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Nccer boilermaker maintenance Questions
and Correct Answers
Which organization requires a person to be trained to operate
personal lifting equipment Ans: — OSHA
Where would the usage of a RTJ Gasket be found Ans: — high
pressure system
All of the following are examples of internal manway hardware
except Ans: — Slide fastener
The fitting that makes it easy to dissemble threaded pipe is Ans:
— Union
What type of wrench measures how much a fastener is being
tightened Ans: — Torque
What is the purpose of a gasket? Ans: — to create a seal between 2
stationary parts
What is the first consideration when making a gasket Ans: —
material compatibility
In order to get the bundle to line up with the shell side gasket the
best tool to use to lift the bundle is a Ans: — drift pin
ring gaskets may be affected by all of the following except Ans: —
Number of bolts
Which way should the teeth face on a hacksaw blade Ans: — Away
from handle
Pressure of a 1" and 10" pipe when both are 20" tall Ans: — The
pressure is both the same
When making a threaded connection and it stops on 2nd thread....
Ans: — Stop, something is wrong
When using a sealing ring on heat exchanger, what material is used
to seal off in between the floating tube sheet and test ring? Ans: —
Permatex
© 2025 All rights reserved
, 2 | Page
For duct bolted together there is usually some kind of Ans: —
gasket
If the end of a tube sheet of an exchanger has been smashed this is
caused by all of the following except Ans: — The partition plate
being to short
Which of the following should be removed when pressure testing
the vessel Ans: — relief valve
What components are attached to the baffle on an exchanger tube
bundle Ans: — Tie rods
All of the following are safety hazards associated with vessel
confined space except Ans: — improper inspection
Valves used to relieve pressure in a pipeline Ans: — safety valve
What tool can be used to generate force making tightening or
loosening easier Ans: — impact
Washers are used to prevent fasteners from marrying? Ans: —
surface
Title blocks are found where Ans: — Bottom right corner
The following threaded fitting requires a thread lubricant except
Ans: — rubber
Taps are used to cut what type of threads? Ans: — internal threads
chain hoist are primarily used for what type of lifting Ans: —
vertical lifting
Oxyfuel torch what valve must be turned off first Ans: —
Acetylene
What does SWL stand for? Ans: — Safe Working Load
On a variable can (spring can) support, when are the load straps
removed Ans: — Just prior to energizing the system
When rigging a valve the spring should be placed around the Ans:
— body
© 2025 All rights reserved
Nccer boilermaker maintenance Questions
and Correct Answers
Which organization requires a person to be trained to operate
personal lifting equipment Ans: — OSHA
Where would the usage of a RTJ Gasket be found Ans: — high
pressure system
All of the following are examples of internal manway hardware
except Ans: — Slide fastener
The fitting that makes it easy to dissemble threaded pipe is Ans:
— Union
What type of wrench measures how much a fastener is being
tightened Ans: — Torque
What is the purpose of a gasket? Ans: — to create a seal between 2
stationary parts
What is the first consideration when making a gasket Ans: —
material compatibility
In order to get the bundle to line up with the shell side gasket the
best tool to use to lift the bundle is a Ans: — drift pin
ring gaskets may be affected by all of the following except Ans: —
Number of bolts
Which way should the teeth face on a hacksaw blade Ans: — Away
from handle
Pressure of a 1" and 10" pipe when both are 20" tall Ans: — The
pressure is both the same
When making a threaded connection and it stops on 2nd thread....
Ans: — Stop, something is wrong
When using a sealing ring on heat exchanger, what material is used
to seal off in between the floating tube sheet and test ring? Ans: —
Permatex
© 2025 All rights reserved
, 2 | Page
For duct bolted together there is usually some kind of Ans: —
gasket
If the end of a tube sheet of an exchanger has been smashed this is
caused by all of the following except Ans: — The partition plate
being to short
Which of the following should be removed when pressure testing
the vessel Ans: — relief valve
What components are attached to the baffle on an exchanger tube
bundle Ans: — Tie rods
All of the following are safety hazards associated with vessel
confined space except Ans: — improper inspection
Valves used to relieve pressure in a pipeline Ans: — safety valve
What tool can be used to generate force making tightening or
loosening easier Ans: — impact
Washers are used to prevent fasteners from marrying? Ans: —
surface
Title blocks are found where Ans: — Bottom right corner
The following threaded fitting requires a thread lubricant except
Ans: — rubber
Taps are used to cut what type of threads? Ans: — internal threads
chain hoist are primarily used for what type of lifting Ans: —
vertical lifting
Oxyfuel torch what valve must be turned off first Ans: —
Acetylene
What does SWL stand for? Ans: — Safe Working Load
On a variable can (spring can) support, when are the load straps
removed Ans: — Just prior to energizing the system
When rigging a valve the spring should be placed around the Ans:
— body
© 2025 All rights reserved
