FADO- Pump Operator Exam Study
Questions with 100% Correct Answers
What is the concentration % for Class A foam? Correct Answer: 0.1-1%
What is the concentration % for Class B foam? Correct Answer: 3-6%
NFPA standard of the RED bonnet of a fire hydrant? Correct Answer: Below 500
GPM (Inadequate)
NFPA standard of the ORANGE bonnet of a fire hydrant? Correct Answer: 500-
999 GPM (Marginally Adequate)
NFPA standard of the GREEN bonnet of a fire hydrant? Correct Answer: 1,000-
1,499 GPM (Good for residential areas)
NFPA standard of the BLUE bonnet of a fire hydrant? Correct Answer: 1,500+
(Excelent flow)
(NFPA 1911) Water temp range for fire temp test? Correct Answer: 35-90
degrees
What is the formula for the Nozzle Reaction (NR) of a Smooth Bore (SB)? Correct
Answer: 1.57 x d^2 x NP
What is the depth of water that can be used for a low-level strainer? Correct
Answer: 24 inches
What is the maximum length that can be used for hard suction during drafting
operations? Correct Answer: 20ft. (2-10ft. sections)
What is needed for a standpipe that has over 175psi? Correct Answer: Pressure
standpipe relief valve
, What is the flow pressure for a sprinkler system? Correct Answer: 100psi
What is the formula for the Nozzle Reaction (NR) of a fog (combination) nozzle?
Correct Answer: 0.0505 x GPM x √NP
What is the GPM for SB if NP is 50psi? Correct Answer: 29.7 x d^2 x √NP
What is the formula for Elevation Loss? Correct Answer: 1 ft = approx 0.5psi
(Subtract the first floor from calculations, multiply by 10ft, and multiply by 0.5 psi)
What NFPA guideline is for Standpipes? Correct Answer: NFPA 14
What NFPA guideline is for Sprinkler Systems? Correct Answer: NFPA 13
What is the ambient temp for refractory foam? Correct Answer: 50 degrees or
greater
What is the subtract 10 method with 2.5in hose Correct Answer: The first two
digits in GPM, subtract 10, equals your FL/per 100ft
200gpm (20) - 10
FL = 10psi/100ft
What is the FL for appliances 350 GPM or greater? Correct Answer: 10psi
What is the FL for Master Stream Devices? (350 GPM or greater) Correct Answer:
25psi
Ch.5-
Questions with 100% Correct Answers
What is the concentration % for Class A foam? Correct Answer: 0.1-1%
What is the concentration % for Class B foam? Correct Answer: 3-6%
NFPA standard of the RED bonnet of a fire hydrant? Correct Answer: Below 500
GPM (Inadequate)
NFPA standard of the ORANGE bonnet of a fire hydrant? Correct Answer: 500-
999 GPM (Marginally Adequate)
NFPA standard of the GREEN bonnet of a fire hydrant? Correct Answer: 1,000-
1,499 GPM (Good for residential areas)
NFPA standard of the BLUE bonnet of a fire hydrant? Correct Answer: 1,500+
(Excelent flow)
(NFPA 1911) Water temp range for fire temp test? Correct Answer: 35-90
degrees
What is the formula for the Nozzle Reaction (NR) of a Smooth Bore (SB)? Correct
Answer: 1.57 x d^2 x NP
What is the depth of water that can be used for a low-level strainer? Correct
Answer: 24 inches
What is the maximum length that can be used for hard suction during drafting
operations? Correct Answer: 20ft. (2-10ft. sections)
What is needed for a standpipe that has over 175psi? Correct Answer: Pressure
standpipe relief valve
, What is the flow pressure for a sprinkler system? Correct Answer: 100psi
What is the formula for the Nozzle Reaction (NR) of a fog (combination) nozzle?
Correct Answer: 0.0505 x GPM x √NP
What is the GPM for SB if NP is 50psi? Correct Answer: 29.7 x d^2 x √NP
What is the formula for Elevation Loss? Correct Answer: 1 ft = approx 0.5psi
(Subtract the first floor from calculations, multiply by 10ft, and multiply by 0.5 psi)
What NFPA guideline is for Standpipes? Correct Answer: NFPA 14
What NFPA guideline is for Sprinkler Systems? Correct Answer: NFPA 13
What is the ambient temp for refractory foam? Correct Answer: 50 degrees or
greater
What is the subtract 10 method with 2.5in hose Correct Answer: The first two
digits in GPM, subtract 10, equals your FL/per 100ft
200gpm (20) - 10
FL = 10psi/100ft
What is the FL for appliances 350 GPM or greater? Correct Answer: 10psi
What is the FL for Master Stream Devices? (350 GPM or greater) Correct Answer:
25psi
Ch.5-
