Tradesman Exam Written Portion Questions With Complete
Solutions
______________ are prohibited. Correct Answers Crown vents
________________ shall be used to seal the vent water tight
where it passes through the roof. Correct Answers Flashing
_________________ shall be protected from back pressure and
siphonage by vents and pressure the same as outside air. Correct
Answers Trap seals
___________________ caused by high velocity, quick closing
valves, air tanks and pumps shall be controlled by arrestors.
Correct Answers Water hammer
___________________ must have air gaps or protective device
installed. Correct Answers Cross connections
____________________ shall be graded back to drainage pipe
at the fixture it serves. Correct Answers Vents
______________________ valve must be installed on the
supply to each fixture. Correct Answers Water supply shut off
A ________________ shall connect above the weir of the
fixture trap. Correct Answers Fixture vent
A 4" X 3" water closet bend is acceptable. Correct Answers
True
, A clearance of no less than ____________ must be provided for
rodding out 6" cleanouts or smaller. Correct Answers 18 inches
A measurement of pipe taken along the centerline of pipe and
fittings. Correct Answers Developed Length
A pipe installed to vent one fixture trap. It may connect to the
vent system above the fixture or terminate in the open air.
Correct Answers Individual Vent
A vent connecting individual vents with a stack vent or vent
stack. Correct Answers Branch Vent
A vertical vent pipe to provide circulation of air to and from the
drainage system Correct Answers Vent Stack
Access must be provided to slip-joint connections. Correct
Answers True
Access opening in the drainage system used to remove
obstructions Correct Answers Clean out
All pipe must be ________ to the full inside diameter of the pipe
to prevent turbulence. Correct Answers Reamed
Any part of the plumbing system except mains, stacks, or risers.
Correct Answers Branch
Any pipe that conveys wastewater in the drainage system.
Correct Answers Drain
Solutions
______________ are prohibited. Correct Answers Crown vents
________________ shall be used to seal the vent water tight
where it passes through the roof. Correct Answers Flashing
_________________ shall be protected from back pressure and
siphonage by vents and pressure the same as outside air. Correct
Answers Trap seals
___________________ caused by high velocity, quick closing
valves, air tanks and pumps shall be controlled by arrestors.
Correct Answers Water hammer
___________________ must have air gaps or protective device
installed. Correct Answers Cross connections
____________________ shall be graded back to drainage pipe
at the fixture it serves. Correct Answers Vents
______________________ valve must be installed on the
supply to each fixture. Correct Answers Water supply shut off
A ________________ shall connect above the weir of the
fixture trap. Correct Answers Fixture vent
A 4" X 3" water closet bend is acceptable. Correct Answers
True
, A clearance of no less than ____________ must be provided for
rodding out 6" cleanouts or smaller. Correct Answers 18 inches
A measurement of pipe taken along the centerline of pipe and
fittings. Correct Answers Developed Length
A pipe installed to vent one fixture trap. It may connect to the
vent system above the fixture or terminate in the open air.
Correct Answers Individual Vent
A vent connecting individual vents with a stack vent or vent
stack. Correct Answers Branch Vent
A vertical vent pipe to provide circulation of air to and from the
drainage system Correct Answers Vent Stack
Access must be provided to slip-joint connections. Correct
Answers True
Access opening in the drainage system used to remove
obstructions Correct Answers Clean out
All pipe must be ________ to the full inside diameter of the pipe
to prevent turbulence. Correct Answers Reamed
Any part of the plumbing system except mains, stacks, or risers.
Correct Answers Branch
Any pipe that conveys wastewater in the drainage system.
Correct Answers Drain
