PIPEFITTER NCCER 2026 TEST PAPER QUESTIONS AND
ANSWERS GRADED A+
✔✔Where on the drawing would the information for latest revision, engineering firm, and
drawing number be found?
A. Title block
B. Index
C. Header
D. Notes - ✔✔A. Title block
✔✔Where should steam traps be installed on a steam tracing system?
A. Highest point
B. Lowest point
C. Mid-point
D. Originating point - ✔✔B. Lowest point
✔✔What is the difference between an 8 in. 300# flange and an 8 in. 150# flange?
A. A 300# flange weighs twice as much as a 150# flange
B. A 300# flange is raised-face and a 150# flange is flat-face
C. A 300# flange has twice as many bolts as a 150# flange
D. A 300# flange has a different pressure rating than a 150# flange - ✔✔D. A 300#
flange has a different pressure rating than a 150# flange
✔✔A drawing that shows all equipment, pipelines, valves, instruments and controls of a
system is referred to as a(n):
A. isometric
B. orthographic
C. P & ID
D. spool - ✔✔C. P & ID
✔✔An eccentric dummy support welded on the back of a long radius 90-degree elbow
is laid out:
A. on the centerline of the elbow.
B. only on the outside radius of the elbow.
C. on the inside or the outside radius of the elbow.
D. only on the inside radius of the elbow. - ✔✔B. only on the outside radius of the
elbow.
✔✔Which type of eyebolt is preferred for angular lifting or horizontal pulling?
A. Shoulderless eyebolt
B. Shoulder type eyebolt
C. Ringbolt
D. Swivel eyebolt - ✔✔D. Swivel eyebolt
, ✔✔When bolting a pair of flanges that will NOT line up, what tool should be used to
assist in lining up the flanges?
A. Two-hole pin
B. Drift pin
C. Screwdriver
D. Hi-lo gauge - ✔✔B. Drift pin
✔✔Which flanges REQUIRE a full-face gasket?
A. Raised face flanges
B. Flat-face flanges
C. Ring-joint
D. Tongue and groove flanges - ✔✔B. Flat-face flanges
✔✔A valve is being rigged for installation in a vertical line. The valve should be rigged
so that the flange faces of the valve are:
A. 45 degrees from horizontal.
B. vertical.
C. horizontal.
D. 45 degrees from vertical. - ✔✔C. horizontal.
✔✔What is center to end length on a 3,000# 2" SW 90 ELL?
A. 2"
B. 2 1/2"
C. 2 3/8"
D. 1 1/2" - ✔✔C. 2 3/8"
✔✔What is the decimal equivalent of 4 15/16 inches?
A. 4.6875 inches
B. 4.8125 inches
C. 4.8750 inches
D. 4.9375 inches - ✔✔D. 4.9375 inches
✔✔Information referring to design requirements and materials for pipe, flanges, valves
and related items to be used is found in:
A. isometric drawings.
B. plot plans.
C. P & ID's
D. specifications. - ✔✔A. isometric drawings.
✔✔Threaded bushings are used when:
A. joining a smaller pipe to a larger fitting or valve.
B. joining a larger pipe to a smaller fitting or valve.
C. attaching threaded pipe to instrument tubing.
ANSWERS GRADED A+
✔✔Where on the drawing would the information for latest revision, engineering firm, and
drawing number be found?
A. Title block
B. Index
C. Header
D. Notes - ✔✔A. Title block
✔✔Where should steam traps be installed on a steam tracing system?
A. Highest point
B. Lowest point
C. Mid-point
D. Originating point - ✔✔B. Lowest point
✔✔What is the difference between an 8 in. 300# flange and an 8 in. 150# flange?
A. A 300# flange weighs twice as much as a 150# flange
B. A 300# flange is raised-face and a 150# flange is flat-face
C. A 300# flange has twice as many bolts as a 150# flange
D. A 300# flange has a different pressure rating than a 150# flange - ✔✔D. A 300#
flange has a different pressure rating than a 150# flange
✔✔A drawing that shows all equipment, pipelines, valves, instruments and controls of a
system is referred to as a(n):
A. isometric
B. orthographic
C. P & ID
D. spool - ✔✔C. P & ID
✔✔An eccentric dummy support welded on the back of a long radius 90-degree elbow
is laid out:
A. on the centerline of the elbow.
B. only on the outside radius of the elbow.
C. on the inside or the outside radius of the elbow.
D. only on the inside radius of the elbow. - ✔✔B. only on the outside radius of the
elbow.
✔✔Which type of eyebolt is preferred for angular lifting or horizontal pulling?
A. Shoulderless eyebolt
B. Shoulder type eyebolt
C. Ringbolt
D. Swivel eyebolt - ✔✔D. Swivel eyebolt
, ✔✔When bolting a pair of flanges that will NOT line up, what tool should be used to
assist in lining up the flanges?
A. Two-hole pin
B. Drift pin
C. Screwdriver
D. Hi-lo gauge - ✔✔B. Drift pin
✔✔Which flanges REQUIRE a full-face gasket?
A. Raised face flanges
B. Flat-face flanges
C. Ring-joint
D. Tongue and groove flanges - ✔✔B. Flat-face flanges
✔✔A valve is being rigged for installation in a vertical line. The valve should be rigged
so that the flange faces of the valve are:
A. 45 degrees from horizontal.
B. vertical.
C. horizontal.
D. 45 degrees from vertical. - ✔✔C. horizontal.
✔✔What is center to end length on a 3,000# 2" SW 90 ELL?
A. 2"
B. 2 1/2"
C. 2 3/8"
D. 1 1/2" - ✔✔C. 2 3/8"
✔✔What is the decimal equivalent of 4 15/16 inches?
A. 4.6875 inches
B. 4.8125 inches
C. 4.8750 inches
D. 4.9375 inches - ✔✔D. 4.9375 inches
✔✔Information referring to design requirements and materials for pipe, flanges, valves
and related items to be used is found in:
A. isometric drawings.
B. plot plans.
C. P & ID's
D. specifications. - ✔✔A. isometric drawings.
✔✔Threaded bushings are used when:
A. joining a smaller pipe to a larger fitting or valve.
B. joining a larger pipe to a smaller fitting or valve.
C. attaching threaded pipe to instrument tubing.
