JOURNEYMAN AND MASTER PLUMBING
EXAM WITH QUESTIONS AND VERIFIED
ANSWERS|| GUARANTEED PASS || ALREADY
GRADED A+ || LATEST VERSION 2025
What minimum size pipe is required for a vertical wet vent? - ANSWER-2
inches
What is the minimum slope for a vent for an island sink? - ANSWER-1/4
A combination waste and vent drain requires a vent. The vent pipe is required to
be what minimum percent of the cross-sectional area of therein pipe served? -
ANSWER-50%
In a combination waste and vent system, a fixture with a 2 inch tail piece must
use a trap at least _____________ in size - ANSWER-four inches
The gauge of drawn brass "p" traps that may be used on fixtures discharging
domestic sewage but excluding urinals - ANSWER-17 gauge
Brass tubing traps shall be - ANSWER-exposed and readily accessible
On an emergency floor drain, which of the following is to be installed? -
ANSWER-Backwater valve
A grease interceptor installed in a commercial building is allowed to receive the
waste from all of the following except a - ANSWER-food waste grinder
,What maximum length is allowed for a 2" trap arm? - ANSWER-5 feet 0 inches
The developed length between the trap of a water closet and its vent shall not
exceed - ANSWER-6 feet
What is a corrugated line connecting a gas valve to an appliance called? -
ANSWER-An appliance connector
What minimum amount of time is required to test a low pressure gas piping
system? - ANSWER-10 minutes
Cleanout may be omitted on a horizontal drain line less than _____________
feet in length unless such line is serving sinks or urinals. - ANSWER-5
Excepting the building drain and its horizontal branches, a cleanout shall not be
required on any pipe which is above the _____________________ of a
building. - ANSWER-first floor
An additional cleanout shall be provided in a horizontal drainage line for each
aggregate change of direction exceeding ___________________ degrees. -
ANSWER-135
Cleanout for 2" pipe and smaller shall have a minimum clearance of
_____________________ inches. - ANSWER-12
What minimum amount of clearance is required in front of a 4" cleanout? -
ANSWER-18 inches
, Refer to the table at the end of this exam. What is the maximum number of
fixture units allowed for a 4" building drain that has 1/8" per foot slope? -
ANSWER-172.8 fixture units
The required size cleanout plug for a 4 inch and larger pipe is - ANSWER-3.5
inches
Refer to the table at the end of this exam. An 8" building sewer with an 1/8" per
foot grade is approved for what maximum drainage fixture unit load? -
ANSWER-2800 fixture units
What is the minimum gallon per minute for a sewer ejector? - ANSWER-20
gallons per minute
The minimum distance from center to center to any similar fixture for water
closets or bidets shall be _______________________ inches. - ANSWER-30
The clear space in front of any water closet shall be not less than - ANSWER-
24 inches
Urinals shall not be set closer than 12 inches from their center to any side wall
or partition nor closer than _______________ inches center to center. -
ANSWER-24
Water closets installed for public use must - ANSWER-be elongated
A test for shower receptors shall be accomplished by - ANSWER-filling to the
level of the rough threshold
Shower pans shall be tested for water tightness by filling with water to not less
than the - ANSWER-top of the rough threshold
EXAM WITH QUESTIONS AND VERIFIED
ANSWERS|| GUARANTEED PASS || ALREADY
GRADED A+ || LATEST VERSION 2025
What minimum size pipe is required for a vertical wet vent? - ANSWER-2
inches
What is the minimum slope for a vent for an island sink? - ANSWER-1/4
A combination waste and vent drain requires a vent. The vent pipe is required to
be what minimum percent of the cross-sectional area of therein pipe served? -
ANSWER-50%
In a combination waste and vent system, a fixture with a 2 inch tail piece must
use a trap at least _____________ in size - ANSWER-four inches
The gauge of drawn brass "p" traps that may be used on fixtures discharging
domestic sewage but excluding urinals - ANSWER-17 gauge
Brass tubing traps shall be - ANSWER-exposed and readily accessible
On an emergency floor drain, which of the following is to be installed? -
ANSWER-Backwater valve
A grease interceptor installed in a commercial building is allowed to receive the
waste from all of the following except a - ANSWER-food waste grinder
,What maximum length is allowed for a 2" trap arm? - ANSWER-5 feet 0 inches
The developed length between the trap of a water closet and its vent shall not
exceed - ANSWER-6 feet
What is a corrugated line connecting a gas valve to an appliance called? -
ANSWER-An appliance connector
What minimum amount of time is required to test a low pressure gas piping
system? - ANSWER-10 minutes
Cleanout may be omitted on a horizontal drain line less than _____________
feet in length unless such line is serving sinks or urinals. - ANSWER-5
Excepting the building drain and its horizontal branches, a cleanout shall not be
required on any pipe which is above the _____________________ of a
building. - ANSWER-first floor
An additional cleanout shall be provided in a horizontal drainage line for each
aggregate change of direction exceeding ___________________ degrees. -
ANSWER-135
Cleanout for 2" pipe and smaller shall have a minimum clearance of
_____________________ inches. - ANSWER-12
What minimum amount of clearance is required in front of a 4" cleanout? -
ANSWER-18 inches
, Refer to the table at the end of this exam. What is the maximum number of
fixture units allowed for a 4" building drain that has 1/8" per foot slope? -
ANSWER-172.8 fixture units
The required size cleanout plug for a 4 inch and larger pipe is - ANSWER-3.5
inches
Refer to the table at the end of this exam. An 8" building sewer with an 1/8" per
foot grade is approved for what maximum drainage fixture unit load? -
ANSWER-2800 fixture units
What is the minimum gallon per minute for a sewer ejector? - ANSWER-20
gallons per minute
The minimum distance from center to center to any similar fixture for water
closets or bidets shall be _______________________ inches. - ANSWER-30
The clear space in front of any water closet shall be not less than - ANSWER-
24 inches
Urinals shall not be set closer than 12 inches from their center to any side wall
or partition nor closer than _______________ inches center to center. -
ANSWER-24
Water closets installed for public use must - ANSWER-be elongated
A test for shower receptors shall be accomplished by - ANSWER-filling to the
level of the rough threshold
Shower pans shall be tested for water tightness by filling with water to not less
than the - ANSWER-top of the rough threshold
