GCAP Industrial Ammonia
Refrigeration Training non flashcards
,1/2 % of Ammonia is it deadly concentration.
A. True
B. False - CORRECT ANSWER A. True (5,000)PPM
1% concentration of Ammonia is equal to what in parts per million?
A. 10 PPM
B. 100 PPM
C. 1,000 PPM
D. 10,000 PPM - CORRECT ANSWER D. 10,000 PPM
100°C is equal to - CORRECT ANSWER 212°F F=(C x 1.8) + 32. F=100 x 1.8 + 32 = 212°F
181 PSIG equals what pressure in PSIA? - CORRECT ANSWER [PSIG to PSIA = +14.7]
181+14.7=195.7 PSIA
54 PSIA equals what pressure in PSIG? - CORRECT ANSWER [PSIA to PSIG = -14.7] 54-
14.7=39.3 PSIG
56°F is equal to what in Celsius? - CORRECT ANSWER [C=(F-32) / 1.8] 56 -32
=24/1.8=13.3°C
A cold storage room is 150 feet long by 80 feet wide by 35 feet high what is the volume of
this room - CORRECT ANSWER 150 x 80 x35 =420,000 cubic feet
A compressor is considered a/an? - CORRECT ANSWER Volume reducer.
A compressor is probably matched with a drive motor on a system that works at a -10°F
evaporating temperature. If the room temperature is allowed to go up to +30°F and then is
, pulled back down to -10°F then - CORRECT ANSWER The drive motor may pull more ramps
while pulling down, the compressor efficiently will drop while pulling down.
A condenser converts the refrigerant from __________to___________ when it removes
heat. - CORRECT ANSWER Gas to liquid
A high-pressure cut out switch - CORRECT ANSWER Should never be jumped
A home air-conditioner is rated to remove 24,000 BTUs in one hour. What is the tonnage
rating?
A. 1 Ton
B. 2 Ton
C. 3 Ton
D. 4 Ton - CORRECT ANSWER B. 2 Ton. (12,000 BTUs equals one hour. 12,000 x 2 = 24,000
BTU's = 2 ton)
A low temperature ammonia booster compressor normally operates with a discharge
temperature of 120°F. The temperature of the discharge vapor suddenly drops to 80°F. What
is indicated? - CORRECT ANSWER There is possible liquid in the suction line
A Pressure gauge is measuring an area of 1 square inch, and there is a force of 30 pounds on
the area. What is the pressure? - CORRECT ANSWER [P=F/A] 30/1 =30 PSI
A rate is a measure of something to a fixed unit such as time. What is tonnage?
Refrigeration Training non flashcards
,1/2 % of Ammonia is it deadly concentration.
A. True
B. False - CORRECT ANSWER A. True (5,000)PPM
1% concentration of Ammonia is equal to what in parts per million?
A. 10 PPM
B. 100 PPM
C. 1,000 PPM
D. 10,000 PPM - CORRECT ANSWER D. 10,000 PPM
100°C is equal to - CORRECT ANSWER 212°F F=(C x 1.8) + 32. F=100 x 1.8 + 32 = 212°F
181 PSIG equals what pressure in PSIA? - CORRECT ANSWER [PSIG to PSIA = +14.7]
181+14.7=195.7 PSIA
54 PSIA equals what pressure in PSIG? - CORRECT ANSWER [PSIA to PSIG = -14.7] 54-
14.7=39.3 PSIG
56°F is equal to what in Celsius? - CORRECT ANSWER [C=(F-32) / 1.8] 56 -32
=24/1.8=13.3°C
A cold storage room is 150 feet long by 80 feet wide by 35 feet high what is the volume of
this room - CORRECT ANSWER 150 x 80 x35 =420,000 cubic feet
A compressor is considered a/an? - CORRECT ANSWER Volume reducer.
A compressor is probably matched with a drive motor on a system that works at a -10°F
evaporating temperature. If the room temperature is allowed to go up to +30°F and then is
, pulled back down to -10°F then - CORRECT ANSWER The drive motor may pull more ramps
while pulling down, the compressor efficiently will drop while pulling down.
A condenser converts the refrigerant from __________to___________ when it removes
heat. - CORRECT ANSWER Gas to liquid
A high-pressure cut out switch - CORRECT ANSWER Should never be jumped
A home air-conditioner is rated to remove 24,000 BTUs in one hour. What is the tonnage
rating?
A. 1 Ton
B. 2 Ton
C. 3 Ton
D. 4 Ton - CORRECT ANSWER B. 2 Ton. (12,000 BTUs equals one hour. 12,000 x 2 = 24,000
BTU's = 2 ton)
A low temperature ammonia booster compressor normally operates with a discharge
temperature of 120°F. The temperature of the discharge vapor suddenly drops to 80°F. What
is indicated? - CORRECT ANSWER There is possible liquid in the suction line
A Pressure gauge is measuring an area of 1 square inch, and there is a force of 30 pounds on
the area. What is the pressure? - CORRECT ANSWER [P=F/A] 30/1 =30 PSI
A rate is a measure of something to a fixed unit such as time. What is tonnage?
