PIPE FITTER QUESTIONS WITH
ANSWERS
When using shoring to support walls in an evacuation, which of the following would NOT
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
be used?
xc
A. Upright
xc
B. Wales
xc
C. Cross braces
xc xc
D. Soil anchor - ans-B. Wales
xc xc xc xc xc
What is used to reduce or increase pipe sizes in threaded pipelines?
xc xc xc xc xc xc xc xc xc xc xc
A. Unions
xc
B. Couplings
xc
C. Bushings
xc
D. Nipples - ans-C. Bushings
xc xc xc xc
Chain come-alongs are PRIMARILY designed for:
xc xc xc xc xc
A. Lifting in close quarters.
xc xc xc xc
B. Vertical lifting.
xc xc
C. Lifting in any location.
xc xc xc xc
D. Horizontal lifting. - ans-D. Horizontal lifting.
xc xc xc xc xc xc
A piping and instrumentation drawing would show which of the following?
xc xc xc xc xc xc xc xc xc xc
A. Direction of flow
xc xc xc
B. Bill of material
xc xc xc
C. Elevation
xc
D. Plan view - ans-D. Plan view
xc xc xc xc xc xc
Thrust blocks shall be placed against:
xc xc xc xc xc
A. the top of the pipe.
xc xc xc xc xc
B. the side of the pipe.
xc xc xc xc xc
C. undisturbed soil.
xc xc
D. compacted soil. - ans-D. compacted soil.
xc xc xc xc xc xc
What type of working application should be used on a slip-on flange?
xc xc xc xc xc xc xc xc xc xc xc
A. Fillet-weld
xc
B. Stitch-weld
xc
C. Butt-weld
xc
D. Socket-weld - ans-A. Fillet-weld
xc xc xc xc
,While installing a 3- xc xc xc
inch diameter pipe run under a beam, beam clamps and clevis hangers are used. The R
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
EQUIRED centerline elevation for the pipe is 22 feet at both beams. What is the BOP ele
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
vation for the 3-inch pipe? xc xc xc xc
A. 21 feet 9 ¾ inches
xc xc xc xc xc
B. 21 feet 10 ¼ inches
xc xc xc xc xc
C. 22 feet
xc xc
D. 22 feet 1 ¾ inches - ans-B. 21 feet 10 ¼ inches
xc xc xc xc xc xc xc xc xc xc xc xc
A line drawn along the surface of the pipe at division points that serves as a guide for cutt
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ing miters and making contours is known as:
xc xc xc xc xc xc xc
A. centerline.
xc
B. an ordinate line.
xc xc xc
C. a piece mark.
xc xc xc
D. a chalk line. - ans-B. an ordinate line.
xc xc xc xc xc xc xc xc
Find the lowest common denominator for 1/8 and 1/2.
xc xc xc xc xc xc xc xc
A. 3 xc
B. 5 xc
C. 7 xc
D. 8 - ans-D. 8
xc xc xc xc
What is the purpose of a high-point vent during hydrotesting?
xc xc xc xc xc xc xc xc xc
A. To maintain and control water pressure in the upper part of the pipe
xc xc xc xc xc xc xc xc xc xc xc xc xc
B. To bleed out the air from the system that is being hydrated
xc xc xc xc xc xc xc xc xc xc xc xc
C. To control the directional flow of pressurized water through the pipe
xc xc xc xc xc xc xc xc xc xc xc
D. To serve as an entry point for filling the pipe with hydrotest water - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
B. To bleed out the air from the system that is being hydrated
xc xc xc xc xc xc xc xc xc xc xc xc
Where on the drawing would the information for latest revision, engineering firm, and dra
xc xc xc xc xc xc xc xc xc xc xc xc xc
wing number be found?
xc xc xc
A. Title block
xc xc
B. Index
xc
C. Header
xc
D. Notes - ans-A. Title block
xc xc xc xc xc
Where should steam traps be installed on a steam tracing system?
xc xc xc xc xc xc xc xc xc xc
A. Highest point
xc xc
B. Lowest point
xc xc
C. Mid-point
xc
D. Originating point - ans-B. Lowest point
xc xc xc xc xc xc
What is the difference between an 8 in. 300# flange and an 8 in. 150# flange?
