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DC BOILER EXAM ACTUAL EXAM COMPLETE 240 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||ALREADY GRADED A+
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DC BOILER EXAM 2026-2027 ACTUAL EXAM
COMPLETE 240 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||ALREADY GRADED A+
The setting or adjusting of a safety valve should only be done by
a ___. - ANSWER- qualified person who is familiar with the
construction and operation of the safety valve
The ___ is the operating pressure of a boiler as determined by
the design and construction of the boiler in conformance with
the ASME Code. - ANSWER- maximum allowable working
pressure
The safety valve on a boiler must be capable of discharging all
the steam the boiler can generate without the pressure increasing
more than ___ above the MAWP. - ANSWER- 6%
A(n) ___ test is a safety valve test performed to determine if a
safety valve opens at the correct pressure. - ANSWER- pop
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A fitting is a ___ and is required for the operation of the boiler. -
ANSWER- component directly attached to a boiler
Steam boilers having more than ___ sq ft of heating surface
require two or more safety valves. - ANSWER- 500
___ is the predetermined pressure at which a safety valve opens
and remains open until the pressure drops. - ANSWER- Popping
pressure
Electric boilers exceeding ___ kW of input require two safety
valves. - ANSWER- 500
Drains are placed at the lower section of safety valve discharge
piping to ___. - ANSWER- remove any condensation that may
form
A(n) ___ test is used to establish the relief capacity of boiler
safety valves. - ANSWER- accumulation
The ___ is the part on a safety valve that increases the area of
the safety valve disc to increase the total force. - ANSWERhuddling chamber
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Safety valve ___ is a drop in pressure between popping pressure
and reseating pressure as a safety valve relieves boiler
overpressure. - ANSWER- blowdown
Boiler safety valves are placed ___ of the boiler. - ANSWER- at
the highest part of the steam space
The safety valve ___ is the amount of steam that can be relieved
by a safety valve. - ANSWER- capacity
The boiler vent is located at the ___. - ANSWER- highest part
of the steam side of the boiler
Cyclone separators are used to ___. - ANSWER- separate water
droplets from steam
The ASME code will allow an automatic nonreturn valve to be
used in place of one of the main steam stop valves. If a
nonreturn valve is used, it must be ___. - ANSWER- located
between the main steam stop valve and boiler shell
When cutting a boiler equipped with hand-operated main steam
stop valves in on-line, the steam pressure on the incoming boiler
___. - ANSWER- should be slightly lower than line pressure
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A ___ valve should be used as the main steam stop valve. -
ANSWER- gate
A steam separator is used to improve the quality of steam in
order to ___. - ANSWER- prevent damage from water hammer
Hydrostatic pressure is caused by ___. - ANSWER- the weight
of a column of water
A(n) ___ is located at the lowest part of the water side of a
firetube boiler or the mud drum of a watertube boiler so that
sludge and sediment can be removed from the bottom of the
boiler. - ANSWER- bottom blowdown valve
A steam pressure gauge must be protected by a(n) ___ to
prevent steam from damaging the gauge. - ANSWER- steam
siphon
Saturated steam is steam that is ___. - ANSWER- in equilibrium
with water at the same temperature and pressure
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