Boilermaker NCCR Test Questions and Correct Verified Answers
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
, Boilermaker NCCR Test Questions and Correct Verified Answers
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
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
, Boilermaker NCCR Test Questions and Correct Verified Answers
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
