3RD CLASS STATIONARY STEAM ENGINEER LICENSE PREP QUESTIONS AND CORRECT VERIFIED ANSWERS

3RD CLASS STATIONARY STEAM
ENGINEER LICENSE PREP QUESTIONS
AND CORRECT VERIFIED ANSWERS
_________A2areA2necessaryA2forA2completeA2combustionA2-A2Ans--
time,A2temperature,A2mixture,A2andA2atomization

ifA2theA2steamA2pressureA2gaugeA2indicatesA2200A2PSIG,A2theA2absoluteA2pressureA2is___
___A2-A2Ans--214.7

aA2boilerA2isA2operatingA2atA2400A2PSI,A2andA2theA2safetyA2valveA2opensA2atA2410A2PSIA2an
dA2closesA2atA2398A2PSI.A2TheA2blowdownA2is______psiA2-A2Ans--12

anA2oilA2coolerA2isA2commonlyA2usedA2withA2a(n)A2________A2whenA2operatingA2inA2conju
nctionA2withA2aA2turbo-generatorA2-A2Ans--steamA2turbine

aA2boilerA2isA2producingA240,000lbA2ofA2steam/
hrA2atA2aA2pressureA2ofA2100A2PSIA2andA2aA2steamA2temperatureA2ofA2500A2degreesA2Fahr
enheit.A2TheA2steamA2producedA2isA2_______A2steamA2-A2Ans--superheated

theA2economizerA2onA2aA2boilerA2isA2usedA2toA2_______A2-A2Ans--
addA2heatA2toA2theA2feedA2water

blowersA2areA2normallyA2usedA2with________A2boilersA2-A2Ans--waterA2tube

overheatingA2ofA2tubesA2onA2aA2boilerA2canA2beA2causedA2by________A2-A2Ans--
scaleA2onA2tubes

carbonA2dioxideA2inA2aA2condensateA2returnA2systemA2causes_________A2-A2Ans--
channeling

aA2________A2pumpA2isA2aA2positiveA2displacementA2pumpA2-A2Ans--reciprocating

aA2boilerA2generatingA26000A2lbA2ofA2steam/hrA2producesA2_______btu/hrA2-A2Ans--
6,000,000

aA2bottomA2blowdownA2isA2performedA2onA2aA2boilerA2toA2_____A2-A2Ans--
dischargeA2sludgeA2andA2sediment

waterA2columnsA2areA2connectedA2toA2theA2boilerA2withA2aA2minimumA2ofA2_______"A2pipe
A2-A2Ans--1


theA2minimumA2sizeA2ofA2aA2waterA2columnA2blowdownA2valveA2is_______".A2-A2Ans--3/4

,theA2maximumA2sizeA2bottomA2blowdownA2valveA2onA2aA2boilerA2is_________".A2-A2Ans--
2A21/2

aA2________A2allowsA2condensateA2toA2passA2through,A2butA2stopsA2Steam.A2-A2Ans--
aA2steamA2trap

whenA2takingA2overA2aA2shift,A2theA2firstA2thingA2toA2doA2isA2checkA2the________A2-A2Ans--
waterA2levelA2inA2eachA2boiler

accordingA2toA2theA2asmeA2code,A2aA2high-
pressureA2boilerA2havingA2moreA2thanA2500A2squareA2feetA2ofA2heatingA2surfaceA2shallA2h
ave________A2-A2Ans--twoA2orA2moreA2safetyA2valves

theA2probableA2causeA2ofA2anA2increaseA2inA2temperatureA2ofA2gasesA2ofA2combustionA2at
A2theA2boilerA2OutletA2is____A2-A2Ans--dirtyA2heatingA2services


boilersA2inA2batteryA2equippedA2with________A2mustA2haveA2twoA2mainA2steamA2stopA2val
vesA2andA2aA2free-flowingA2drainA2betweenA2themA2-A2Ans--manholeA2openings

inA2orderA2toA2beA2sureA2theA2gaugeA2glassA2isA2indicatingA2anA2accurateA2waterA2levelA2re
ading,A2theA2stationaryA2engineerA2should______A2-A2Ans--blowdownA2theA2gaugeA2glass

