plumbing tradesman test questions
and verified answers
Solder must be ______ free or _____ or less - correct answer ✔✔ Lead/0.2%
Pipe joint compound shall be applied to ____ threads only (unless pipe diameter is larger than
1.5") - correct answer ✔✔ male
all pipe must be reamed to the _____ inside diameter of the pipe to prevent turbulence -
correct answer ✔✔ full
Copper water service pipe must be a minimum of type ____ - correct answer ✔✔ M
Wet vent is also a _____ (only allowed on fixtures on the same floor) - correct answer ✔✔
waste
vents must not be installed within ___ pipe diameters of the trap weir - correct answer ✔✔ two
a fixture vent shall connect above the ____ of the fixture trap - correct answer ✔✔ weir
Trap arm connects with - not - or combo - correct answer ✔✔ Santee, wye
Water closets shall be set no closer than - center to center or - from a side wall - correct answer
✔✔ 30", 15"
water closet tanks shall consume no more than - gallons per flush - correct answer ✔✔ 1.28
, -" by -" water closet bend is acceptable - correct answer ✔✔ 4,3
water closet tanks have to have an - ballcock with a - tube to refill the trap seal - correct answer
✔✔ anti-siphon, refill
vents must rise to a minimum of -' vertically and -' above any parts of the building within 10' -
correct answer ✔✔ 5',2'
Vents must terminate with an approved - that is installed to meet manufacturer's instructions -
correct answer ✔✔ cap
T&P relief valves are installed to prevent excessive - and pressure to prevent explosion - correct
answer ✔✔ temperature
Trap seals - to -. Less will evaporate and deeper seals causes too little velocity - correct answer
✔✔ 2",4"
Traps that may evaporate need a trap - to keep the trap seal full - correct answer ✔✔ primer
T&P relief discharge piping must fall to the - of building (not a pan) - correct answer ✔✔ outside
T&P discharge piping cannot be - ( downhill ) - correct answer ✔✔ trapped
T&P discharge piping must be full size or minimum of - - correct answer ✔✔ 3/4"
Water heaters must be - above floor if in or open into a garage or store room - correct answer
✔✔ 18"
and verified answers
Solder must be ______ free or _____ or less - correct answer ✔✔ Lead/0.2%
Pipe joint compound shall be applied to ____ threads only (unless pipe diameter is larger than
1.5") - correct answer ✔✔ male
all pipe must be reamed to the _____ inside diameter of the pipe to prevent turbulence -
correct answer ✔✔ full
Copper water service pipe must be a minimum of type ____ - correct answer ✔✔ M
Wet vent is also a _____ (only allowed on fixtures on the same floor) - correct answer ✔✔
waste
vents must not be installed within ___ pipe diameters of the trap weir - correct answer ✔✔ two
a fixture vent shall connect above the ____ of the fixture trap - correct answer ✔✔ weir
Trap arm connects with - not - or combo - correct answer ✔✔ Santee, wye
Water closets shall be set no closer than - center to center or - from a side wall - correct answer
✔✔ 30", 15"
water closet tanks shall consume no more than - gallons per flush - correct answer ✔✔ 1.28
, -" by -" water closet bend is acceptable - correct answer ✔✔ 4,3
water closet tanks have to have an - ballcock with a - tube to refill the trap seal - correct answer
✔✔ anti-siphon, refill
vents must rise to a minimum of -' vertically and -' above any parts of the building within 10' -
correct answer ✔✔ 5',2'
Vents must terminate with an approved - that is installed to meet manufacturer's instructions -
correct answer ✔✔ cap
T&P relief valves are installed to prevent excessive - and pressure to prevent explosion - correct
answer ✔✔ temperature
Trap seals - to -. Less will evaporate and deeper seals causes too little velocity - correct answer
✔✔ 2",4"
Traps that may evaporate need a trap - to keep the trap seal full - correct answer ✔✔ primer
T&P relief discharge piping must fall to the - of building (not a pan) - correct answer ✔✔ outside
T&P discharge piping cannot be - ( downhill ) - correct answer ✔✔ trapped
T&P discharge piping must be full size or minimum of - - correct answer ✔✔ 3/4"
Water heaters must be - above floor if in or open into a garage or store room - correct answer
✔✔ 18"
