MD STATIONARY ENGINEER LATEST
2026/2027 ACTUAL EXAM QUESTIONS
WITH CORRECT ANSWERS 100%
VERIFIED GRADED A+
1. GasesmofmCombustionmthatmcoolmonmContactmwithmthemboilermheatingmSurfacembeforemcom
bushionmismcompletedmCausema(n)m_________m-
mCORRECTmANSWERmFormationmofmsootmandmsmoke
2. Inmthemeventmofmamflamemfailure,mthemprogrammermwill______m-
mCORRECTmANSWERmSecuremthemfuel,mpurgemthemfirebox,mandmthenmshutmdown
3. Boilmthemwatermmustmbemconditionedmtompreventm______m(3mAnswers)m-
mCORRECTmANSWERmFormationmofmscale,moxygenmpitting,mcarryover
4. Rankmrefersmtomthem__________mofmthemcoalm-mCORRECTmANSWERmDegreemofmHardness
5. Gaugempressuremplusmatmosphericmpressuremequalsmwhat?m-
mCORRECTmANSWERmAbsolutempressure
6. Airmneededmformcombustionmofmfuelmismmademupmofmapproximatelym_________%moxygenm
andm________mnitrogenm-mCORRECTmANSWERm20,m80
7. Whatmismthempressuremappliedmonmthemboilermduringmamhydrostaticmtest?m-
mCORRECTmANSWERm1.5mtimesmthemMaximummAllowedmWorkingmPressure
8. Naturalmwatermmaymcontain....m-
mCORRECTmANSWERmSolids,mgases,mandmothermpollutantsmfrommindustrialmwaste
, 9. Recordersmaremusedmto....m-
mCORRECTmANSWERmGivemanmoverallmviewmofmthemSteammplanetmoperation
10. Adirectmcausemohmoverheatingmofmthemboilermtubesmis.....m-
mCORRECTmANSWERmScalemformationmonmthemtubes
11. Themprimarymfunctionmofmamcombustionmcontrolmismtomensure....m-
mCORRECTmANSWERmBoilermefficiency
12. Flowmmetersmmeasuremthemratemofmflowmof....m-mCORRECTmANSWERmAmvarietymofmfluids
13. Whatmismthemcoolingmtowermsupplymwatermtemperaturemgenerally?m-
mCORRECTmANSWERm80mdegrees
14. Whatmismthemcoolingmtowermreturnmwatermtemperaturemgenerally?m-
mCORRECTmANSWERm90mdegrees
15. Mostmthermometersmusedminmamsteammplantmaremcalibratedminmwhat?m-
mCORRECTmANSWERmDegrees/mFahrenheit
16. Thermocouplesmmeasure...m-mCORRECTmANSWERmTemperature
17. CarbonmDioxideminmthemfluemhasmismamsignmofmwhatmkindmofmcombustion?m-
mCORRECTmANSWERmComplete
18. Bituminousmcoalmhasmamhighm______mcontentm-mCORRECTmANSWERmVolatile
2026/2027 ACTUAL EXAM QUESTIONS
WITH CORRECT ANSWERS 100%
VERIFIED GRADED A+
1. GasesmofmCombustionmthatmcoolmonmContactmwithmthemboilermheatingmSurfacembeforemcom
bushionmismcompletedmCausema(n)m_________m-
mCORRECTmANSWERmFormationmofmsootmandmsmoke
2. Inmthemeventmofmamflamemfailure,mthemprogrammermwill______m-
mCORRECTmANSWERmSecuremthemfuel,mpurgemthemfirebox,mandmthenmshutmdown
3. Boilmthemwatermmustmbemconditionedmtompreventm______m(3mAnswers)m-
mCORRECTmANSWERmFormationmofmscale,moxygenmpitting,mcarryover
4. Rankmrefersmtomthem__________mofmthemcoalm-mCORRECTmANSWERmDegreemofmHardness
5. Gaugempressuremplusmatmosphericmpressuremequalsmwhat?m-
mCORRECTmANSWERmAbsolutempressure
6. Airmneededmformcombustionmofmfuelmismmademupmofmapproximatelym_________%moxygenm
andm________mnitrogenm-mCORRECTmANSWERm20,m80
7. Whatmismthempressuremappliedmonmthemboilermduringmamhydrostaticmtest?m-
mCORRECTmANSWERm1.5mtimesmthemMaximummAllowedmWorkingmPressure
8. Naturalmwatermmaymcontain....m-
mCORRECTmANSWERmSolids,mgases,mandmothermpollutantsmfrommindustrialmwaste
, 9. Recordersmaremusedmto....m-
mCORRECTmANSWERmGivemanmoverallmviewmofmthemSteammplanetmoperation
10. Adirectmcausemohmoverheatingmofmthemboilermtubesmis.....m-
mCORRECTmANSWERmScalemformationmonmthemtubes
11. Themprimarymfunctionmofmamcombustionmcontrolmismtomensure....m-
mCORRECTmANSWERmBoilermefficiency
12. Flowmmetersmmeasuremthemratemofmflowmof....m-mCORRECTmANSWERmAmvarietymofmfluids
13. Whatmismthemcoolingmtowermsupplymwatermtemperaturemgenerally?m-
mCORRECTmANSWERm80mdegrees
14. Whatmismthemcoolingmtowermreturnmwatermtemperaturemgenerally?m-
mCORRECTmANSWERm90mdegrees
15. Mostmthermometersmusedminmamsteammplantmaremcalibratedminmwhat?m-
mCORRECTmANSWERmDegrees/mFahrenheit
16. Thermocouplesmmeasure...m-mCORRECTmANSWERmTemperature
17. CarbonmDioxideminmthemfluemhasmismamsignmofmwhatmkindmofmcombustion?m-
mCORRECTmANSWERmComplete
18. Bituminousmcoalmhasmamhighm______mcontentm-mCORRECTmANSWERmVolatile