteristics to the refrigerant in the system
1
100% Pass Guarantee Katelyn Whitman, All Rights
, the remote bulb of a txv should be fastened to the - ✔✔outlet of the
ecaporator
which of the following is true, of a solenoid valve in a pump down system -
✔✔it is located before the metering device
the evaporator temperature on an air conditioning system should be -
✔✔40 - 50 degrees F
the second-best way to charge a capillary tube system is - ✔✔use the
superheat charging table or curve
a partially clogged capillary tube can cause - ✔✔a starved evaporator
the purpose of the liquid pressure amplification is to - ✔✔help prevent
flashing and increase subcooling
the pressure at which the refrigerant changes state, from a vapor to a liquid
is the - ✔✔condensing pressure
the basic components of a refrigeration system are - ✔✔compressor,
discharge line, receiver, metering device, evaporator, and suction line
2
100% Pass Guarantee Katelyn Whitman, All Rights
AND ANSWERS 100% PASS
a liquid to suction heat exchanger is often used to - ✔✔increase liquid
subcooling
the term refrigerant conditions refer to which of the following -
✔✔saturated, superheat, or subcooling refrigerant
the component in the refrigeration system used to catch and prevent liquid
from entering the compressor is called - ✔✔the accumulator
an air conditioning system or heat pump must have - ✔✔400-450 CUBIC
FEET OF AIR PER MIN ACROSS THE EVAPORATOR COIL.
the refrigerant charge in a txv remote bulb or power element must -
✔✔have similar characteristics to the refrigerant in the system
1
100% Pass Guarantee Katelyn Whitman, All Rights
, the remote bulb of a txv should be fastened to the - ✔✔outlet of the
ecaporator
which of the following is true, of a solenoid valve in a pump down system -
✔✔it is located before the metering device
the evaporator temperature on an air conditioning system should be -
✔✔40 - 50 degrees F
the second-best way to charge a capillary tube system is - ✔✔use the
superheat charging table or curve
a partially clogged capillary tube can cause - ✔✔a starved evaporator
the purpose of the liquid pressure amplification is to - ✔✔help prevent
flashing and increase subcooling
the pressure at which the refrigerant changes state, from a vapor to a liquid
is the - ✔✔condensing pressure
the basic components of a refrigeration system are - ✔✔compressor,
discharge line, receiver, metering device, evaporator, and suction line
2
100% Pass Guarantee Katelyn Whitman, All Rights
