METHODOLOGICALLY ORGANIZED SYNTHESIS OF KEY
CONCEPTS FOR HIGH-LEVEL ASSESSMENT
When are steel chain slings recommended? - correct answer -When rigging from three points
A big control valve is pulled who is responsible for the rigging? - correct 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? - correct 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? - correct answer -Choker Hitch
When should rigging material be attached to a bean that is being demolished? - correct 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? - correct answer -
Asbestos
Which type of insulation is required before a vessel is entered? - correct 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? - correct answer -20 Ft
,What is the first thing a boilermaker should do before cutting into a tank or vessel? - correct
answer -Determine the content
What tool is normally used to check the alignment on the horizontal seams of the shell plates? -
correct answer -A 2-foot level
What is used to expand tubes inside mud and steam drums? - correct answer -Rolling motors
and espanders
What does a grooved nut on an Acetylene rig indicate? - correct answer -The left hand thread is
for acetylene use only
Thermal beveling of pipe in preparation for welding requires use of an? - correct 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? - correct answer -Acetylene is unstable above this pressure
What action should be taken if a boiler tube fails? - correct answer -Replace the failed tube
Before a wall burner is pulled for inspection - correct answer -The fuel gas valve must be shut
Which of the following is a type of insulation used inside furnaces? - correct answer -Fire Brick
What does "MTW" mean in reference to boiler tubing? - correct answer -Minimum Wall
Thickness
, On a drawing, what is used to record any changes to the drawing? - correct answer -Revision
Block
Scales on a drawing are usually written in - correct answer -inches and feet
Dimensional measurements can be found on all of the following except - correct answer -
Mechanical flow diagram
All vessels elevations are taken from the - correct 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? - correct answer -Valve must be in closed position
What is a spud wrench most commonly used for? - correct answer -Aligning flanges
What type of valves are typically used on a sight glass to direct flow? - correct answer -3 way
valves
Handhole cap and plug material is verified by the - correct answer -P4 report
What are the four major components of a gate valve? - correct answer -Body, Bonnet, gate, and
stem
What is the most commonly used fasteners in boiler construction? - correct answer -Threaded
On site, who determines what grade of material to be used for repair? - correct answer -QA/QC