Correct Verified Answers 2026-2027.
Graded A
.2 of 1% - ANSWhat is the maximum lead content allowed in flux and
solder?
.25% - ANSWater pipe and fittings with a lead content which exceeds
________% shall be prohibited.
.26 - ANSMetered faucets shall deliver a maximum of ______ gallons of
water per use.
1 - ANSHow many approved slip joints are allowed on the outlet side of a
trap?
1 - ANSHow many bathroom groups are allowed to be horizontally wet
vented?
1 - ANSHow many pipe sizes can a trap arm and trap be increased?
1 - ANSHow many traps are permitted on a trap arm?
1
,1 - ANSHow many traps are required far a set of three lavatories that are
within the maximum allowable code distance?
1 - ANSManually operated flushometers shall be used to control not more
than _____ urinal(s).
1 1/2 - ANSStrainers for roof drains shall have a minimum inlet area above
the roof level not less than _________ times the area of the conductor
which the drain is connected.
1 1/4 " - 2' 6"
1 1/2" - 3' 6"
2" - 5'
3" - 6' - ANSWhat is the maximum trap to vent distance for the following
trap sizes.
1 1/4"
1 1/2"
2"
3"
1 1/4" - ANSWhat is the minimum individual vent size allowed by code?
1 gal - ANSWhat is the maximum number of gallons per flush allowed by
code for a urinal?
1 Story - ANSIn a multi-story building, accessibility to required fixtures shall
not exceed _______________.
2
,1 WC, 1-2 Lavs, BT/Shwr optional Bidet emergency floor drain - ANSWhat
is a Bathroom group?
1-1/4" - 1 dfu's
1-1/2" - 3 dfu's
2" - 4 dfu's
3" 6 dfu's
4" - dfu's - ANSWhat are the fixture unit values for the following traps
1.6 gal - ANSWhat is the maximum number of gallons per flush allowed by
code for a water closet.
1' - ANSWhat is the minimum code requirement height above the floor that
a reduced pressure principle back-flow preventer assembly can be
installed?
1" - ANSCaulk joints for cast iron bell and spigot shall be filled with molten
lead to a depth of not less than ________?
1" - ANSExcept for refrigeration could and ice machines, what is the
minimum size for an indirect was pipe?
1" of water column - ANSThe vent system seal be designed to prevent trap
seal from being exposed to a pressure differential that exceeds.
3
, 1", overflow pipe - ANSThe critical level for an anti-siphon ballcock water
closet shall be not less than ________ inch(es) above the full opening of
the __________ ________
1/2" - ANSWhat is the minimum size indirect waste pipe serving food
preparation equipment?
1/4" - ANSThreads of drainage fittings shall be tapped as to allow _____
pitch per foot
1/4" per foot - ANSWhat is the minimum pitch required fora 2" horizontal
drain?
1/8"/foot or 1% slope - ANSWhat is the minimum pitch allowed for indirect
waste piping conveying condensate discharge?
10 or more stories - ANSWhen are parallel vent stacks required by code?
10' Head of water for 15 minutes
5 psi for and air test - ANSWhat are the requirements when testing the
DWV system Water and Air?
100' - ANSMaximum distance a cleanup can be spaced apart
1024 square inches - ANSShower compartments regardless of shape, shall
have a minimum finished interior of _____________.
4