PIPEFITTER STAR EXAM WITH QUESTIONS
AND VERIFIED ANSWERS|| ALREADY
GRADED A+|| GUARANTEED PASS|| LATEST
VERSION 2025
What should be done to prepare a flange for the gasket installation?
a. grind the flange faces smooth
b. lubricated the flange faces
c. nothing because the faces are prepared at the factory
d. remove any paint, rust, and debris - ANSWER-d. remove any paint, rust, and
debris
At what pipe size does the nominal sizing change from inside diameter to
outside diameter?
a. 8"
b. 10"
c. 12"
d. 14" - ANSWER-d. 14"
To assemble a four-bolt flange
a. set up opposite bolts fairly tight, and then tighten the bolts equally in a
crossing pattern
b. tighten all bolts firmly in a clockwise manner
,c. start the nuts and tighten all bolts in a counterclockwise manner.
d. tighten the top bolt firmly, followed by the side bolts, and finish with the
bottom bolt - ANSWER-a. set up opposite bolts fairly tight, and then tighten the
bolts equally in a crossing pattern
A non- condensable in a refrigeration system is _________.
a. carbon dioxide
b. ammonia
c. r-22
d. air - ANSWER-d. air
The component on a refrigeration system that receives superheated vapor is the
________.
a. evaporator
b. condenser
c. compressor
d. expansion device - ANSWER-c. compressor.
ACR tube is measured ______
a. nominally
b. on the inside diameter
c. on the outside diameter
d. pressure class - ANSWER-c. on the outside diameter
ACR tube stands for
a. air conditioning and refrigeration
b. 1
c. 2
,d. 3 - ANSWER-a. air conditioning and refrigeration
MSDS stands for _____
*your test does not know that SDS is the system now*
a. Manufacturer's Safety Data Sheet
b. Manufacturer's System Data Sheet
c. Material Safety Data Sheet
c. Material System Data Sheet - ANSWER-c. Material Safety Data Sheet
An extension ladder must extend ______ feet above the landing.
a. 3
b. 4
c. 5
d. 6 - ANSWER-a. 3
An occupant in an excavation must have an exit point within ______ feet
a. 10
b. 15
c. 20
d. 25 - ANSWER-d. 25
A single line on a piping drawing represents the _____ of the pipe
a. top
b. bottom
c. center
d. nearest wall - ANSWER-c. center
, How many directions are on an isometric compass?
a. 2
b. 4
c. 6
d. 8 - ANSWER-c. 6
A control valve with two inlets and one outlet is a ________.
a. mixing valve
b. diverting valve
c. pressure independent valve.
d. balancing valve - ANSWER-a. mixing valve
A control valve may be bypassed with a ________ valve.
a. gate
b. plug
c. ball
d. globe - ANSWER-d. globe
Whena. valve is marked "200", this represents the _______
a. bolt pattern
b. safe working pressure
c. operating pressure
d. weight - ANSWER-c. operating pressure
When is it safe to re-pack a valve when it is under pressure?
a. when the valve is fully open
AND VERIFIED ANSWERS|| ALREADY
GRADED A+|| GUARANTEED PASS|| LATEST
VERSION 2025
What should be done to prepare a flange for the gasket installation?
a. grind the flange faces smooth
b. lubricated the flange faces
c. nothing because the faces are prepared at the factory
d. remove any paint, rust, and debris - ANSWER-d. remove any paint, rust, and
debris
At what pipe size does the nominal sizing change from inside diameter to
outside diameter?
a. 8"
b. 10"
c. 12"
d. 14" - ANSWER-d. 14"
To assemble a four-bolt flange
a. set up opposite bolts fairly tight, and then tighten the bolts equally in a
crossing pattern
b. tighten all bolts firmly in a clockwise manner
,c. start the nuts and tighten all bolts in a counterclockwise manner.
d. tighten the top bolt firmly, followed by the side bolts, and finish with the
bottom bolt - ANSWER-a. set up opposite bolts fairly tight, and then tighten the
bolts equally in a crossing pattern
A non- condensable in a refrigeration system is _________.
a. carbon dioxide
b. ammonia
c. r-22
d. air - ANSWER-d. air
The component on a refrigeration system that receives superheated vapor is the
________.
a. evaporator
b. condenser
c. compressor
d. expansion device - ANSWER-c. compressor.
ACR tube is measured ______
a. nominally
b. on the inside diameter
c. on the outside diameter
d. pressure class - ANSWER-c. on the outside diameter
ACR tube stands for
a. air conditioning and refrigeration
b. 1
c. 2
,d. 3 - ANSWER-a. air conditioning and refrigeration
MSDS stands for _____
*your test does not know that SDS is the system now*
a. Manufacturer's Safety Data Sheet
b. Manufacturer's System Data Sheet
c. Material Safety Data Sheet
c. Material System Data Sheet - ANSWER-c. Material Safety Data Sheet
An extension ladder must extend ______ feet above the landing.
a. 3
b. 4
c. 5
d. 6 - ANSWER-a. 3
An occupant in an excavation must have an exit point within ______ feet
a. 10
b. 15
c. 20
d. 25 - ANSWER-d. 25
A single line on a piping drawing represents the _____ of the pipe
a. top
b. bottom
c. center
d. nearest wall - ANSWER-c. center
, How many directions are on an isometric compass?
a. 2
b. 4
c. 6
d. 8 - ANSWER-c. 6
A control valve with two inlets and one outlet is a ________.
a. mixing valve
b. diverting valve
c. pressure independent valve.
d. balancing valve - ANSWER-a. mixing valve
A control valve may be bypassed with a ________ valve.
a. gate
b. plug
c. ball
d. globe - ANSWER-d. globe
Whena. valve is marked "200", this represents the _______
a. bolt pattern
b. safe working pressure
c. operating pressure
d. weight - ANSWER-c. operating pressure
When is it safe to re-pack a valve when it is under pressure?
a. when the valve is fully open
