NCCER- PIPE FITTER TEST QUESTIONS
WITH ANSWERS
Convert 1/4 to its decimal equivalent. - ans-0.25
xc xc xc xc xc xc xc
Piping that is field-routed to a pump must be supported - ans-independently
xc xc xc xc xc xc xc xc xc xc xc
What is used when lighting a cutting torch? - ans-Stricker
xc xc xc xc xc xc xc xc xc
Where is specific information needed to install piping and associated items found ? -
xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Standards and specificatons
xc xc xc
damaged and broken tools should be - ans-taken out of service
xc xc xc xc xc xc xc xc xc xc
What is the ID of 10" schedule 80 piping? - ans-9 9/16
xc xc xc xc xc xc xc xc xc xc xc
The two steps in making up threaded joints are the hand engagement and? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
Wrench makeup xc
Which of the following actions should be taken before a hydrostatic test is performed? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Remove pressure relief valves
xc xc xc xc
A 4 inch lateral riser is to be fabricated for a 6 inch pipe. How many ordinate lines will be
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
needed to lay out this cut? - ans-8 xc xc xc xc xc xc xc
Who is qualified to repair power tools? - ans-Competent Technician
xc xc xc xc xc xc xc xc xc
which of the following plastic pipes is NOT joined by solvent welding? - ans-HDPE
xc xc xc xc xc xc xc xc xc xc xc xc xc
Material placed in the bottom of the trench under the pipe to provide support is called? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Bedding
xc
Socket weld joints have a gap between the end of the pipe and the bottom of the socket.
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
What is the purpose of this gap? - ans-Prevents weld cracking
xc xc xc xc xc xc xc xc xc xc
When are rupture discs installed into a pipeline? - ans-before start up of the system
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
chain come-alongs are PRIMARILY designed for? - ans-vertical lifting
xc xc xc xc xc xc xc xc
, which if the following types of copper tubing has the thickest wall? - ans-K
xc xc xc xc xc xc xc xc xc xc xc xc xc
what is the MINIMUM grade of chain that may be used for rigging loads overehad? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
8
at and above what normal pipe size is the O.D. of the pipe the same as the norminal? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-14"
xc
Which type of field sketch has base lines that are 30 degrees to the horizontal axis? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-isometric
xc
the MINIMUM number of pre-heat holes for liquefied fuel tips is? - ans-6
xc xc xc xc xc xc xc xc xc xc xc xc
the first step to changing blades and bits on power tools is to? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
disconnect the power xc xc
what must be done to MOST socket welded valves before being welded into place? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-open the valve completely
xc xc xc xc
What is the length of pipe required to fabricate a 6''diameter schedule 40 pipe spool with
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
one class 150# RFWN flange on one end, and one class 300# RFWN flange on the other
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
end, with a face-to-face measurement of 18 1/2'' (assume a 1/8 welder gap) - ans-10 7/8
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
what is the standard torqueing valve of the Victaulic coupling bolts? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc
no torqueing is required
xc xc xc
at what dimension does a pipe begin to be measured by the outside diameter? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
14 inches xc
what is the 4th ordinate cutback measurement of a 3" diameter type 3 dummy eg on a 6"
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
elbow? - ans-10 3/16 xc xc xc
What is the ratio of the distance that the ladder should be from the base of the wall to
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
the height where the ladder meets the wall? - ans-1/4
xc xc xc xc xc xc xc xc xc
trenches MUST be designed, excavated, and shored according to? - ans-
xc xc xc xc xc xc xc xc xc xc
OSHA Standards xc
the angles of any triangle add up to? - ans-180
xc xc xc xc xc xc xc xc xc
What is the travel on a rolling offset that has a run of 18", a roll of 24" and a height of 12"
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
? - ans-34 15/16
xc xc xc
which of the following is a quick opening valve? - ans-butterfly
xc xc xc xc xc xc xc xc xc xc
find the lowest common denominator for 1/8 and 1/2. - ans-8
xc xc xc xc xc xc xc xc xc xc
