PIPEFITTER NCCER UPDATED EXAM SCRIPT QUESTIONS
AND ANSWERS GRADED A+
✔✔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 - ✔✔C
✔✔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
D) After start-up of the system - ✔✔C
✔✔Chain come-alongs are PRIMARILY designed for?
A) Lifting in close quarters
B) Vertical lifting
C) Lifting in any location
D) Horizontal lifting - ✔✔B
✔✔Which of the following types of copper tubing has the thickest wall
A) K
B) L
C) M
D) Acr - ✔✔A
✔✔What is the MINIMUM grade of chain that may be used for rigging loads overhead?
A) 5
B) 6
C) 7
D) 8 - ✔✔D
✔✔At and above what norminal pipe size is the O.D. of the pipe the same as the
norminal
size of the pipe.
A) 10''
B) 12''
C) 14''
D) 16'' - ✔✔C
✔✔Which type of field sketch has base lines that are 30 degrees to the horizontal axis?
A) Orthographic
,B) Oblique
C) P & ID
D) Isometric - ✔✔D
✔✔The MINIMUM number of pre-heat holes for liquefied fuel tips is
A) 2 C) 6
B) 4 D) 8 - ✔✔C
✔✔The first step to changing blades and bits on power tools is to
A) Disassemble tool
B) Disconnect the power
C) Remove the guards
D) Get a new blade or bit - ✔✔B
✔✔What must be done to MOST socket welded valves before being welded into place?
A) Close the valve completely
B) Close the valve halfway
C) Open the valve completely
D) Cover the end of the valve - ✔✔C
✔✔What is the length of pipe required to fabricate a 6''diameter schedule 40 pipe spool
with one class 150# RFWN flange on one end, and one class 300# RFWN flange on the
other end, with a face-to-face measurement of 18 1/2'' (assume a 1/8 welder gap)
A) 10 11/16
B) 10 7/8
C) 12 5/16
D) 12 1/2 - ✔✔B
✔✔What is the standard torqueing valve of the Victaulic coupling bolts?
A) No torquing is required
B) 40 inch pounds
C) 60 inch pounds
D) 80 inch pounds - ✔✔A
✔✔At what dimension does a pipe begin to be measured by the outside diameter?
A) 8 inches
B) 10 inches
C) 12 inches
D) 14 inches - ✔✔D
✔✔What is the 4
th ordinate cutback measurement for a 3'' diameter type 3 dummy leg on a
6'' elbow
A) 12 7/16
, B) 10 3/16
C) 8 11/16
D) 6 11/16 - ✔✔B
✔✔What is the ratio of the distance that the ladder should be from the base of the wall
to
the height where the ladder meets the wall.
A) 1/2
B) 1/3
C) 1/4
D) 1/5 - ✔✔C
✔✔Trenches MUST be designed, excavated, and shored according to
A) ASME standards C) Company standards
B) API standards D) OSHA standards - ✔✔D
✔✔The angles of any triangle add up to
A) 45 degrees
B) 90
C) 100
D) 180 - ✔✔D
✔✔What is the travel on a rolling offset that has a Run of 18'', a roll 24'', and a height of
12''
A) 29 3/8
B) 32 5/16
C) 34 15/16
D) 38 9/16 - ✔✔C
✔✔Which of the following is a quick opening valve?
A) Globe
B) Needle
C) Butterfly
D) Gate - ✔✔C
✔✔Find the lowest common denominator for 1/8 and 1/2
A) 3
B) 5
C) 7
D) 8 - ✔✔D
✔✔A piping drawing that shows both the side view and the top view of a piping system
is
A) Elevation
AND ANSWERS GRADED A+
✔✔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 - ✔✔C
✔✔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
D) After start-up of the system - ✔✔C
✔✔Chain come-alongs are PRIMARILY designed for?
A) Lifting in close quarters
B) Vertical lifting
C) Lifting in any location
D) Horizontal lifting - ✔✔B
✔✔Which of the following types of copper tubing has the thickest wall
A) K
B) L
C) M
D) Acr - ✔✔A
✔✔What is the MINIMUM grade of chain that may be used for rigging loads overhead?
A) 5
B) 6
C) 7
D) 8 - ✔✔D
✔✔At and above what norminal pipe size is the O.D. of the pipe the same as the
norminal
size of the pipe.
A) 10''
B) 12''
C) 14''
D) 16'' - ✔✔C
✔✔Which type of field sketch has base lines that are 30 degrees to the horizontal axis?
A) Orthographic
,B) Oblique
C) P & ID
D) Isometric - ✔✔D
✔✔The MINIMUM number of pre-heat holes for liquefied fuel tips is
A) 2 C) 6
B) 4 D) 8 - ✔✔C
✔✔The first step to changing blades and bits on power tools is to
A) Disassemble tool
B) Disconnect the power
C) Remove the guards
D) Get a new blade or bit - ✔✔B
✔✔What must be done to MOST socket welded valves before being welded into place?
A) Close the valve completely
B) Close the valve halfway
C) Open the valve completely
D) Cover the end of the valve - ✔✔C
✔✔What is the length of pipe required to fabricate a 6''diameter schedule 40 pipe spool
with one class 150# RFWN flange on one end, and one class 300# RFWN flange on the
other end, with a face-to-face measurement of 18 1/2'' (assume a 1/8 welder gap)
A) 10 11/16
B) 10 7/8
C) 12 5/16
D) 12 1/2 - ✔✔B
✔✔What is the standard torqueing valve of the Victaulic coupling bolts?
A) No torquing is required
B) 40 inch pounds
C) 60 inch pounds
D) 80 inch pounds - ✔✔A
✔✔At what dimension does a pipe begin to be measured by the outside diameter?
A) 8 inches
B) 10 inches
C) 12 inches
D) 14 inches - ✔✔D
✔✔What is the 4
th ordinate cutback measurement for a 3'' diameter type 3 dummy leg on a
6'' elbow
A) 12 7/16
, B) 10 3/16
C) 8 11/16
D) 6 11/16 - ✔✔B
✔✔What is the ratio of the distance that the ladder should be from the base of the wall
to
the height where the ladder meets the wall.
A) 1/2
B) 1/3
C) 1/4
D) 1/5 - ✔✔C
✔✔Trenches MUST be designed, excavated, and shored according to
A) ASME standards C) Company standards
B) API standards D) OSHA standards - ✔✔D
✔✔The angles of any triangle add up to
A) 45 degrees
B) 90
C) 100
D) 180 - ✔✔D
✔✔What is the travel on a rolling offset that has a Run of 18'', a roll 24'', and a height of
12''
A) 29 3/8
B) 32 5/16
C) 34 15/16
D) 38 9/16 - ✔✔C
✔✔Which of the following is a quick opening valve?
A) Globe
B) Needle
C) Butterfly
D) Gate - ✔✔C
✔✔Find the lowest common denominator for 1/8 and 1/2
A) 3
B) 5
C) 7
D) 8 - ✔✔D
✔✔A piping drawing that shows both the side view and the top view of a piping system
is
A) Elevation
