Multiple choice plumbing test
a) 1 b) 2 c) 3 d) 4
A bathroom that requires five water closets may substitute _____ water closets with urinals.
a) 1 b) 2 c) 3 d) 4
A building that requires five drinking fountains may substitute a maximum of _____ fountains with bottled water dispensers.
a) fixture drain b) fixture branch c) drainage fixture unit d) battery
A drainage branch pipe extending laterally from a soil or waste stack, that receives the discharge from two or more fixture drains is called a _____.
a) 4 b) 3 c) 2 d) 1
A fixture with a continuous flow of 2 gpm has the equivalent of _____ drainage fixture units.
a) directly on a garage floor b) 10 inches above the garage floor c) 18 inches above the garage floor d) any of the above
A gas-fired water heater, listed and labeled as resistant to flammable vapor ignition, may be installed _____.
a) .025 b) 3 c) 2.5 d) 2
A waste outlet for a shower shall have a removable strainer not less than _____ inches in diameter.
a) 2 b) 3 c) 4 d) 6
All indirect waste piping that exceeds _____ feet in developed length, measured horizontally, shall be trapped.
a) ANSI/NSF 14 b) ASSE1022 c) CAN/CSA-B64.2 d) ASME A 112.1.2
All plastic pipe fittings and components shall be third party certified as conforming to _____.
a) 2 b) 2 1/2 c) 3 d) 4
An eight inch stack is required to drain 2400 drainage fixture units from a four story building. Since the fourth story has only 58 d.f.u.s, the stack serving that story may be reduced to _____ inches.
a) 1 b) 2 c) 3 d) 4
How many eighth bends are required to make a 45 degree turn?
a) .10 inch b) .25 inch c) .025 inch d) .10 inch
Piping that passes through concrete walls shall be protected by a sleeve with a minimum thickness of _____.
a) 4 cubic feet b) 6 cubic feet c) 8 cubic feet d) 10 cubic feet
The area to be serviced by an oil separator in a service station is 300 square feet. What is the minimum size of the oil separator required?
a) 1 1/4 b) 1 1/2 c) 2 d) 3
The diameter of a stack vent with a developed length of 78 feet and connected to a 3 inch waste stack handling 27 d.f.u.s is _____.
a) 112.5 feet b) 75 feet c) 137.5 feet d) 150 feet
The measured length of a sump vent is 75 feet. What is the assumed developed length if allowances for losses, friction due to fittings, changes in direction and diameter are not available?
a) 1.25 b) 2 c) 5 d) 10
The velocity of 18 gpm flowing in a 3/4" smooth pipe is about _____ feet per second.
a) 18 b) 24 c) 30 d) 36
The vertical distance from the fixture outlet to the trap weir shall not exceed _____ inches.
a) 5 psi b) 2.5 psi c) 3.75 psi d) 4.25 psi
Using 150 feet of 3/4" smooth pipe, what is the approximate pressure drop if 10 gpm is to be delivered?
a) 3 b) 4 c) 5 d) 6
When selecting a sleeve for a 2 inch pipe passing through a foundation wall, the sleeve must be _____ in diameter.
a) 1 b) 2 c) 2.5 d) 3
When sizing a piping system, the minimum flow rate for a shower is _____ gpm.
long sweep, eighth bend, sixth bend, quarter bend
Which of the following fittings are not allowed for use when changing a 3" drain's direction horizontal to horizontal?
