What is the minimum drain pipe size for the toilet in a residential home? - ANSWER 3
inches
Who is licensed to install residential fire sprinkler systems?
A) Plumbing contractor
B) Fire protection contractor
C) General Building contractor
D) Pipeline contractor - ANSWER B) Fire protection contractor
When brazing or soldering gas pipes during the installation of water heaters, what is the best
way to prepare the pipe?
A) Clean it with water
B) Blow into the pipe using your lungs
C) Clean the surface using a power tool
D) Use a pressurized air canister - ANSWER C) Clean the surface using a power tool
Which personal lift is not acceptable?
A) Scissor
B) Boom
C) Manual
D) Endless rope lift - ANSWER D) Endless rope lift
1
,What is the purpose of PVC primer?
A) To glue PVC pipes to other materials
B) To soften PVC pipe before applying PVC cement
C) To prevent electrical shock
D) To help solder conduit or piping - ANSWER B) To soften PVC pipe before applying PVC
cement
What is the most common location to find a roof leak?
A) Attic
B) Shingles
C) Flashing
D) Collar tie - ANSWER C) Flashing
(Leaks are most common when two surfaces meet or around fenestration. Leaks are most
prominent in valley flashing and improperly installed window flashing.)
What is the most common reason for noise in piping when a water fixture is turned on or
off?
A) Hot water was used
B) Cold water was used
C) Pipe supports come into contact with metal piping
D) The walls are not up to code causing pipe failure - ANSWER C) Pipe supports come into
contact with metal piping
(Mainly due to water hammer.)
2
, If you send your employee to purchase a 2-inch water supply valve and they return with a
1.5-inch supply valve, then what is the proper composition of the valve?
A) The casing must be made of plastic
B) The employee must return and purchase a wrought iron valve
C) Brass type
D) The connection must be silver and body made of iron - ANSWER C) Brass type
When penetrating a roof with an exhaust, the exhaust must be no closer than _____ feet to
any air intake or openable window. - ANSWER 10
Which roof assembly has the best fire rating?
A) Class A
B) Class B
C) Class I
D) Class III - ANSWER A) Class A
What does material compatibility refer to when installing alternate water sources in existing
plumbing systems?
A) Plumbing fixtures have to come from the same manufacturer
B) Only the couplings must be made of metal
C) All plumbing connections must be soldered or brazed
D) Use of materials that are compatible with the type of pipe and fitting materials - AN-
SWER D) Use of materials that are compatible with the type of pipe and fitting materials
When you have a gap in the building envelope, what do you do to prevent air leakage?
3
inches
Who is licensed to install residential fire sprinkler systems?
A) Plumbing contractor
B) Fire protection contractor
C) General Building contractor
D) Pipeline contractor - ANSWER B) Fire protection contractor
When brazing or soldering gas pipes during the installation of water heaters, what is the best
way to prepare the pipe?
A) Clean it with water
B) Blow into the pipe using your lungs
C) Clean the surface using a power tool
D) Use a pressurized air canister - ANSWER C) Clean the surface using a power tool
Which personal lift is not acceptable?
A) Scissor
B) Boom
C) Manual
D) Endless rope lift - ANSWER D) Endless rope lift
1
,What is the purpose of PVC primer?
A) To glue PVC pipes to other materials
B) To soften PVC pipe before applying PVC cement
C) To prevent electrical shock
D) To help solder conduit or piping - ANSWER B) To soften PVC pipe before applying PVC
cement
What is the most common location to find a roof leak?
A) Attic
B) Shingles
C) Flashing
D) Collar tie - ANSWER C) Flashing
(Leaks are most common when two surfaces meet or around fenestration. Leaks are most
prominent in valley flashing and improperly installed window flashing.)
What is the most common reason for noise in piping when a water fixture is turned on or
off?
A) Hot water was used
B) Cold water was used
C) Pipe supports come into contact with metal piping
D) The walls are not up to code causing pipe failure - ANSWER C) Pipe supports come into
contact with metal piping
(Mainly due to water hammer.)
2
, If you send your employee to purchase a 2-inch water supply valve and they return with a
1.5-inch supply valve, then what is the proper composition of the valve?
A) The casing must be made of plastic
B) The employee must return and purchase a wrought iron valve
C) Brass type
D) The connection must be silver and body made of iron - ANSWER C) Brass type
When penetrating a roof with an exhaust, the exhaust must be no closer than _____ feet to
any air intake or openable window. - ANSWER 10
Which roof assembly has the best fire rating?
A) Class A
B) Class B
C) Class I
D) Class III - ANSWER A) Class A
What does material compatibility refer to when installing alternate water sources in existing
plumbing systems?
A) Plumbing fixtures have to come from the same manufacturer
B) Only the couplings must be made of metal
C) All plumbing connections must be soldered or brazed
D) Use of materials that are compatible with the type of pipe and fitting materials - AN-
SWER D) Use of materials that are compatible with the type of pipe and fitting materials
When you have a gap in the building envelope, what do you do to prevent air leakage?
3
