GCAP Operator 1 exam questions and
answers 2025(graded A+)
1% concentration of Ammonia is equal to what in Parts per Million (PPM)?
A) 10 PPM
B) 100 PPM
C) 1,000 PPM
D) 10,000 PPM - answer D) 10,000 PPM
T or F?
1/2% of Ammonia is a deadly concentration. - answer True
Ammonia is what on the pH Scale?
A) 3.7
B) 5.2
C) 7.0
D) 11.6 - answer D) 11.6
T or F?
More than a 100lbs release of NH3 in 24 hours is a reportable release - answer True
There are four primary types of injury/burns with exposure to liquid Ammonia. Please list
all four. - answer 1. Caustic Burn
2. Thermal Burn
3. Dehydration Burn
4. Respiratory
,T or F?
Ammonia causes cancer. - answer False
T or F?
If Ammonia, in liquid form, makes its way into your eyes there is usually damage that is
irreversible resulting in blindness. - answer True
Most SDS sheets require a rinse/flush to body/eyes for a minimum of how many minutes
when dealing with Ammonia?
A) 2 Minutes
B) 5 Minutes
C) 10 Minutes
D) 15 Minutes - answer D) 15 Minutes
Do you ever want to put liquid water on liquid Ammonia when the refrigerant is at
atmospheric conditions? (Yes or No) - answer No
Can you knock down an Ammonia vapor cloud at atmospheric conditions using water?
(Yes or No) - answer Yes
PEL (Permissible Exposure Limit) for Ammonia, set forth by OSHA, is how many PPM?
A) 10 PPM
B) 50 PPM
C) 300 PPM
D) 1,000 PPM - answer B) 50 PPM
T or F?
PEL for Ammonia tells an operator that they must put on an Ammonia rated respirator
with cartridges if they wanted to stay in that atmosphere. - answer True
,IDLH (Immediately Dangerous To Life And Health) for Ammonia, set forth by OSHA, is
how many PPM?
A) 10 PPM
B) 50 PPM
C) 300 PPM
D) 1,000 PPM - answer C) 300 PPM
LEL (Lower Explosive Limit) starts around what percentage? - answer 15%
UEL (Upper Explosive Limit) ends around what percentage? - answer 28%
The fuel range for pure Ammonia is _____% to _____% - answer 15% to 28%
Can oil mixed with Ammonia increase the risk of a fire if released and an ignition source is
present? (Yes or No) - answer Yes
According to OSHA's book 29CFR (Code of Federal Regulations) Part 1910.134, should an
operator wear contact lenses when dealing with the refrigerant Ammonia? (Yes or No) -
answer No
Should you proceed through a visible cloud of Ammonia? (Yes or No) - answer No
If you see a green diamond with the number 1005 on a transportation vehicle, what is
inside the tank?
A) Carbon Dioxide
B) Ammonia
C) Propane
D) Natural Gas - answer B) Ammonia
What is the fire diamond rating for pure Ammonia?
, Health#:________ Color:_______
Fire#:________ Color:________
Reactivity#:_______ Color:________ - answer Health#:___3_____ Color:__Blue_____
Fire#:___1_____ Color:__Red______
Reactivity#:___0____ Color:___Yellow_____
What are the two primary ways of finding small leaks for Ammonia? - answer Sulfur Sticks
and Litmus Paper
Hydrostatic Expansion will increase pressure how much per degree of Fahrenheit heat
exposure for Ammonia?
A) 10 PSI
B) 40,000 PSI
C) 100 - 150 PSI
D) 1 - 10 PSI - answer C) 100 - 150 PSI
Figure out the volume of this room. Length is 10 feet, width is 14 feet, and height is 20 feet.
A) 44 cubic feet
B) 160 cubic feet
C) 2,800 cubic feet
D) 5,600 cubic feet - answer V = L x W x H
V = 10 x 14 x 20
V = 2,800 cubic feet
A rate is a measure of something to a fixed unit such as time. What is tonnage?
A) Time
B) BTU's
C) Heat transfer in BTU's per time
D) Heat transfer in PSIG per time - answer C) Heat transfer in BTU's per time
answers 2025(graded A+)
1% concentration of Ammonia is equal to what in Parts per Million (PPM)?
