Tradesman Plumbing Written
questions with correct answers
Building Drain - correct answer ✔✔ That part of the lowest piping of a drainage system that
receives the discharge from soil, waste and other drainage pipes inside and that extends 30
inches beyond the exterior walls of the building and conveys the drainage to the building sewer.
Male - correct answer ✔✔ For galvanized steel pipe joints, pipe-joint compound or tape shall be
applied on the _____ threads only
Certified - correct answer ✔✔ Water heaters shall be third party ______
WYE BRANCH TAILPIECE & FOOD WASTE DISPOSER - correct answer ✔✔ The waste connection
of a residential dishwasher is permitted to connect to a _____ on the tailpiece of the kitchen
sink or the dishwasher connection of a _____
100 - correct answer ✔✔ Horizontal drainage pipes in buildings shall have cleanouts located not
more than ___ Feet apart
purple - correct answer ✔✔ What color shall be used to identify piping in non-potable water
distribution systems?
Lead-free - correct answer ✔✔ soldered joints of copper water supply piping shall be made with
______ solders and fluxes
Potable water - correct answer ✔✔ Water free from impurities present in amounts sufficient to
cause disease or harmful physiological effects and conforming to the bacteriological and
, chemical quality requirements of Public Health Service Drinking Water Standards or the
regulations of public health authority having jurisdiction.
WATER , AIR - correct answer ✔✔ Plumbing system piping shall be tested with either _____ or,
for piping systems other than plastic, by ______
Main - correct answer ✔✔ The principal pipe artery to which branches are connected.
Vacuum Breaker - correct answer ✔✔ a type of backflow preventer installed on openings
subject to normal atmospheric pressure that prevents backflow by admitting atmospheric
pressure through ports to the discharge side of the device.
120 degrees Fahrenheit - correct answer ✔✔ The hot water supplied to bathtubs and whirlpool
bathtubs shall be limited to a maximum temperature of ______
2, Common Vent - correct answer ✔✔ An individual vent is permitted to vent ____ traps or
trapped fixtures as a _______
21" Inches - correct answer ✔✔ There shall be not less than _____ inch clearance in front of the
water closet, urinal, lavatory or bidet to any wall, fixture or door.
1" inch - correct answer ✔✔ A hub drain shall be in the form of a hub or a pipe extending not
less than ____ inch above a water impervious floor
Critical level - correct answer ✔✔ an elevation (height) reference point that determines the
minimum height at which a backflow preventer or vacuum breaker is installed above the flood
level rim of the fixture or receptor served by the device.
Terminate - correct answer ✔✔ Vent stacks or stack vents shall ____ outdoors to the open air or
to a stack type air admittance valve.
questions with correct answers
Building Drain - correct answer ✔✔ That part of the lowest piping of a drainage system that
receives the discharge from soil, waste and other drainage pipes inside and that extends 30
inches beyond the exterior walls of the building and conveys the drainage to the building sewer.
Male - correct answer ✔✔ For galvanized steel pipe joints, pipe-joint compound or tape shall be
applied on the _____ threads only
Certified - correct answer ✔✔ Water heaters shall be third party ______
WYE BRANCH TAILPIECE & FOOD WASTE DISPOSER - correct answer ✔✔ The waste connection
of a residential dishwasher is permitted to connect to a _____ on the tailpiece of the kitchen
sink or the dishwasher connection of a _____
100 - correct answer ✔✔ Horizontal drainage pipes in buildings shall have cleanouts located not
more than ___ Feet apart
purple - correct answer ✔✔ What color shall be used to identify piping in non-potable water
distribution systems?
Lead-free - correct answer ✔✔ soldered joints of copper water supply piping shall be made with
______ solders and fluxes
Potable water - correct answer ✔✔ Water free from impurities present in amounts sufficient to
cause disease or harmful physiological effects and conforming to the bacteriological and
, chemical quality requirements of Public Health Service Drinking Water Standards or the
regulations of public health authority having jurisdiction.
WATER , AIR - correct answer ✔✔ Plumbing system piping shall be tested with either _____ or,
for piping systems other than plastic, by ______
Main - correct answer ✔✔ The principal pipe artery to which branches are connected.
Vacuum Breaker - correct answer ✔✔ a type of backflow preventer installed on openings
subject to normal atmospheric pressure that prevents backflow by admitting atmospheric
pressure through ports to the discharge side of the device.
120 degrees Fahrenheit - correct answer ✔✔ The hot water supplied to bathtubs and whirlpool
bathtubs shall be limited to a maximum temperature of ______
2, Common Vent - correct answer ✔✔ An individual vent is permitted to vent ____ traps or
trapped fixtures as a _______
21" Inches - correct answer ✔✔ There shall be not less than _____ inch clearance in front of the
water closet, urinal, lavatory or bidet to any wall, fixture or door.
1" inch - correct answer ✔✔ A hub drain shall be in the form of a hub or a pipe extending not
less than ____ inch above a water impervious floor
Critical level - correct answer ✔✔ an elevation (height) reference point that determines the
minimum height at which a backflow preventer or vacuum breaker is installed above the flood
level rim of the fixture or receptor served by the device.
Terminate - correct answer ✔✔ Vent stacks or stack vents shall ____ outdoors to the open air or
to a stack type air admittance valve.
