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DC 3RD CLASS TEST, 3RD CLASS STATIONARY STEAM ENGINEER
LICENSE PREP, STATIONARY ENGINEER, STATION ENGINEER EXAM,
DC 1ST CLASS BOILER EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
three types of boiler feed water pumps are _____ - ANSWER-
reciprocating, centrifugal, and turbine
the most important fitting on a boiler is the______ - ANSWER-
safety valve
viscosity of fuel oil is a________ - ANSWER-measure of internal
resistance to flow
boiler water treatment is required to____ - ANSWER-prevent
scale formation on eating surfaces
the safety valve______ - ANSWER-prevents the boiler from
exceeding its mawp
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try cocks I used to________ - ANSWER-as a secondary means to
determine water level
a glass is used to ______ - ANSWER-indicate the water level in
the boiler
before using soap blowers, it is necessary to______ - ANSWER-
open the steam line on the soot blower
safety valve repair should be done by the________ - ANSWER-
safety valve manufacturer or an authorized representative
steam at a temperature of 350 degrees Fahrenheit and a
pressure of 50 psi is______ - ANSWER-superheated
a duplex double-acting reciprocating feed water pump has____ -
ANSWER-to steam Pistons 2 to 2 2/2 times larger in area than
the water piston
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an accumulation test is used to determine_______ - ANSWER-
safety valve capacity
a water tube boiler has 250 tubes that are 20 ft long and 3" in
diameter. if the boiler produces one BHP for every 10 sq ft of
heating surface, the maximum BHP it will produce is________
BHP - ANSWER-392
during a boiler inspection, the main steam stop valves are
_______ - ANSWER-closed, locked, and tagged
when a quick opening valve is used as a blowdown valve, it is
located ______ - ANSWER-between the boiler and slow opening
valve
listing lovers on safety valves are used to_____ - ANSWER-
manually test valves
the frequency of performing a bottom blowdown is determined by
______ - ANSWER-boiler Water Analysis
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normally a water column and gauge glass should be blown down
_____ - ANSWER-at the start of a shift in whenever and out of the
water level
a thermostatic trap opens when the____ - ANSWER-the Bellows
contract
an economizer located in the path of the gases of combustion
increased boiler efficiency approximately 1% for each ___°f rise in
feed water temperature - ANSWER-10
the purpose of a vent on the open feedwater heater is to _____ -
ANSWER-remove oxygen and non condensable gases
steam pressure gauges are calibrated in____ - ANSWER-pounds
per square inch
bottom blowdown lines are located______ - ANSWER-at the
lowest part of the water side of the boiler
DC 3RD CLASS TEST, 3RD CLASS STATIONARY STEAM ENGINEER
LICENSE PREP, STATIONARY ENGINEER, STATION ENGINEER EXAM,
DC 1ST CLASS BOILER EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
three types of boiler feed water pumps are _____ - ANSWER-
reciprocating, centrifugal, and turbine
the most important fitting on a boiler is the______ - ANSWER-
safety valve
viscosity of fuel oil is a________ - ANSWER-measure of internal
resistance to flow
boiler water treatment is required to____ - ANSWER-prevent
scale formation on eating surfaces
the safety valve______ - ANSWER-prevents the boiler from
exceeding its mawp
,2|Page
try cocks I used to________ - ANSWER-as a secondary means to
determine water level
a glass is used to ______ - ANSWER-indicate the water level in
the boiler
before using soap blowers, it is necessary to______ - ANSWER-
open the steam line on the soot blower
safety valve repair should be done by the________ - ANSWER-
safety valve manufacturer or an authorized representative
steam at a temperature of 350 degrees Fahrenheit and a
pressure of 50 psi is______ - ANSWER-superheated
a duplex double-acting reciprocating feed water pump has____ -
ANSWER-to steam Pistons 2 to 2 2/2 times larger in area than
the water piston
,3|Page
an accumulation test is used to determine_______ - ANSWER-
safety valve capacity
a water tube boiler has 250 tubes that are 20 ft long and 3" in
diameter. if the boiler produces one BHP for every 10 sq ft of
heating surface, the maximum BHP it will produce is________
BHP - ANSWER-392
during a boiler inspection, the main steam stop valves are
_______ - ANSWER-closed, locked, and tagged
when a quick opening valve is used as a blowdown valve, it is
located ______ - ANSWER-between the boiler and slow opening
valve
listing lovers on safety valves are used to_____ - ANSWER-
manually test valves
the frequency of performing a bottom blowdown is determined by
______ - ANSWER-boiler Water Analysis
, 4|Page
normally a water column and gauge glass should be blown down
_____ - ANSWER-at the start of a shift in whenever and out of the
water level
a thermostatic trap opens when the____ - ANSWER-the Bellows
contract
an economizer located in the path of the gases of combustion
increased boiler efficiency approximately 1% for each ___°f rise in
feed water temperature - ANSWER-10
the purpose of a vent on the open feedwater heater is to _____ -
ANSWER-remove oxygen and non condensable gases
steam pressure gauges are calibrated in____ - ANSWER-pounds
per square inch
bottom blowdown lines are located______ - ANSWER-at the
lowest part of the water side of the boiler
