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Exam (elaborations)

Boiler Operator Licensing Exam Verified 100% Correct!!

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Boiler Operator Licensing Exam Verified 100% Correct!!

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  • August 26, 2024
  • 43
  • 2024/2025
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127 Multiple choice questions

Term 1 of 127
power outage

controls high & low fire

device that removes air & condensate without loss of steam

causes loss of pumps & draft fans

causes overheating & failure of the tubes

Term 2 of 127
stay examples

orifice, rod, impingement, segmental

rod, girder, longitudinal, gusset, bolt, sling

rolled or welded

boiler water carried into steam lines

Term 3 of 127
Wetback boiler

large enough for an employee to enter, not designed for continuous employee access, &
restricted in means for entry & exit

used to support flat surfaces in a boiler, the internal pressure will be contained without
distortion


water cooled turn around chamber directs gases of combustion from the furnace to the
tube bank, firetube


water is carried along the steam lines & hits elbows, valves, or other obstructions

,Term 4 of 127
change in composition of fuel

improves fuel combustion efficiency

causes creation or increase in soot deposits on tubes causing excessively high temperature
on tube walls

enhances fuel storage stability


reduces engine noise levels

Term 5 of 127
Flash point

Lower than the fire point of fuel oil

Controls the amount of fire in the burner

Depends on the operation of a float controlled valve


Must be connected to the highest part of the steam side of the boiler

Definition 6 of 127
a high surface tension on top of the boiler water can lead to

Water Hammer

Foaming


Pitting

Priming

,Definition 7 of 127
found on the suction side of the fuel oil pump

Precoat filters

Coagulation

Wetback boiler


Duplex strainers

Term 8 of 127
Flash when exposed to an open flame

the flash point of fuel oil is the minimum temperature at which the fuel will

can cause burns or injuries, explosion in firebox, damage to internal components,
exceeding regulatory opacity limits

the fire point of fuel oil is the minimum temperature at which the fuel will

when the boiler low water alarm is ringing, the operator should

Term 9 of 127
Furnace explosion

Controls the amount of fire in the burner


Can be caused by an accumulation of vapors

Can become steambound if feedwater temperature is too high

When performing a hydrostatic test on a boiler

, Definition 10 of 127
if water comes out of the top try cock, the operator must

Inside tube surface

Blowdown the boiler

poor control of air


Burn continually

Definition 11 of 127
the water column on a low pressure steam boiler reduces the

Blowdown the boiler

Turbulence in the gauge glass


Inside tube surface

Rotating cup & primary air

Definition 12 of 127
the induced draft fan is located between the boiler & the

Draft


Chimney

Roof Drainage System

Anthracite

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