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
A. A 300# flange weighs twice as much as a 150# flange
xc xc xc xc xc xc xc xc xc xc xc
B. A 300# flange is raised-face and a 150# flange is flat-face
xc xc xc xc xc xc xc xc xc xc xc
, C. A 300# flange has twice as many bolts as a 150# flange
xc xc xc xc xc xc xc xc xc xc xc xc
D. A 300# flange has a different pressure rating than a 150# flange - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
D. A 300# flange has a different pressure rating than a 150# flange
xc xc xc xc xc xc xc xc xc xc xc xc
A drawing that shows all equipment, pipelines, valves, instruments and controls of a syst
xc xc xc xc xc xc xc xc xc xc xc xc xc
em is referred to as a(n):
xc xc xc xc xc
A. isometric
xc
B. orthographic
xc
C. P & ID xc xc xc
D. spool - ans-C. P & ID
xc xc xc xc xc xc
An eccentric dummy support welded on the back of a long radius 90-
xc xc xc xc xc xc xc xc xc xc xc xc
degree elbow is laid out: xc xc xc xc
A. on the centerline of the elbow.
xc xc xc xc xc xc
B. only on the outside radius of the elbow.
xc xc xc xc xc xc xc xc
C. on the inside or the outside radius of the elbow.
xc xc xc xc xc xc xc xc xc xc
D. only on the inside radius of the elbow. - ans-B. only on the outside radius of the elbow.
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
Which type of eyebolt is preferred for angular lifting or horizontal pulling?
xc xc xc xc xc xc xc xc xc xc xc
A. Shoulderless eyebolt
xc xc
B. Shoulder type eyebolt
xc xc xc
C. Ringbolt
xc
D. Swivel eyebolt - ans-D. Swivel eyebolt
xc xc xc xc xc xc
When bolting a pair of flanges that will NOT line up, what tool should be used to assist in
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
lining up the flanges? xc xc xc
A. Two-hole pin
xc xc
B. Drift pin
xc xc
C. Screwdriver
xc
D. Hi-lo gauge - ans-B. Drift pin
xc xc xc xc xc xc
Which flanges REQUIRE a full-face gasket?
xc xc xc xc xc
A. Raised face flanges
xc xc xc
B. Flat-face flanges
xc xc
C. Ring-joint
xc
D. Tongue and groove flanges - ans-B. Flat-face flanges
xc xc xc xc xc xc xc xc
A valve is being rigged for installation in a vertical line. The valve should be rigged so tha
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
t the flange faces of the valve are:
xc xc xc xc xc xc xc
A. 45 degrees from horizontal.
xc xc xc xc
B. vertical.
xc
C. horizontal.
xc
D. 45 degrees from vertical. - ans-C. horizontal.
xc xc xc xc xc xc xc
What is center to end length on a 3,000# 2" SW 90 ELL?
xc xc xc xc xc xc xc xc xc xc xc xc
A. 2" xc
ANSWERS
When using shoring to support walls in an evacuation, which of the following would NOT
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
be used?
xc
A. Upright
xc
B. Wales
xc
C. Cross braces
xc xc
D. Soil anchor - ans-B. Wales
xc xc xc xc xc
What is used to reduce or increase pipe sizes in threaded pipelines?
xc xc xc xc xc xc xc xc xc xc xc
A. Unions
xc
B. Couplings
xc
C. Bushings
xc
D. Nipples - ans-C. Bushings
xc xc xc xc
Chain come-alongs are PRIMARILY designed for:
xc xc xc xc xc
A. Lifting in close quarters.
xc xc xc xc
B. Vertical lifting.
xc xc
C. Lifting in any location.
xc xc xc xc
D. Horizontal lifting. - ans-D. Horizontal lifting.
xc xc xc xc xc xc
A piping and instrumentation drawing would show which of the following?
xc xc xc xc xc xc xc xc xc xc
A. Direction of flow
xc xc xc
B. Bill of material
xc xc xc
C. Elevation
xc
D. Plan view - ans-D. Plan view
xc xc xc xc xc xc
Thrust blocks shall be placed against:
xc xc xc xc xc
A. the top of the pipe.
xc xc xc xc xc
B. the side of the pipe.
xc xc xc xc xc
C. undisturbed soil.
xc xc
D. compacted soil. - ans-D. compacted soil.
xc xc xc xc xc xc
What type of working application should be used on a slip-on flange?
xc xc xc xc xc xc xc xc xc xc xc
A. Fillet-weld
xc
B. Stitch-weld
xc
C. Butt-weld
xc
D. Socket-weld - ans-A. Fillet-weld
xc xc xc xc
,While installing a 3- xc xc xc
inch diameter pipe run under a beam, beam clamps and clevis hangers are used. The R
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
EQUIRED centerline elevation for the pipe is 22 feet at both beams. What is the BOP ele
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
vation for the 3-inch pipe? xc xc xc xc
A. 21 feet 9 ¾ inches
xc xc xc xc xc
B. 21 feet 10 ¼ inches
xc xc xc xc xc
C. 22 feet
xc xc
D. 22 feet 1 ¾ inches - ans-B. 21 feet 10 ¼ inches
xc xc xc xc xc xc xc xc xc xc xc xc
A line drawn along the surface of the pipe at division points that serves as a guide for cutt
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
ing miters and making contours is known as:
xc xc xc xc xc xc xc
A. centerline.
xc
B. an ordinate line.
xc xc xc
C. a piece mark.
xc xc xc
D. a chalk line. - ans-B. an ordinate line.
xc xc xc xc xc xc xc xc
Find the lowest common denominator for 1/8 and 1/2.
