PLUMBING LEVEL 3 EXAM ACTUAL EXAM 60
QUESTIONS AND CORRECT DETAILED ANSWERS |
ALREADY GRADED A
A journeyman plumber and an apprentice, who are employed by a master plumber,
are installing the DWV-system and water distribution system in a 2-½ story single
family dwelling. QUESTION: What answer below shall be considered most correct to
complete the following "Plumbing code knowledge" related statement: A trap that
serves a single shower stall that is equipped with a hand shower, a rain head, and a
standard shower head shall be no less than ________ in minimum diameter
A) 1-½" B) 2" C) 2-½" D) 3" - ANSWER: 2 inches
A journeyman plumber and apprentice are installing 3-inch floor drains in an open-
parking-garage that is subject to freezing temperatures. QUESTION: What answer
below shall be considered most correct to complete the following "Plumbing code
knowledge" related statement: The installation of traps at the floor drain locations
which are found susceptible to freezing temperatures may be __________.
A)Increased to 4-inch B) Eliminated C) Wrapped with freeze protection cable D)
Insulated - ANSWER: eliminated
A journeyman plumber and apprentice are installing lab sinks with faucets that are
connected to an acid waste system for-(special hazardous waste) in a medical lab.
What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: Vacuum breakers shall be installed
with the critical level at least _____-inches above the flood level rim of the fixture
they serve and on the discharge side of the last control valve to the fixture.
A) 12 B) 6 C) 18 D) 3 - ANSWER: 6 inches
What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: No plumbing permit shall be issued
for cross connection installations that require ______________ until the application
for a permit is accompanied by a letter of approval from the Massachusetts
Department of Environmental Protection or its designee.
A) RPBP B) A "critical level" height C) Atmospheric vacuum breakers D) Water
recycling systems - ANSWER: reduced pressure backflow preventer (RPBP)
: What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: The waste discharge from safe waste
pans serving water heaters or hot water storage tanks where there is _______ below
and shall be piped indirectly to a properly trapped and vented fixture.
A) People B) Occupancy C) Floors D) Plumbing connections - ANSWER: occupancy
,GIVEN: A journeyman plumber and an apprentice, (who are employed by a master
plumber), are installing the sanitary DWV and water distribution system in a five-
story residential condominium complex. QUESTION: What answer below shall be
considered most correct to complete the following "Plumbing code knowledge"
related statement: CPVC-(Chlorinated Polyvinyl Chloride) pipe and fittings may be
used provided that none of this material is located within ____-inches of any
connection to a hot water tank as defined in MGL. c. 142, § 17
A) 12 B) 18 C) 20 D) 24 E) 30 - ANSWER: 24 inches
: A journeyman plumber and apprentice are roughing-in multiple fixtures in a new
fitness center. The facility will include a juice bar, temporary daycare room, men's
and women's toilet facilities and men's and women's locker rooms. QUESTION: What
answer below shall be considered most correct to complete the following "Plumbing
code knowledge" related statement: A ________-vent is a branch vent that serves
two or more floor-outlet fixtures that are battery wasted. The vent extends from the
top of the horizontal soil and/or waste branch in front of the last fixture waste and
connects to a vent stack or stack vent that is adjacent to the down-stream end of the
horizontal branch.
A) Side B) Loop C) Relief D) Circuit - ANSWER: loop
MATCH:
Elevated pressure
Flow designation
Ten P.S.I.G. or less
Less than 2-P.S.I
A) 3 P.S.I.G. or ten times
B) Inlet pressure
C) E.H.D.
D) Prof. Engineer - ANSWER: elevated pressure- d
flow designation-c
Ten P.S.I.G. or less-a
Less than 2-P.S.I-b
N: A journeyman plumber is installing category-I gas appliances and equipment in
the basement of a building. A 120,000 BTU/hr. boiler and 40,000 BTU/hr. water
heater are being installed. QUESTION: What answer below shall be considered most
correct to complete the following "Gas code knowledge" related statement: The
boiler requires a minimum of _____-cu. ft. of air to support proper combustion
A) 2,400 cu. ft. B) 120 sq. in. C) 3,200 sq. ft. D) 800 cu. ft. - ANSWER: 2,400 cu. ft.
120,000/50
) QUESTION: What answer below shall be considered most correct to complete the
following "Gas code knowledge" related statement: The code would require the gas
, vent penetrating the roof in-[FIGURE-TP-B-Q1-1A: GAS VENT SIZING] as identified at
point-[A] to be not less than ______ above any portion of a building within 10-feet
horizontally.
