BOILERMAKER MAINTENANCE NCCER EXAM (actual
2025) WITH CORRECT verified ANSWERS
At what angle is a chain fall usually used?
Vertical
Pipeline PNID ask for what size the main line is
12"
What does the PNID ask for material
A-335
The pressure of 1" and 10" pipe when both are 20' tall?
The pressure is both the same
When making a threaded connection and it stops on second thread?
Stop something is wrong
When using a sealing ring on heat exchangers what material is used to seal off in between the floating
tube sheet and test ring?
Permatex
For duct bolted together there is usually some kind of?
Gasket
, In the end of a tube sheet of an exchanger had been smashed this is caused by all of the following
except?
partition plate being too short
Which of the following should be removed when pressure testing the vessel
Relief valve
All of the following are safety hazards associated with vessel confined space except?
Improper inspection
Valves used to relief pressure in a pipe line?
Safety valve
What tool can be used to generate force making tightening amid loosing easier?
Impact
Title blocks are found where?
Bottom right corner
Taps are used to cut what type of threads?
Internal
Oxyfuel torch what valve must be turned off first?
Acetylene
2025) WITH CORRECT verified ANSWERS
At what angle is a chain fall usually used?
Vertical
Pipeline PNID ask for what size the main line is
12"
What does the PNID ask for material
A-335
The pressure of 1" and 10" pipe when both are 20' tall?
The pressure is both the same
When making a threaded connection and it stops on second thread?
Stop something is wrong
When using a sealing ring on heat exchangers what material is used to seal off in between the floating
tube sheet and test ring?
Permatex
For duct bolted together there is usually some kind of?
Gasket
, In the end of a tube sheet of an exchanger had been smashed this is caused by all of the following
except?
partition plate being too short
Which of the following should be removed when pressure testing the vessel
Relief valve
All of the following are safety hazards associated with vessel confined space except?
Improper inspection
Valves used to relief pressure in a pipe line?
Safety valve
What tool can be used to generate force making tightening amid loosing easier?
Impact
Title blocks are found where?
Bottom right corner
Taps are used to cut what type of threads?
Internal
Oxyfuel torch what valve must be turned off first?
Acetylene