xc xc xc xc xc xc xc xc
A. 3 xc
B. 5 xc
C. 7 xc
D. 8 - ans-D. 8
xc xc xc xc
What is the purpose of a high-point vent during hydrotesting?
xc xc xc xc xc xc xc xc xc
A. To maintain and control water pressure in the upper part of the pipe
xc xc xc xc xc xc xc xc xc xc xc xc xc
B. To bleed out the air from the system that is being hydrated
xc xc xc xc xc xc xc xc xc xc xc xc
C. To control the directional flow of pressurized water through the pipe
xc xc xc xc xc xc xc xc xc xc xc
D. To serve as an entry point for filling the pipe with hydrotest water - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
B. To bleed out the air from the system that is being hydrated
xc xc xc xc xc xc xc xc xc xc xc xc
Where on the drawing would the information for latest revision, engineering firm, and dra
xc xc xc xc xc xc xc xc xc xc xc xc xc
wing number be found?
xc xc xc
A. Title block
xc xc
B. Index
xc
C. Header
xc
D. Notes - ans-A. Title block
xc xc xc xc xc
Where should steam traps be installed on a steam tracing system?
xc xc xc xc xc xc xc xc xc xc
A. Highest point
xc xc
B. Lowest point
xc xc
C. Mid-point
xc
D. Originating point - ans-B. Lowest point
xc xc xc xc xc xc
What is the difference between an 8 in. 300# flange and an 8 in. 150# flange?
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
A. A 300# flange weighs twice as much as a 150# flange
xc xc xc xc xc xc xc xc xc xc xc
B. A 300# flange is raised-face and a 150# flange is flat-face
xc xc xc xc xc xc xc xc xc xc xc
, C. A 300# flange has twice as many bolts as a 150# flange
xc xc xc xc xc xc xc xc xc xc xc xc
D. A 300# flange has a different pressure rating than a 150# flange - ans-
xc xc xc xc xc xc xc xc xc xc xc xc xc xc
D. A 300# flange has a different pressure rating than a 150# flange
xc xc xc xc xc xc xc xc xc xc xc xc
A drawing that shows all equipment, pipelines, valves, instruments and controls of a syst
xc xc xc xc xc xc xc xc xc xc xc xc xc
em is referred to as a(n):
xc xc xc xc xc
A. isometric
xc
B. orthographic
xc
C. P & ID xc xc xc
D. spool - ans-C. P & ID
xc xc xc xc xc xc
An eccentric dummy support welded on the back of a long radius 90-
xc xc xc xc xc xc xc xc xc xc xc xc
degree elbow is laid out: xc xc xc xc
A. on the centerline of the elbow.
xc xc xc xc xc xc
B. only on the outside radius of the elbow.
xc xc xc xc xc xc xc xc
C. on the inside or the outside radius of the elbow.
xc xc xc xc xc xc xc xc xc xc
D. only on the inside radius of the elbow. - ans-B. only on the outside radius of the elbow.
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
Which type of eyebolt is preferred for angular lifting or horizontal pulling?
xc xc xc xc xc xc xc xc xc xc xc
A. Shoulderless eyebolt
xc xc
B. Shoulder type eyebolt
xc xc xc
C. Ringbolt
xc
D. Swivel eyebolt - ans-D. Swivel eyebolt
xc xc xc xc xc xc
When bolting a pair of flanges that will NOT line up, what tool should be used to assist in
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
lining up the flanges? xc xc xc
A. Two-hole pin
xc xc
B. Drift pin
xc xc
C. Screwdriver
xc
D. Hi-lo gauge - ans-B. Drift pin
xc xc xc xc xc xc
Which flanges REQUIRE a full-face gasket?
xc xc xc xc xc
A. Raised face flanges
xc xc xc
B. Flat-face flanges
xc xc
C. Ring-joint
xc
D. Tongue and groove flanges - ans-B. Flat-face flanges
xc xc xc xc xc xc xc xc
A valve is being rigged for installation in a vertical line. The valve should be rigged so tha
xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc xc
t the flange faces of the valve are:
xc xc xc xc xc xc xc
A. 45 degrees from horizontal.
xc xc xc xc
B. vertical.
xc
C. horizontal.
xc
D. 45 degrees from vertical. - ans-C. horizontal.
xc xc xc xc xc xc xc
What is center to end length on a 3,000# 2" SW 90 ELL?
xc xc xc xc xc xc xc xc xc xc xc xc
A. 2" xc