A) 24" B) 3-feet C) 30-inches D) Forty-two-inches - ANSWER: 24
In Massachusetts copper tubing and fittings may be used for natural gas piping
A) Provided that the tubing is type-k with flared fitting connections. B) When
approved by the authority having jurisdiction.
C) At interior locations only and not concealed.
D) If the gas contains no more than .03 grains of hydrogen sulfide per 100 cu. ft. of
gas. - ANSWER: If the gas contains no more than .03 grains of hydrogen sulfide per
100 cu. ft. of gas
: A journeyman plumber and apprentice, who are employed by a master plumber,
are installing a natural gas fired category-1 boiler and water heater to an interior,
clay tile lined, masonry chimney. When measured in compliance with the code the
chimney "height" is 48-feet. QUESTION: What answer below shall be considered
most correct to complete the following "Gas code knowledge" related statement:
_____ is the maximum allowable amount of 6-inch single wall metal vent connector
material that may be installed horizontally to connect the boiler and water heater to
the chimney
A) 36-feet B) 50% of the chimney height C) 48-feet D) 9-feet - ANSWER: 36 feet
: A journeyman plumber is installing a natural gas fired category-1 boiler with an
indirect water heater. Type-B double wall vent connector material is being used to
vent products of combustion from the boiler to an interior tile lined masonry
chimney that is 35-feet in height. QUESTION: What answer below shall be
considered most correct to complete the following "Gas code knowledge" related
statement: A clearance of _____ from combustibles shall be maintained when
using/installing type-B vent materials.
A) 6-inches B) 2" C) 1-foot D) One-inch - ANSWER: one inch
A)1 Fixture unit
B)D 2' X L' X _____= Capacity
C)Diameter ÷ 2
D) .00433A)7.5 GALLONS
A)7.5 GALLONS
B)5.875
C)RADIUS OF A CIRCLE
D)1 CU IN OF WATER - ANSWER: A)7.5 GALLONS
B)5.875
C)RADIUS OF A CIRCLE
D)1 CU IN OF WATER
QUESTIONS AND CORRECT DETAILED ANSWERS |
ALREADY GRADED A
A journeyman plumber and an apprentice, who are employed by a master plumber,
are installing the DWV-system and water distribution system in a 2-½ story single
family dwelling. QUESTION: What answer below shall be considered most correct to
complete the following "Plumbing code knowledge" related statement: A trap that
serves a single shower stall that is equipped with a hand shower, a rain head, and a
standard shower head shall be no less than ________ in minimum diameter
A) 1-½" B) 2" C) 2-½" D) 3" - ANSWER: 2 inches
A journeyman plumber and apprentice are installing 3-inch floor drains in an open-
parking-garage that is subject to freezing temperatures. QUESTION: What answer
below shall be considered most correct to complete the following "Plumbing code
knowledge" related statement: The installation of traps at the floor drain locations
which are found susceptible to freezing temperatures may be __________.
A)Increased to 4-inch B) Eliminated C) Wrapped with freeze protection cable D)
Insulated - ANSWER: eliminated
A journeyman plumber and apprentice are installing lab sinks with faucets that are
connected to an acid waste system for-(special hazardous waste) in a medical lab.
What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: Vacuum breakers shall be installed
with the critical level at least _____-inches above the flood level rim of the fixture
they serve and on the discharge side of the last control valve to the fixture.
A) 12 B) 6 C) 18 D) 3 - ANSWER: 6 inches
What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: No plumbing permit shall be issued
for cross connection installations that require ______________ until the application
for a permit is accompanied by a letter of approval from the Massachusetts
Department of Environmental Protection or its designee.
A) RPBP B) A "critical level" height C) Atmospheric vacuum breakers D) Water
recycling systems - ANSWER: reduced pressure backflow preventer (RPBP)
: What answer below shall be considered most correct to complete the following
"Plumbing code knowledge" related statement: The waste discharge from safe waste
pans serving water heaters or hot water storage tanks where there is _______ below
and shall be piped indirectly to a properly trapped and vented fixture.
