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Boiler Operation Engineer ( BOE ) Previous Year Multiple Choice Questions With Answer Set -2

 Question 1. Cooling towers: 1. Remove the heat from the condensate 2. Should use water treatment 3. Prevent thermal pollution of rivers and lakes 4. Cannot be used during winter periods 5. Remove the sensible heat of the steam in the condenser

 A. 2, 3

 B. 1, 3, 4

 C. 1, 3, 4, 5

  D. 3, 4, 5

  E.  2, 3, 4

Ans. A

Question 2.Short term overheating usually exhibits:

 A. Thin lip longitudinal rupture

 B.  Thick lips longitudinal rupture

 C.  Transverse cracks

 D.   Severe pitting

Ans. A 

Question 3. High Temperature stress rupture and oxidation resistant can be increased by:

A.  Alloying additives of Nickel and Tin

B. Alloying additives of Phosphorus and Silicone

C. Alloying additives of Molybdenum and Chromium

D. Alloying additives of Aluminium and Boron

Ans. C

Question 4. Which of the following boilers has emerged as an alternative to conventional boilers because of its higher combustion efficiency?

A. Fluidised bed combustion boiler

B. Packaged boiler

C. Stoker fired boiler

D. Chain grate boiler

Ans. A

Question 5. Fluidised bed combustion has _______________ effect on Sox and Nox emissions

A. Increased

B. No effect

C. Decreased

D. Depends on type of solid fuel used

Ans. C

Question 6. The largest has loss from boiler are caused by

A. Moisture in fuel

B. Radiation and convection

C. Moisture in air

D. Dry flue gas

Ans. D

Question 7. An increase in the conductivity of the water inside the boiler indicates a rise in

A. Purity

B. Temperature

C. Contamination

D. None of the above

Ans. C

Question 8. Long term overheating exhibits:

A. Thin lip longitudinal rupture

B. Transverse cracks

C. Thick lip longitudinal rupture

D. Severe pitting

Ans. C

Question 9.Creep damage can be detected with:

A. Changes in tube wall thickness

B. Severe bulging of tube wall

C. Micro structure examination of iron carbides

D. Transverse cracking of tube wall 

Ans. C

Question 10. The efficiency of a typical FBC boiler is of the order of

A. 30 %

B. 80 %

C. 70 %

D. 40%

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 -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 -6

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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