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Exam (elaborations)

BOILER MAKER – QUESTIONS WITH SOLUTIONS

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BOILER MAKER – QUESTIONS WITH SOLUTIONS

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  • December 18, 2023
  • 16
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
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BOILER MAKER – QUESTIONS WITH SOLUTIONS
When are steel chain slings recommended ? ✔️Ans - in high heat
conditions

A big control valve is pulled, who's responsible for the rigging ? ✔️Ans -
the rigger and the crane operator

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 the sling
through a shackle is called? ✔️Ans - chocker hitch

When should rigging material be attached to a beam 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 isolation is required before a vessel is entered? ✔️Ans -
lockout, ragout, and blinding the lines that feed the vessel

According to OSHA oxygen and acetylene cylinders in storage must be
separated at a minimum distance of ? ✔️Ans - 20ft

What is the first thing that a boiler maker should do before cutting into a tank
or vessel? ✔️Ans - make sure the proper permit has been obtained

What tool is normally used to check the alignment on the horizontal seams the
shell plates? ✔️Ans - water level

What is used to expand tubes inside made and steam drums? ✔️Ans -
rolling motors and expanders

What does grooved nut on a acetylene rig indicate? ✔️Ans - the left tread is
for acetylene use only

,Thermal beveling of pipe in preparation for welding requires the use of an ?
✔️Ans - Oxyfuel torch

a 1-inch plate is to be cut, why should an acetylene generator 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? ✔️Ans - inches and feet

dimensional measurements can be found in all of the following except ?
✔️Ans - mechanical flow diagram

all vessel elevations are taken from the ? ✔️Ans - Top of the steel on the
embedded ring (base plate)

a gate valve is being removed from a product line, all of the following
procedures must be preformed except ? ✔️Ans - valve must be in closed
position

what is a stud wrench most commonly used for? ✔️Ans - aligning flanges

what type of valves are typically used on a sight glass to direct flow? ✔️Ans
- way valves

, hand hole cap and plug material is verified by the ? ✔️Ans - material test
report

what are four major components of a gate valve? ✔️Ans - body, bonnet,
gate, and stream

what is the most commonly used fastener in boiler constructions? ✔️Ans -
threaded

on site, who determines what grade of material to be used for a repair?
✔️Ans - QC

what is the best tool to be used to prepare XXH2-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 preparations must be made for the spring can hangers of a section of a
pipe before hydro testing can be? ✔️Ans - put the travel stops in the spring

which of the following connecting the units are used on pipe hangers?
✔️Ans - eye bolts, turnbuckles, threaded rods

which of the following materials maybe used to safely secure scaffold boars to
platform? ✔️Ans - 9 inch wire

for high temperature service, one end of the stud should be ? ✔️Ans -
marked b16

how should bolts on a 8-bolt flange be bolted? ✔️Ans - in a cross over
pattern

what is the primary reason for high point vents in hydro testing ? ✔️Ans -
to purge air pockets

what are the most commonly used fasteners ? ✔️Ans - threaded bolts

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