A) People B) Occupancy C) Floors D) Plumbing connections - ANSWER: occupancy
,GIVEN: A journeyman plumber and an apprentice, (who are employed by a master
plumber), are installing the sanitary DWV and water distribution system in a five-
story residential condominium complex. QUESTION: What answer below shall be
considered most correct to complete the following "Plumbing code knowledge"
related statement: CPVC-(Chlorinated Polyvinyl Chloride) pipe and fittings may be
used provided that none of this material is located within ____-inches of any
connection to a hot water tank as defined in MGL. c. 142, § 17
A) 12 B) 18 C) 20 D) 24 E) 30 - ANSWER: 24 inches
: A journeyman plumber and apprentice are roughing-in multiple fixtures in a new
fitness center. The facility will include a juice bar, temporary daycare room, men's
and women's toilet facilities and men's and women's locker rooms. QUESTION: What
answer below shall be considered most correct to complete the following "Plumbing
code knowledge" related statement: A ________-vent is a branch vent that serves
two or more floor-outlet fixtures that are battery wasted. The vent extends from the
top of the horizontal soil and/or waste branch in front of the last fixture waste and
connects to a vent stack or stack vent that is adjacent to the down-stream end of the
horizontal branch.
A) Side B) Loop C) Relief D) Circuit - ANSWER: loop
MATCH:
Elevated pressure
Flow designation
Ten P.S.I.G. or less
Less than 2-P.S.I
A) 3 P.S.I.G. or ten times
B) Inlet pressure
C) E.H.D.
D) Prof. Engineer - ANSWER: elevated pressure- d
flow designation-c
Ten P.S.I.G. or less-a
Less than 2-P.S.I-b
N: A journeyman plumber is installing category-I gas appliances and equipment in
the basement of a building. A 120,000 BTU/hr. boiler and 40,000 BTU/hr. water
heater are being installed. QUESTION: What answer below shall be considered most
correct to complete the following "Gas code knowledge" related statement: The
boiler requires a minimum of _____-cu. ft. of air to support proper combustion
A) 2,400 cu. ft. B) 120 sq. in. C) 3,200 sq. ft. D) 800 cu. ft. - ANSWER: 2,400 cu. ft.
120,000/50
) QUESTION: What answer below shall be considered most correct to complete the
following "Gas code knowledge" related statement: The code would require the gas
, vent penetrating the roof in-[FIGURE-TP-B-Q1-1A: GAS VENT SIZING] as identified at
point-[A] to be not less than ______ above any portion of a building within 10-feet
horizontally.
A) 24" B) 3-feet C) 30-inches D) Forty-two-inches - ANSWER: 24
In Massachusetts copper tubing and fittings may be used for natural gas piping
A) Provided that the tubing is type-k with flared fitting connections. B) When
approved by the authority having jurisdiction.
C) At interior locations only and not concealed.
D) If the gas contains no more than .03 grains of hydrogen sulfide per 100 cu. ft. of
gas. - ANSWER: If the gas contains no more than .03 grains of hydrogen sulfide per
100 cu. ft. of gas
: A journeyman plumber and apprentice, who are employed by a master plumber,
are installing a natural gas fired category-1 boiler and water heater to an interior,
clay tile lined, masonry chimney. When measured in compliance with the code the
chimney "height" is 48-feet. QUESTION: What answer below shall be considered
most correct to complete the following "Gas code knowledge" related statement:
_____ is the maximum allowable amount of 6-inch single wall metal vent connector
material that may be installed horizontally to connect the boiler and water heater to
the chimney
A) 36-feet B) 50% of the chimney height C) 48-feet D) 9-feet - ANSWER: 36 feet
: A journeyman plumber is installing a natural gas fired category-1 boiler with an
indirect water heater. Type-B double wall vent connector material is being used to
vent products of combustion from the boiler to an interior tile lined masonry
chimney that is 35-feet in height. QUESTION: What answer below shall be
considered most correct to complete the following "Gas code knowledge" related
statement: A clearance of _____ from combustibles shall be maintained when
using/installing type-B vent materials.
A) 6-inches B) 2" C) 1-foot D) One-inch - ANSWER: one inch
A)1 Fixture unit
B)D 2' X L' X _____= Capacity
C)Diameter ÷ 2
D) .00433A)7.5 GALLONS
A)7.5 GALLONS
B)5.875
C)RADIUS OF A CIRCLE
D)1 CU IN OF WATER - ANSWER: A)7.5 GALLONS
B)5.875
C)RADIUS OF A CIRCLE
D)1 CU IN OF WATER
