Question 1. In a typical 200MW boiler, Emergency blow down tapping is taken from
A. Drum
B. Down comers/ring header
C. De-aerator
D. Can be any of the above
Ans. A
Question 2. which of the following is softer coal for grinding?
A. Coal with HGI of 55
B. Coal with HGI of 45
C. Coal with HGI of 68
D. Any of the above
Ans. C
Question 3.typical combustion efficiency of a CFBC boiler is
A. 40-60%
B. 77-88%
C. 88-96%
D. 97-98%
Ans. C
Question 4.Drum material in typical 200MW boiler is
A. Alloy steel
B. Carbon steel
C. Stainless steel
D. All of the above
Ans. B
Question 5.Chromatographic analyser is used to measure the
A. Oxygen in flue gas
B. Carbon dioxide in flue gas
C. Amount of individual gases in flue gas
D. Sulphur dioxide in flue gas
Ans. C
Question 6.Spectrophotometer is used to
A. Measure surface characteristics
B. Measure chemical composition of alloy
C. Gas composition
D. Analyze colour spectrum
Ans. B
Question 7.The Orsat apparatus is used for measuring
A. Chemical analysis of flue gas
B. Moisture in air
C. Composition of alloys
D. Colour spectrum
Ans. A
Question 8.The Second Critical Speed of a shaft occurs at
A. Twice the speed of primary critical speed
B. Half the speed of primary critical speed
C. 4 times the primary critical speed
D. Unpredictable
Ans. D
Question 9.According to Hooke’s law stress and strain are
A. Directly proportional
B. Inversely proportional
C. Linearly
D. None of the above
Ans. A
Question 10.For small discharge and high head which pump is preferred
A. Centrifugal type
B. Reciprocating type
C. Axial type
D. Screw type
Ans. B
Also Read :
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -1
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -2
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -3
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -4
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -5
Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -7
BOE (Boiler Operation Engineer) Previous Year Exam Questions And Answers Set - 8
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