aA2continuousA2blowdownA2lineA2isA2located___A2-A2Ans--
inA2theA2SteamA2andA2waterA2drumA2wellA2belowA2theA2nowl

aA2temperatureA2readingA2ofA280A2degreesA2CelsiusA2isA2equalA2to_________°fA2-A2Ans--
176

aA2chimneyA2temperatureA2ofA2250A2degreesA2FahrenheitA2aboveA2steamA2temperatureA2i
ndicates_______A2-A2Ans--poorA2efficiency

aA2manometerA2isA2redA2in________A2-A2Ans--inchesA2ofA2water

theA2boilingA2pointA2ofA2waterA2will____A2withA2anA2increaseA2inA2pressureA2-A2Ans--
beA2raised

ifA2aA2latherA2isA2notA2obtainedA2whenA2performingA2aA2soapA2hardnessA2test,A2theA2waterA
2sampleA2is_______A2-A2Ans--hard


combustionA2efficiencyA2canA2beA2increasedA2whenA2airA2is________A2-A2Ans--preheated

______A2draftA2isA2producedA2byA2aA2fanA2locatedA2betweenA2theA2boilerA2andA2theA2chim
neyA2-A2Ans--induced

, theA2overspeedA2tripA2onA2aA2steamA2turbineA2shouldA2beA2testedA2______A2-A2Ans--
beforeA2puttingA2theA2steamA2turbineA2on-line

aA2highA2CO2A2readingA2inA2theA2gasesA2ofA2combustionA2isA2aA2signA2of____A2-A2Ans--
HighA2combustionA2efficiency

theA2purposeA2ofA2chemicallyA2treatingA2feedwaterA2isA2to________A2-A2Ans--turnA2scale-
formingA2saltsA2toA2aA2nonA2adheringA2sludge

waterA2inA2aA2dA2ratingA2feedA2waterA2heaterA2isA2preventedA2fromA2enteringA2theA2steamA2
lineA2byA2a(n)A2_______.A2-A2Ans--LoopA2sealA2orA2internalA2overflow

aA2steamA2turbineA2operatingA2atA23600A2RPMA2willA2tripA2at_________A2rpmA2-A2Ans--
3960

heA2steamA2lineA2goingA2toA2TheA2BlowersA2isA2connectedA2toA2theA2mainA2________A2-
A2Ans--steamA2drum


beforeA2usingA2blowersA2onA2aA2boiler,________A2-A2Ans--drainA2setA2blowerA2lines

anA2accumulationA2ofA2snowA2onA2theA2FiresideA2ofA2aA2boilerA2tubes________A2-A2Ans--
decreasesA2boilerA2efficiency

aA2globeA2valveA2installedA2inA2theA2feedA2waterA2lineA2betweenA2theA2feedA2waterA2pumpA
2andA2boilerA2hasA2aA2pressureA2fromA2theA2feedA2waterA2pump_________A2theA2valveA2di
scA2-A2Ans--under

theA2rangeA2ofA2aA2pressureA2gaugeA2shouldA2beA2twiceA2theA2safetyA2valveA2setting,A2but
A2notA2lessA2than______A2timeA2(s)A2theA2safetyA2valveA2settingA2-A2Ans--1A21/2


hardA2scaleA2formedA2onA2theA2insideA2ofA2tubesA2isA2bestA2removedA2by________A2-
A2Ans--air-A2orA2water-drivenA2turbines


toA2correctA2aA2lowA2waterA2condition,_____A2-A2Ans--secureA2fires

desuperheaterA2drainA2isA2usedA2to_______A2-A2Ans--establishA2steamA2flow

aA2suddenA2riseA2inA2chimneyA2temperatureA2withA2noA2increaseA2inA2loadA2indicates____
__A2-A2Ans--thereA2isA2aA2brokenA2baffle

theA2btuA2contentA2ofA2naturalA2gasA2is_____A2-A2Ans--100,000A2btu/therm

theA2safetyA2valveA2settingA2onA2theA2SteamA2andA2waterA2drumA2isA2________A2aA2super
heaterA2safetyA2valveA2-A2Ans--higherA2than

theA2btuA2contentA2ofA2numberA26A2fuelA2oilA2isA2approximatelyA2-A2Ans--18750A2BTUA2/A2lb