PIPEFITTER NCCER 2026 STUDY GUIDE QUESTIONS AND
ANSWERS GRADED A+
✔✔A pre-hydro testing checklist will contain all of the following requirements EXECPT:
A. all valves and blinds are installed properly.
B. piping system matches ISO's, orthographics, and P & ID's.
C. there is an air bent at the high point in the system.
D. all welds are insulated and jacketed. - ✔✔D. all welds are insulated and jacketed.
✔✔Thermal beveling of pipe in preparation for welding REQUIRES the use of a(n):
A. heating iron
B. grinder
C. soldering copper
D. oxyfuel torch - ✔✔D. oxyfuel torch
✔✔In relation to welding HAZ stands for:
A. Health activated zone.
B. Heat affected zone.
C. Hazard communications.
D. High altitude zone. - ✔✔B. Heat affected zone.
✔✔In calculating a 45˚offset, what is the set multiplied by to determine the travel?
A. 0.707
B. 0.75
C. 1.414
D. 3.1416 - ✔✔C. 1.414
✔✔The rigger MUST carefully inspect the chain hoist:
A. daily.
B. Before each use
C. monthly.
D. after a malfunction. - ✔✔B. Before each use
✔✔What type of grinder is designed to reach into small areas with limited workspace?
A. Wachs grinder
B. Electric angle grinder
C. End grinder
D. Pneumatic vertical grinder - ✔✔C. End grinder
✔✔How many bolts are needed for a 4-inch, 600# flange?
A. 4
B. 6
C. 8
D. 12 - ✔✔C. 8
, ✔✔How much is 3 inches in hundredths of a foot?
A. 0.15
B. 0.26
C. 0.35
D. 0.5 - ✔✔B. 0.26
✔✔What is used to open flanges for the installation of a test blind?
A. Pipe wrench
B. C-Clamp
C. Flange spreader
D. Pry bar - ✔✔C. Flange spreader
✔✔How should bolts on an 8-bolt flange be tightened?
A. In a circular pattern
B. In a cross-over pattern
C. Tighten each bolt to finger tightness then use channel locks.
D. Tighten each bolt until the top of the bolt is even with the top of the nut - ✔✔B. In a
cross-over pattern
✔✔Piping that is field-routed to a pump must be supported:
A. off the pump suction.
B. diagonally.
C. independently.
D. off the pump discharge. - ✔✔C. independently.
✔✔The MINIMUM number of pre-heat holes for liquefied fuel tips is:
A. 2
B. 4
C. 6
D. 8 - ✔✔C. 6
✔✔Stainless steel material is generally used for pipes requiring protection from:
A. corrosion.
B. erosion.
C. pressure.
D. temperature. - ✔✔A. corrosion.
✔✔To braze copper tubing you would use a(n):
A. propane torch
B. butane torch
C. heat gun
D. oxyfuel torch - ✔✔D. oxyfuel torch
ANSWERS GRADED A+
✔✔A pre-hydro testing checklist will contain all of the following requirements EXECPT:
A. all valves and blinds are installed properly.
B. piping system matches ISO's, orthographics, and P & ID's.
C. there is an air bent at the high point in the system.
D. all welds are insulated and jacketed. - ✔✔D. all welds are insulated and jacketed.
✔✔Thermal beveling of pipe in preparation for welding REQUIRES the use of a(n):
A. heating iron
B. grinder
C. soldering copper
D. oxyfuel torch - ✔✔D. oxyfuel torch
✔✔In relation to welding HAZ stands for:
A. Health activated zone.
B. Heat affected zone.
C. Hazard communications.
D. High altitude zone. - ✔✔B. Heat affected zone.
✔✔In calculating a 45˚offset, what is the set multiplied by to determine the travel?
A. 0.707
B. 0.75
C. 1.414
D. 3.1416 - ✔✔C. 1.414
✔✔The rigger MUST carefully inspect the chain hoist:
A. daily.
B. Before each use
C. monthly.
D. after a malfunction. - ✔✔B. Before each use
✔✔What type of grinder is designed to reach into small areas with limited workspace?
A. Wachs grinder
B. Electric angle grinder
C. End grinder
D. Pneumatic vertical grinder - ✔✔C. End grinder
✔✔How many bolts are needed for a 4-inch, 600# flange?
A. 4
B. 6
C. 8
D. 12 - ✔✔C. 8
, ✔✔How much is 3 inches in hundredths of a foot?
A. 0.15
B. 0.26
C. 0.35
D. 0.5 - ✔✔B. 0.26
✔✔What is used to open flanges for the installation of a test blind?
A. Pipe wrench
B. C-Clamp
C. Flange spreader
D. Pry bar - ✔✔C. Flange spreader
✔✔How should bolts on an 8-bolt flange be tightened?
A. In a circular pattern
B. In a cross-over pattern
C. Tighten each bolt to finger tightness then use channel locks.
D. Tighten each bolt until the top of the bolt is even with the top of the nut - ✔✔B. In a
cross-over pattern
✔✔Piping that is field-routed to a pump must be supported:
A. off the pump suction.
B. diagonally.
C. independently.
D. off the pump discharge. - ✔✔C. independently.
✔✔The MINIMUM number of pre-heat holes for liquefied fuel tips is:
A. 2
B. 4
C. 6
D. 8 - ✔✔C. 6
✔✔Stainless steel material is generally used for pipes requiring protection from:
A. corrosion.
B. erosion.
C. pressure.
D. temperature. - ✔✔A. corrosion.
✔✔To braze copper tubing you would use a(n):
A. propane torch
B. butane torch
C. heat gun
D. oxyfuel torch - ✔✔D. oxyfuel torch
