Page 1 of 64
Pipefitter NCCER Exam ALL 300 QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE THIS
YEAR
QUESTION: Which of the following actions should be taken before a hydrostatic test is
performed ?
A) Remove pressure relief valves
B) Leave control mechanisms in place
C) Leave orifice flanges in place
D) Remove blinds - ANSWER-a
QUESTION: A 4-inch lateral riser is to be fabricated for a 6-inch pipe. How many ordinate lines
will
be needed to lay out this cut ?
A) 32
B) 16
C) 8
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, Page 2 of 64
D) 4 - ANSWER-C
QUESTION: Who is qualified to repair power tools.
A) Journey person
B) Competent Technician
C) Electrician
D) Tool crib attendant - ANSWER-B
QUESTION: Which of the following plastic pipes is NOT joined by solvent welding ?
A) PVC
B) HDPE
C) CPVC
D) ABS - ANSWER-B
QUESTION: Material placed in the bottom of the trench under the pipe to provide support is
called.
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A) Heave
B) Sub trench
C) Trench load
D) Bedding - ANSWER-D
QUESTION: Socket weld joints have a gap between the end of the pipe and the bottom of the
socket. What is the purpose of this gap ?
A) Makes assembly easier
B) Reduces flexibility at the fitting
C) Prevents weld cracking
D) Provides fit-up adjustment - ANSWER-C
QUESTION: When are rupture discs installed into a pipeline?
A) Before flushing and testing of pipeline
B) After installation of the pipeline
C) Before start-up of the system
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, Page 4 of 64
D) After start-up of the system - ANSWER-C
QUESTION: Chain come-alongs are PRIMARILY designed for?
A) Lifting in close quarters
B) Vertical lifting
C) Lifting in any location
D) Horizontal lifting - ANSWER-B
Q.; Convert 1/4 to its decimal equivalent.
A) .01
B) .25
C) 0.4
D) 0.5 - ANSWER-B
QUESTION: Piping that is field-routed to a pump must be supported
A) Off the pump suction
4
Pipefitter NCCER Exam ALL 300 QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE THIS
YEAR
QUESTION: Which of the following actions should be taken before a hydrostatic test is
performed ?
A) Remove pressure relief valves
B) Leave control mechanisms in place
C) Leave orifice flanges in place
D) Remove blinds - ANSWER-a
QUESTION: A 4-inch lateral riser is to be fabricated for a 6-inch pipe. How many ordinate lines
will
be needed to lay out this cut ?
A) 32
B) 16
C) 8
1
, Page 2 of 64
D) 4 - ANSWER-C
QUESTION: Who is qualified to repair power tools.
A) Journey person
B) Competent Technician
C) Electrician
D) Tool crib attendant - ANSWER-B
QUESTION: Which of the following plastic pipes is NOT joined by solvent welding ?
A) PVC
B) HDPE
C) CPVC
D) ABS - ANSWER-B
QUESTION: Material placed in the bottom of the trench under the pipe to provide support is
called.
2
, Page 3 of 64
A) Heave
B) Sub trench
C) Trench load
D) Bedding - ANSWER-D
QUESTION: Socket weld joints have a gap between the end of the pipe and the bottom of the
socket. What is the purpose of this gap ?
A) Makes assembly easier
B) Reduces flexibility at the fitting
C) Prevents weld cracking
D) Provides fit-up adjustment - ANSWER-C
QUESTION: When are rupture discs installed into a pipeline?
A) Before flushing and testing of pipeline
B) After installation of the pipeline
C) Before start-up of the system
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, Page 4 of 64
D) After start-up of the system - ANSWER-C
QUESTION: Chain come-alongs are PRIMARILY designed for?
A) Lifting in close quarters
B) Vertical lifting
C) Lifting in any location
D) Horizontal lifting - ANSWER-B
Q.; Convert 1/4 to its decimal equivalent.
A) .01
B) .25
C) 0.4
D) 0.5 - ANSWER-B
QUESTION: Piping that is field-routed to a pump must be supported
A) Off the pump suction
4