A) 10 PPM
B) 100 PPM
C) 1,000 PPM
D) 10,000 PPM - answer D) 10,000 PPM
T or F?
1/2% of Ammonia is a deadly concentration. - answer True
Ammonia is what on the pH Scale?
A) 3.7
B) 5.2
C) 7.0
D) 11.6 - answer D) 11.6
T or F?
More than a 100lbs release of NH3 in 24 hours is a reportable release - answer True
There are four primary types of injury/burns with exposure to liquid Ammonia. Please list
all four. - answer 1. Caustic Burn
2. Thermal Burn
3. Dehydration Burn
4. Respiratory
,T or F?
Ammonia causes cancer. - answer False
T or F?
If Ammonia, in liquid form, makes its way into your eyes there is usually damage that is
irreversible resulting in blindness. - answer True
Most SDS sheets require a rinse/flush to body/eyes for a minimum of how many minutes
when dealing with Ammonia?
A) 2 Minutes
B) 5 Minutes
C) 10 Minutes
D) 15 Minutes - answer D) 15 Minutes
Do you ever want to put liquid water on liquid Ammonia when the refrigerant is at
atmospheric conditions? (Yes or No) - answer No
Can you knock down an Ammonia vapor cloud at atmospheric conditions using water?
(Yes or No) - answer Yes
PEL (Permissible Exposure Limit) for Ammonia, set forth by OSHA, is how many PPM?
A) 10 PPM
B) 50 PPM
C) 300 PPM
D) 1,000 PPM - answer B) 50 PPM
T or F?
PEL for Ammonia tells an operator that they must put on an Ammonia rated respirator
with cartridges if they wanted to stay in that atmosphere. - answer True
,IDLH (Immediately Dangerous To Life And Health) for Ammonia, set forth by OSHA, is
how many PPM?
A) 10 PPM
B) 50 PPM
C) 300 PPM
D) 1,000 PPM - answer C) 300 PPM
LEL (Lower Explosive Limit) starts around what percentage? - answer 15%
UEL (Upper Explosive Limit) ends around what percentage? - answer 28%
The fuel range for pure Ammonia is _____% to _____% - answer 15% to 28%
Can oil mixed with Ammonia increase the risk of a fire if released and an ignition source is
present? (Yes or No) - answer Yes
According to OSHA's book 29CFR (Code of Federal Regulations) Part 1910.134, should an
operator wear contact lenses when dealing with the refrigerant Ammonia? (Yes or No) -
answer No
Should you proceed through a visible cloud of Ammonia? (Yes or No) - answer No
If you see a green diamond with the number 1005 on a transportation vehicle, what is
inside the tank?
A) Carbon Dioxide
B) Ammonia
C) Propane
D) Natural Gas - answer B) Ammonia
What is the fire diamond rating for pure Ammonia?
, Health#:________ Color:_______
Fire#:________ Color:________
Reactivity#:_______ Color:________ - answer Health#:___3_____ Color:__Blue_____
Fire#:___1_____ Color:__Red______
Reactivity#:___0____ Color:___Yellow_____
What are the two primary ways of finding small leaks for Ammonia? - answer Sulfur Sticks
and Litmus Paper
Hydrostatic Expansion will increase pressure how much per degree of Fahrenheit heat
exposure for Ammonia?
A) 10 PSI
B) 40,000 PSI
C) 100 - 150 PSI
D) 1 - 10 PSI - answer C) 100 - 150 PSI
Figure out the volume of this room. Length is 10 feet, width is 14 feet, and height is 20 feet.
A) 44 cubic feet
B) 160 cubic feet
C) 2,800 cubic feet
D) 5,600 cubic feet - answer V = L x W x H
V = 10 x 14 x 20
V = 2,800 cubic feet
A rate is a measure of something to a fixed unit such as time. What is tonnage?
A) Time
B) BTU's
C) Heat transfer in BTU's per time
D) Heat transfer in PSIG per time - answer C) Heat transfer in BTU's per time
