BOILERMAKER NCCR EXAM 2024 COMPLETE 200
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT) /ALREADY GRADED A+
When are steel chain slings recommended? - ANSWER: When rigging from three
points
A big control valve is pulled who is responsible for the rigging? - ANSWER: Crane
operator and rigger
What should be used to hold the pipe when setting up two 40-foot joints of 16-inch
STD WT pipe? - ANSWER: 4 legged roller top jacks
The hitch made by wrapping the sling around the load, then passing one eye of the
sling throughout a shackle is called? - ANSWER: Choker Hitch
When should rigging material be attached to a bean that is being demolished? -
ANSWER: Before any bolts are removed or any cutting is done on the beam.
Which of the following has a greater possibility of being a respiratory hazard? -
ANSWER: Asbestos
Which type of insulation is required before a vessel is entered? - ANSWER: Locking,
Tagging, and Blinding lines that feed the vessel
According to OSHA, oxygen and acetylene cylinders in storage must be separated at
what minimum distance? - ANSWER: 20 Ft
What is the first thing a boilermaker should do before cutting into a tank or vessel? -
ANSWER: Determine the content
What tool is normally used to check the alignment on the horizontal seams of the
shell plates? - ANSWER: A 2-foot level
What is used to expand tubes inside mud and steam drums? - ANSWER: Rolling
motors and espanders
What does a grooved nut on an Acetylene rig indicate? - ANSWER: The left hand
thread is for acetylene use only
Thermal beveling of pipe in preparation for welding requires use of an? - ANSWER:
Oxyfuel Torch
A 1-inch plate is to be cut. Why should an acetylene gerulator on a cutting rig not be
adjusted over 15 PSI? - ANSWER: Acetylene is unstable above this pressure
, What action should be taken if a boiler tube fails? - ANSWER: Replace the failed tube
Before a wall burner is pulled for inspection - ANSWER: The fuel gas valve must be
shut
Which of the following is a type of insulation used inside furnaces? - ANSWER: Fire
Brick
What does "MTW" mean in reference to boiler tubing? - ANSWER: Minimum Wall
Thickness
On a drawing, what is used to record any changes to the drawing? - ANSWER:
Revision Block
Scales on a drawing are usually written in - ANSWER: inches and feet
Dimensional measurements can be found on all of the following except - ANSWER:
Mechanical flow diagram
All vessels elevations are taken from the - ANSWER: top of steel on the embed ring
(base plate)
A gate valve is being removed from a product line. All of the following procedures
must be performed except? - ANSWER: Valve must be in closed position
What is a spud wrench most commonly used for? - ANSWER: Aligning flanges
What type of valves are typically used on a sight glass to direct flow? - ANSWER: 3
way valves
Handhole cap and plug material is verified by the - ANSWER: P4 report
What are the four major components of a gate valve? - ANSWER: Body, Bonnet,
gate, and stem
What is the most commonly used fasteners in boiler construction? - ANSWER:
Threaded
On site, who determines what grade of material to be used for repair? - ANSWER:
QA/QC
What is the best tool to be used to prepare XXH 2-inch tubing for welding? -
ANSWER: Milling Motor
All of the following tools are used in preparation of the butt weld of a tube except? -
ANSWER: Chipping Gun
QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT) /ALREADY GRADED A+
When are steel chain slings recommended? - ANSWER: When rigging from three
points
A big control valve is pulled who is responsible for the rigging? - ANSWER: Crane
operator and rigger
What should be used to hold the pipe when setting up two 40-foot joints of 16-inch
STD WT pipe? - ANSWER: 4 legged roller top jacks
The hitch made by wrapping the sling around the load, then passing one eye of the
sling throughout a shackle is called? - ANSWER: Choker Hitch
When should rigging material be attached to a bean that is being demolished? -
ANSWER: Before any bolts are removed or any cutting is done on the beam.
Which of the following has a greater possibility of being a respiratory hazard? -
ANSWER: Asbestos
Which type of insulation is required before a vessel is entered? - ANSWER: Locking,
Tagging, and Blinding lines that feed the vessel
According to OSHA, oxygen and acetylene cylinders in storage must be separated at
what minimum distance? - ANSWER: 20 Ft
What is the first thing a boilermaker should do before cutting into a tank or vessel? -
ANSWER: Determine the content
What tool is normally used to check the alignment on the horizontal seams of the
shell plates? - ANSWER: A 2-foot level
What is used to expand tubes inside mud and steam drums? - ANSWER: Rolling
motors and espanders
What does a grooved nut on an Acetylene rig indicate? - ANSWER: The left hand
thread is for acetylene use only
Thermal beveling of pipe in preparation for welding requires use of an? - ANSWER:
Oxyfuel Torch
A 1-inch plate is to be cut. Why should an acetylene gerulator on a cutting rig not be
adjusted over 15 PSI? - ANSWER: Acetylene is unstable above this pressure
, What action should be taken if a boiler tube fails? - ANSWER: Replace the failed tube
Before a wall burner is pulled for inspection - ANSWER: The fuel gas valve must be
shut
Which of the following is a type of insulation used inside furnaces? - ANSWER: Fire
Brick
What does "MTW" mean in reference to boiler tubing? - ANSWER: Minimum Wall
Thickness
On a drawing, what is used to record any changes to the drawing? - ANSWER:
Revision Block
Scales on a drawing are usually written in - ANSWER: inches and feet
Dimensional measurements can be found on all of the following except - ANSWER:
Mechanical flow diagram
All vessels elevations are taken from the - ANSWER: top of steel on the embed ring
(base plate)
A gate valve is being removed from a product line. All of the following procedures
must be performed except? - ANSWER: Valve must be in closed position
What is a spud wrench most commonly used for? - ANSWER: Aligning flanges
What type of valves are typically used on a sight glass to direct flow? - ANSWER: 3
way valves
Handhole cap and plug material is verified by the - ANSWER: P4 report
What are the four major components of a gate valve? - ANSWER: Body, Bonnet,
gate, and stem
What is the most commonly used fasteners in boiler construction? - ANSWER:
Threaded
On site, who determines what grade of material to be used for repair? - ANSWER:
QA/QC
What is the best tool to be used to prepare XXH 2-inch tubing for welding? -
ANSWER: Milling Motor
All of the following tools are used in preparation of the butt weld of a tube except? -
ANSWER: Chipping Gun
