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New Mexico Journeyman Refrigeration JR Exam
||Verified Exam!!!||Actual Test Questions and Correct
Answers With Rationales LATEST THIS
YEAR||NEWEST EXAM!!!
What is the purpose of installing a crank case heater? -
Answer-To ensure liquid refrigerant does not migrate
during low ambient
What valve is located on the outlet of the receiver? -
Answer-king valve
At what location in a regrigeration sytem would a tech
install an oil sperator? (in between what 2 mojor
components) - Answer-compressor and condenser
to protect the compressor from damage when refrigerant
loss occurs due to a large leak, a _____________ switch
should be installed - Answer-pressure
a CPR valve________ on rise of_____ presure - Answer-
close/ outlet
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an EPR valve ____________ on rise of _________
pressure - Answer-opens/ inlet
Why would a tech incorporate EPR valves into a
refrigeration system? - Answer-Multiple temperature and
multiple evaporators
The entire refrigerant charge of a system should only fill
what percentage of the receiver?
a) 50%
b) 60%
c) 80%
d) 100%
e) 110% - Answer-c)
What type of valve can be installed between the receiver
and the pressure relief valve(s)?
a) ball valve
b) gate valve
c) three-way valve
d) emergency valve
,3|Page
e) no valve - Answer-c)
2 types of pressure relief valves found on refrigeration
systems: - Answer-spring valve
one time
How does a pilot perated liguid line solenoid valve
operate? - Answer-Signal sent for system pressure to start
and stop flow
Air conditioning systems:
a) initiate defrost with a defrost clock
b) initiate defrost with a pressure switch
c) defrost during off cycle when the thermostat is satisfied
d) do not require defrost - Answer-d)
A low pressure switch will________ on rise in pressure -
Answer-close
A high pressure safety switch will ______ on rise in head
pressure - Answer-open
, 4|Page
A fan cycling switch will _______ on rise in head pressure
- Answer-close
When the box temperature is satisfied, the thermostat
contacts on the thermostat will_______ - Answer-open
A hot pull down occurs when:
a) there is excessive ice on the evaporator
b) the condenser has been flooded
c) the metering device is starving the evaporator
d) the temperature of the load is high and the compressor
has to run for long periods of time to lower the load
d) all of the above - Answer-d)
The receiver is located in the: - Answer-Liquid line
The solenoid valve is used to control fluid flow. This valve:
a) has a slow reaction time
b) has a fast or snap action
c) is used to control fan speed
New Mexico Journeyman Refrigeration JR Exam
||Verified Exam!!!||Actual Test Questions and Correct
Answers With Rationales LATEST THIS
YEAR||NEWEST EXAM!!!
What is the purpose of installing a crank case heater? -
Answer-To ensure liquid refrigerant does not migrate
during low ambient
What valve is located on the outlet of the receiver? -
Answer-king valve
At what location in a regrigeration sytem would a tech
install an oil sperator? (in between what 2 mojor
components) - Answer-compressor and condenser
to protect the compressor from damage when refrigerant
loss occurs due to a large leak, a _____________ switch
should be installed - Answer-pressure
a CPR valve________ on rise of_____ presure - Answer-
close/ outlet
,2|Page
an EPR valve ____________ on rise of _________
pressure - Answer-opens/ inlet
Why would a tech incorporate EPR valves into a
refrigeration system? - Answer-Multiple temperature and
multiple evaporators
The entire refrigerant charge of a system should only fill
what percentage of the receiver?
a) 50%
b) 60%
c) 80%
d) 100%
e) 110% - Answer-c)
What type of valve can be installed between the receiver
and the pressure relief valve(s)?
a) ball valve
b) gate valve
c) three-way valve
d) emergency valve
,3|Page
e) no valve - Answer-c)
2 types of pressure relief valves found on refrigeration
systems: - Answer-spring valve
one time
How does a pilot perated liguid line solenoid valve
operate? - Answer-Signal sent for system pressure to start
and stop flow
Air conditioning systems:
a) initiate defrost with a defrost clock
b) initiate defrost with a pressure switch
c) defrost during off cycle when the thermostat is satisfied
d) do not require defrost - Answer-d)
A low pressure switch will________ on rise in pressure -
Answer-close
A high pressure safety switch will ______ on rise in head
pressure - Answer-open
, 4|Page
A fan cycling switch will _______ on rise in head pressure
- Answer-close
When the box temperature is satisfied, the thermostat
contacts on the thermostat will_______ - Answer-open
A hot pull down occurs when:
a) there is excessive ice on the evaporator
b) the condenser has been flooded
c) the metering device is starving the evaporator
d) the temperature of the load is high and the compressor
has to run for long periods of time to lower the load
d) all of the above - Answer-d)
The receiver is located in the: - Answer-Liquid line
The solenoid valve is used to control fluid flow. This valve:
a) has a slow reaction time
b) has a fast or snap action
c) is used to control fan speed
