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PRACTICE PLUMBING LICENSING EXAM (Contains 20 questions timed 1 hour 15 minutes)
A drainage branch pipe extending laterally from a soil or waste stack, that receives the dischaarge from two or more fixtue drains is called a
a) fixture drain
b) horizontal branch drain
c) drainage fixture unit
How many eighth bends are required to make a 45 degree turn?
A gas fired water heater, listed and labeled as resistant to flamable vapor ignition, may be installed
a) dirrectly on a garage floor
b) 10 inches above the garage floor
c) 18 inches above the garage floor
d) any of the above
Piping that passes through concrete walls shall be protected by a sleeve with a minimum thickness of ____.
a) .10 inch
b) .25 inch
c) .025 inch
d) .010 inch
showers waste outlets shall shall have a removable strainer, not less than ___ inches in diameter
Using 150 feet of 3/4 " smooth pipe, what is the aproximate pressure drop if 10 gpm is to be delivered
a) 5 psi
b) 2.5 psi
c) 3.75 psi
A fixture with a continuous flow of 2 gpm has the equivalent of _____ drainage fixture units
The diameter of a stack vent with a developed length of 78 feet and connected to a 3 inch waste stack handling 27 drainage fixture units is _____ inches
The velocity of 18 gpm flowing in a 3/4" smooth pipe is about ________ feet per second
which of the following fittings are not allowed for use when changing a 3" drain's direction horizontal to horizonatl
a) long sweep
b) eighth bend
c) sixth bend
d) quarter bend
The vertical distance from the fixture outlet to the trap weir shall not exceed ____ inches
All plastic pipe fittings and components shall be third party cetrified as conforming to _____________
a) ANSI/NSF 14
d) ASME A 112.1.2
A bathroom requiring 5 water closets may sustitute _____ water closets with urinals
An eight inch stack is required to drain 2400 drainage fixture units form a four story building. Since the fourth story has only 58 drainage fixture units, the stack serving that story may be reduced to ____ inches
The measured length of a sump vent is 75 feet. What is the assumed developed length if allowances for enrtrance losses, friction due to fittings, changes indirrection and diameter are not available.
a) 112.5 feet
b) 75 feet
c) 137.5 feet
d) 150 feet
The area to be serviced by an oil separator in a service staion is 300 square feet.. What is the minimum of the oil separator
a) 4 cubic feet
b) 6 cubic feet
c) 8 cubic feet
d) 10 cubic fet
All indirect waste piping that excced ____ feet in developed length, measured horizontally, shall be traped
When sizing a piping system, the minimum flow rate for a shower is________ gpm.
When selecting a sleeve for a 2 inch pipe passing through a foundation wall, the sleeve must be _____ diameter.
A building requiring 5 drinking fountains may substitute a maximum of_____ fountains with bottled water dispensers
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