PIPEFITTER NCCER COMPREHENSIVE EXAM QUESTIONS
AND ANSWERS GRADED A+
✔✔In relationship to the diameter of the eye bolt, how deep should the tapped holes for
eye bolts be?
A) 1/2 times
B) 1 time
C) 1 1/2 times
D) 2 times - ✔✔C
✔✔When fabricating a spooled piece of pipe which type of drawing would normally be
used
A) Plan view C) P & ID
B) Isometric D) Orthographic - ✔✔B
✔✔What is the product of 7.60 x 0.12
A) 0.912
B) 1.192
C) 1.912
D) 9.912 - ✔✔A
✔✔To signal that you want to use the main hoist
A) Extend your arm and raise your thumb
B) Tap your elbow
C) Tap your hard hat
D) Clasp your hands - ✔✔C
✔✔How much would a 40' - 6''length of 12'' diameter standard weight pipe weigh?
A) 2009 lbs
B) 2013 lbs
C) 2650 lbs
D) 2655 lbs - ✔✔A
✔✔What would be the long segment measurement of a SIX-PIECE, 90 degree mitered
elbow
that has a radius of 24''
A) 3 3/16
B) 7 5/8
C) 7 13/16
D) 15 1/2 - ✔✔B
✔✔Performance, reliability, and quality of components are assured by use of
A) A qualified journeyman
B) Standards and Codes
, C) A qualified engineer
D) Reputable manufactures - ✔✔B
✔✔In-line specialty ball joints solve all the following problems EXCEPT.
A) Alignment
B) Vibration
C) Expansion
D) Flow - ✔✔D
✔✔Convert 9/16 to a decimal.
A) 0.58 C) 0.55
B) 0.56 D) 0.53 - ✔✔B
✔✔A length of 1 1/2-inch pipe is to be cut to run between two 90-drgree 6,000#
threaded
fittings. The fittings measure 7 ft 2 1/4 inches center-to-center. What is the cut length of
the pipe?
A) 6 feet 8 5/8 inches
B) 6 feet 8 3/4 inches
C) 6 feet 10 5/8 inches
D) 7 feet 2 1/4 inches - ✔✔C
✔✔What are installed in a pipe run to provide extra flexibility between anchors and
accommodate thermal growth and contraction?
A) Trapeze hangers
B) Expansion loops
C) Heat exchangers
D) Steam traps - ✔✔B
✔✔What is the height of the raised face on a class 600 forged steel weld neck flange?
A) 1/16''
B) 1/8''
C) 3/16''
D) 1/4'' - ✔✔D
✔✔In MOST instances, what is stamped or forged on the side of valves, fittings, and
flanges?
A) Date of manufacture, size, and heat number
B) Wall thickness, corrosion resistance, and type of material
C) Type of material, size, and pressure rating
D) Heat number, wall thickness, and country of origin - ✔✔C
✔✔If the area of a rectangle is 432 sq ft and one side is 12 ft long, how long is the other
side?
AND ANSWERS GRADED A+
✔✔In relationship to the diameter of the eye bolt, how deep should the tapped holes for
eye bolts be?
A) 1/2 times
B) 1 time
C) 1 1/2 times
D) 2 times - ✔✔C
✔✔When fabricating a spooled piece of pipe which type of drawing would normally be
used
A) Plan view C) P & ID
B) Isometric D) Orthographic - ✔✔B
✔✔What is the product of 7.60 x 0.12
A) 0.912
B) 1.192
C) 1.912
D) 9.912 - ✔✔A
✔✔To signal that you want to use the main hoist
A) Extend your arm and raise your thumb
B) Tap your elbow
C) Tap your hard hat
D) Clasp your hands - ✔✔C
✔✔How much would a 40' - 6''length of 12'' diameter standard weight pipe weigh?
A) 2009 lbs
B) 2013 lbs
C) 2650 lbs
D) 2655 lbs - ✔✔A
✔✔What would be the long segment measurement of a SIX-PIECE, 90 degree mitered
elbow
that has a radius of 24''
A) 3 3/16
B) 7 5/8
C) 7 13/16
D) 15 1/2 - ✔✔B
✔✔Performance, reliability, and quality of components are assured by use of
A) A qualified journeyman
B) Standards and Codes
, C) A qualified engineer
D) Reputable manufactures - ✔✔B
✔✔In-line specialty ball joints solve all the following problems EXCEPT.
A) Alignment
B) Vibration
C) Expansion
D) Flow - ✔✔D
✔✔Convert 9/16 to a decimal.
A) 0.58 C) 0.55
B) 0.56 D) 0.53 - ✔✔B
✔✔A length of 1 1/2-inch pipe is to be cut to run between two 90-drgree 6,000#
threaded
fittings. The fittings measure 7 ft 2 1/4 inches center-to-center. What is the cut length of
the pipe?
A) 6 feet 8 5/8 inches
B) 6 feet 8 3/4 inches
C) 6 feet 10 5/8 inches
D) 7 feet 2 1/4 inches - ✔✔C
✔✔What are installed in a pipe run to provide extra flexibility between anchors and
accommodate thermal growth and contraction?
A) Trapeze hangers
B) Expansion loops
C) Heat exchangers
D) Steam traps - ✔✔B
✔✔What is the height of the raised face on a class 600 forged steel weld neck flange?
A) 1/16''
B) 1/8''
C) 3/16''
D) 1/4'' - ✔✔D
✔✔In MOST instances, what is stamped or forged on the side of valves, fittings, and
flanges?
A) Date of manufacture, size, and heat number
B) Wall thickness, corrosion resistance, and type of material
C) Type of material, size, and pressure rating
D) Heat number, wall thickness, and country of origin - ✔✔C
✔✔If the area of a rectangle is 432 sq ft and one side is 12 ft long, how long is the other
side?
