GCAP 2023 ASSESMENT TEST WITH
CORRECT QUESTIONS AND ANSWERS.
1. A refrigerant line contains Ammonia at the following conditions: 80F, 120 PSIG - CORRECT
ANSWERS.✔️✔️The line contains vapor
2. A low temperature Ammonia booster compressor normally operates with a discharge
temperature of 120F. The temperature of the discharge vapor suddenly drops to 80F. What is
indicated? - CORRECT ANSWERS.✔️✔️There is possibly liquid in the suction line
3. Where can oil be drained from an Ammonia system - CORRECT ANSWERS.✔️✔A ️ ll the above
4. the high pressure receiver, the low pressure receiver, oil pots and some evaporators
5. for each pound of water evaporated, an evaporative condenser rejects - CORRECT
ANSWERS.✔️✔️970 to 1057 BTU's
6. A back pressure regulator is - CORRECT ANSWERS.✔️✔️a pressure controller
7. The pressure/ temperature relationship for ammonia, obtained from a PT chart, is only valid
when the ammonia in the section you are metering is - CORRECT ANSWERS.✔️✔️in a saturated
condition
8. An ammonia liquid line has liquid trapped and it's temp is starting to rise. How much will the
PSIG pressure rise for every one degree F of heat exposure? (hydrostatic pressure increase) -
CORRECT ANSWERS.✔️✔️100 to 150 psi
9. How are temperature and heat related - CORRECT ANSWERS.✔️✔️temperature is a measure of
the intensity of the heat in an object
10. what fluid friction or vapor resistance sometimes known as line loss or pressure drop - CORRECT
ANSWERS.✔️✔️the loss of pressure as the fluid/ vapor interacts with inner walls of the pipe
, 11. in a recirculation system where is it important to keep a constant pump pressure - CORRECT
ANSWERS.✔️✔️at the metering valve evaporator inlet
12. A home air conditioner is rated to remove 24,000 BTU's in 1 hour. What is its tonage - CORRECT
ANSWERS.✔️✔️2 ton
13. what is the king valve - CORRECT ANSWERS.✔️✔️first liquid manual closing valve leaving the
HPR
14. calculate the compression ratio from the following information:
15. suction pressure 33 PSIG Discharge Pressure 181 PSIG - CORRECT ANSWERS.✔️✔️4.10:1
16. What pressure scale must be used to calculate a compression ratio - CORRECT
ANSWERS.✔️✔️PSIA
17. Approximately how many BTU's does it take to convert 1 pound of liquid water at 212F to steam
at 212F - CORRECT ANSWERS.✔️✔️970 BTU's
18. Approximately how many BTU's does it take to melt one pound of ice to water at 32F - CORRECT
ANSWERS.✔️✔️144 BTU's
19. An example of how a lava lamp works would be an example of what type of heat transfer -
CORRECT ANSWERS.✔️✔️All the above: Radiant, conduction, convection
20. what is specific heat (Cp) - CORRECT ANSWERS.✔️✔️it is the exact amount of heat that must be
transferred to change 1 pound of a substance by 1F
21. where should a superheated gas exist in all refrigeration systems - CORRECT
ANSWERS.✔️✔️inlet of compressor
22. where is the worst place to have a leak - CORRECT ANSWERS.✔️✔️high side liquid
CORRECT QUESTIONS AND ANSWERS.
1. A refrigerant line contains Ammonia at the following conditions: 80F, 120 PSIG - CORRECT
ANSWERS.✔️✔️The line contains vapor
2. A low temperature Ammonia booster compressor normally operates with a discharge
temperature of 120F. The temperature of the discharge vapor suddenly drops to 80F. What is
indicated? - CORRECT ANSWERS.✔️✔️There is possibly liquid in the suction line
3. Where can oil be drained from an Ammonia system - CORRECT ANSWERS.✔️✔A ️ ll the above
4. the high pressure receiver, the low pressure receiver, oil pots and some evaporators
5. for each pound of water evaporated, an evaporative condenser rejects - CORRECT
ANSWERS.✔️✔️970 to 1057 BTU's
6. A back pressure regulator is - CORRECT ANSWERS.✔️✔️a pressure controller
7. The pressure/ temperature relationship for ammonia, obtained from a PT chart, is only valid
when the ammonia in the section you are metering is - CORRECT ANSWERS.✔️✔️in a saturated
condition
8. An ammonia liquid line has liquid trapped and it's temp is starting to rise. How much will the
PSIG pressure rise for every one degree F of heat exposure? (hydrostatic pressure increase) -
CORRECT ANSWERS.✔️✔️100 to 150 psi
9. How are temperature and heat related - CORRECT ANSWERS.✔️✔️temperature is a measure of
the intensity of the heat in an object
10. what fluid friction or vapor resistance sometimes known as line loss or pressure drop - CORRECT
ANSWERS.✔️✔️the loss of pressure as the fluid/ vapor interacts with inner walls of the pipe
, 11. in a recirculation system where is it important to keep a constant pump pressure - CORRECT
ANSWERS.✔️✔️at the metering valve evaporator inlet
12. A home air conditioner is rated to remove 24,000 BTU's in 1 hour. What is its tonage - CORRECT
ANSWERS.✔️✔️2 ton
13. what is the king valve - CORRECT ANSWERS.✔️✔️first liquid manual closing valve leaving the
HPR
14. calculate the compression ratio from the following information:
15. suction pressure 33 PSIG Discharge Pressure 181 PSIG - CORRECT ANSWERS.✔️✔️4.10:1
16. What pressure scale must be used to calculate a compression ratio - CORRECT
ANSWERS.✔️✔️PSIA
17. Approximately how many BTU's does it take to convert 1 pound of liquid water at 212F to steam
at 212F - CORRECT ANSWERS.✔️✔️970 BTU's
18. Approximately how many BTU's does it take to melt one pound of ice to water at 32F - CORRECT
ANSWERS.✔️✔️144 BTU's
19. An example of how a lava lamp works would be an example of what type of heat transfer -
CORRECT ANSWERS.✔️✔️All the above: Radiant, conduction, convection
20. what is specific heat (Cp) - CORRECT ANSWERS.✔️✔️it is the exact amount of heat that must be
transferred to change 1 pound of a substance by 1F
21. where should a superheated gas exist in all refrigeration systems - CORRECT
ANSWERS.✔️✔️inlet of compressor
22. where is the worst place to have a leak - CORRECT ANSWERS.✔️✔️high side liquid
