Boilermaker NCCR Test
When are steel chain slings recommended? - ANS-When rigging from three points
A big control valve is pulled who is responsible for the rigging? - ANS-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? - ANS-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? - ANS-Choker Hitch
When should rigging material be attached to a bean that is being demolished? - ANS-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? - ANS-Asbestos
Which type of insulation is required before a vessel is entered? - ANS-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? - ANS-20 Ft
What is the first thing a boilermaker should do before cutting into a tank or vessel? -
ANS-Determine the content
What tool is normally used to check the alignment on the horizontal seams of the shell plates? -
ANS-A 2-foot level
What is used to expand tubes inside mud and steam drums? - ANS-Rolling motors and
espanders
What does a grooved nut on an Acetylene rig indicate? - ANS-The left hand thread is for
acetylene use only
Thermal beveling of pipe in preparation for welding requires use of an? - ANS-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? - ANS-Acetylene is unstable above this pressure
What action should be taken if a boiler tube fails? - ANS-Replace the failed tube
Before a wall burner is pulled for inspection - ANS-The fuel gas valve must be shut
, Which of the following is a type of insulation used inside furnaces? - ANS-Fire Brick
What does "MTW" mean in reference to boiler tubing? - ANS-Minimum Wall Thickness
On a drawing, what is used to record any changes to the drawing? - ANS-Revision Block
Scales on a drawing are usually written in - ANS-inches and feet
Dimensional measurements can be found on all of the following except - ANS-Mechanical flow
diagram
All vessels elevations are taken from the - ANS-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? - ANS-Valve must be in closed position
What is a spud wrench most commonly used for? - ANS-Aligning flanges
What type of valves are typically used on a sight glass to direct flow? - ANS-3 way valves
Handhole cap and plug material is verified by the - ANS-P4 report
What are the four major components of a gate valve? - ANS-Body, Bonnet, gate, and stem
What is the most commonly used fasteners in boiler construction? - ANS-Threaded
On site, who determines what grade of material to be used for repair? - ANS-QA/QC
What is the best tool to be used to prepare XXH 2-inch tubing for welding? - ANS-Milling Motor
All of the following tools are used in preparation of the butt weld of a tube except? -
ANS-Chipping Gun
What preparation must be made for the Spring-Can hangers of a section of a pipe before hydro
testing can be - ANS-No preparations must be made
Which of the following connecting units are used on pipe hangers? - ANS-Eye Bolts,
Turnbuckles, Threaded Rods
Which of the following materials may be used to safely secure scaffold boards to a platform? -
ANS-#9 Tie wire
For high temperature service, one end of a stud should be? - ANS-Marked B16
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