WITH ANSWERS
Convert 1/4 to its decimal equivalent. - ans-0.25
xc xc xc xc xc xc xc
Piping that is field-routed to a pump must be supported - ans-independently
xc xc xc xc xc xc xc xc xc xc xc
What is used when lighting a cutting torch? - ans-Stricker
xc xc xc xc xc xc xc xc xc
Where is specific information needed to install piping and associated items found ? -
xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Standards and specificatons
xc xc xc
damaged and broken tools should be - ans-taken out of service
xc xc xc xc xc xc xc xc xc xc
What is the ID of 10" schedule 80 piping? - ans-9 9/16
xc xc xc xc xc xc xc xc xc xc xc
The two steps in making up threaded joints are the hand engagement and? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
Wrench makeup xc
Which of the following actions should be taken before a hydrostatic test is performed? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Remove pressure relief valves
xc xc xc xc
A 4 inch lateral riser is to be fabricated for a 6 inch pipe. How many ordinate lines will be
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
needed to lay out this cut? - ans-8 xc xc xc xc xc xc xc
Who is qualified to repair power tools? - ans-Competent Technician
xc xc xc xc xc xc xc xc xc
which of the following plastic pipes is NOT joined by solvent welding? - ans-HDPE
xc xc xc xc xc xc xc xc xc xc xc xc xc
Material placed in the bottom of the trench under the pipe to provide support is called? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-Bedding
xc
Socket weld joints have a gap between the end of the pipe and the bottom of the socket.
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
What is the purpose of this gap? - ans-Prevents weld cracking
xc xc xc xc xc xc xc xc xc xc
When are rupture discs installed into a pipeline? - ans-before start up of the system
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
chain come-alongs are PRIMARILY designed for? - ans-vertical lifting
xc xc xc xc xc xc xc xc
, which if the following types of copper tubing has the thickest wall? - ans-K
xc xc xc xc xc xc xc xc xc xc xc xc xc
what is the MINIMUM grade of chain that may be used for rigging loads overehad? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
8
at and above what normal pipe size is the O.D. of the pipe the same as the norminal? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-14"
xc
Which type of field sketch has base lines that are 30 degrees to the horizontal axis? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-isometric
xc
the MINIMUM number of pre-heat holes for liquefied fuel tips is? - ans-6
xc xc xc xc xc xc xc xc xc xc xc xc
the first step to changing blades and bits on power tools is to? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
disconnect the power xc xc
what must be done to MOST socket welded valves before being welded into place? -
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ans-open the valve completely
xc xc xc xc
What is the length of pipe required to fabricate a 6''diameter schedule 40 pipe spool with
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
one class 150# RFWN flange on one end, and one class 300# RFWN flange on the other
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
end, with a face-to-face measurement of 18 1/2'' (assume a 1/8 welder gap) - ans-10 7/8
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
what is the standard torqueing valve of the Victaulic coupling bolts? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc
no torqueing is required
xc xc xc
at what dimension does a pipe begin to be measured by the outside diameter? - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
14 inches xc
what is the 4th ordinate cutback measurement of a 3" diameter type 3 dummy eg on a 6"
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
elbow? - ans-10 3/16 xc xc xc
What is the ratio of the distance that the ladder should be from the base of the wall to
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
the height where the ladder meets the wall? - ans-1/4
xc xc xc xc xc xc xc xc xc
trenches MUST be designed, excavated, and shored according to? - ans-
xc xc xc xc xc xc xc xc xc xc
OSHA Standards xc
the angles of any triangle add up to? - ans-180
xc xc xc xc xc xc xc xc xc
What is the travel on a rolling offset that has a run of 18", a roll of 24" and a height of 12"
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
? - ans-34 15/16
xc xc xc
which of the following is a quick opening valve? - ans-butterfly
xc xc xc xc xc xc xc xc xc xc
find the lowest common denominator for 1/8 and 1/2. - ans-8
xc xc xc xc xc xc xc xc xc xc
