MASTER PLUMBING WSSC QUESTIONS WITH DETAILED
VERIFIED AND 100% ACCURATE ANSWERS
Waste water discharged into the building drainage system shall not be
over _______ *F Correct Answers 140
A water tank holds 50 gallons of water. How much does the 50 gallons
of water weigh? Correct Answers 417 lbs
Exterior walls may be notched to a depth exceeding _______________
percent of its width. Correct Answers 25
According to the WSSC PFGC, a full flow building water service valve
shall be installed within _____ feet of where the water service enters the
building. Correct Answers 3'
According to the WSSC PFGC, water meters installed inside of
buildings shall be located in an area capable of maintaining _____ *F.
Correct Answers 50
In Prince George and Montgomery County, water service piping shall be
not less than _____ inches below grade. Correct Answers 30
A cylindrical tank is 22 inches in diameter and 5 feet tall. How many
gallons of water will it hold? Correct Answers 98
The best method of backflow protection is an? Correct Answers Air-gap
, Horizontal drainage piping 4 inches in diameter shall have a minimum
slope of _____ per foot. Correct Answers 1/8
Water hammer arrestors shall conform to ASSE _______ Correct
Answers 1010
A connection between a vent pipe and a vent stack or stack vent shall be
at least _____ inches above the flood level rim of the highest fixture
served by the vent. Correct Answers 6 inches
Air admittance valves shall be installed a minimum of ______ inches
above insulation materials. Correct Answers 6
A water supply system test done with air shall be at not less than ____
PSI. Correct Answers 50
If you install 80 feet of sewer at 1/4" per foot how many inches of fall in
the run? Correct Answers 20
The minimum size water supply pipe to a bidet shall be _____ inch.
Correct Answers 3/8
Horizontal drains shall have cleanouts not more than ______ feet apart.
Correct Answers 100
VERIFIED AND 100% ACCURATE ANSWERS
Waste water discharged into the building drainage system shall not be
over _______ *F Correct Answers 140
A water tank holds 50 gallons of water. How much does the 50 gallons
of water weigh? Correct Answers 417 lbs
Exterior walls may be notched to a depth exceeding _______________
percent of its width. Correct Answers 25
According to the WSSC PFGC, a full flow building water service valve
shall be installed within _____ feet of where the water service enters the
building. Correct Answers 3'
According to the WSSC PFGC, water meters installed inside of
buildings shall be located in an area capable of maintaining _____ *F.
Correct Answers 50
In Prince George and Montgomery County, water service piping shall be
not less than _____ inches below grade. Correct Answers 30
A cylindrical tank is 22 inches in diameter and 5 feet tall. How many
gallons of water will it hold? Correct Answers 98
The best method of backflow protection is an? Correct Answers Air-gap
, Horizontal drainage piping 4 inches in diameter shall have a minimum
slope of _____ per foot. Correct Answers 1/8
Water hammer arrestors shall conform to ASSE _______ Correct
Answers 1010
A connection between a vent pipe and a vent stack or stack vent shall be
at least _____ inches above the flood level rim of the highest fixture
served by the vent. Correct Answers 6 inches
Air admittance valves shall be installed a minimum of ______ inches
above insulation materials. Correct Answers 6
A water supply system test done with air shall be at not less than ____
PSI. Correct Answers 50
If you install 80 feet of sewer at 1/4" per foot how many inches of fall in
the run? Correct Answers 20
The minimum size water supply pipe to a bidet shall be _____ inch.
Correct Answers 3/8
Horizontal drains shall have cleanouts not more than ______ feet apart.
Correct Answers 100
