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2026-2027) Correct Detailed & Verified
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State of Rhode Island Plumbing Code is known as: - ANSWERS-Plumbing Code
Regulation SBC-3
How many gallons does a urinal use during a flush cycle? - ANSWERS-1 gallon
A commercial food waste grinder should be trapped ___________________. -
ANSWERS-Individually
A commercial food waste grinder should have a minimum outlet of _____________. -
ANSWERS-2"
What is required to be utilized in the waste of a clothes washer waste? - ANSWERS-Air
Break
Unobstructed vertical distance through the free atmosphere between the outlet of the
waste pipe and the flood level rim of the receptacle into which the waste pipe is
discharging. - ANSWERS-Air Gap
Bored, Dug and Driven are examples of what? - ANSWERS-Well
The vertical distance from the fixture outlet to the trap weir shall not exceed
________________ and the horizontal distance shall not exceed _______________
, measured from the centerline of the fixture outlet to the centerline of the inlet of the trap.
- ANSWERS-24" and 30"
How much of a vertical wall should be added to the square footage calculation of a
roof? - ANSWERS-Half the square footage of the vertical wall
What is the clearance for rodding of a 6" pipe and an 8" pipe? - ANSWERS-18" and 36"
respectively
A vent must connect _______________ the centerline of a waste line. - ANSWERS-
Above
What is a branch vent? - ANSWERS-A vent connecting one or more individual vents
with a vent stack or stack vent.
What is the pressure in pounds at the base of a stack 82' high? - ANSWERS-.434 * 82
= 35.59 psi
How many gallons of water are in a tank that is 24" round and 60" high? - ANSWERS-
24" * 24" * .0034 * 60 = 117.5
backfilling, loose earth free from rocks, broken concrete and frozen chunks shall be
placed in the trench in ___________ layers and tamped in place until the crown of the
pipe is covered by _______________ of tamped earth. - ANSWERS-6" and 12"
Where rock is encountered in trenching, the rock shall be removed to a minimum of
____________ below the installation level of the bottom of the pipe. - ANSWERS-3"
Water Services Shall Be Installed Not Less Than: - ANSWERS-4' 6" Below Grade
Piping installed in exterior walls or areas subject to freezing must: - ANSWERS-
Insulated/Heated or Both