Question 1. The height of chimney in a power plant is governed by
A. The draft to be created norms
B. Sulphur in fuel
C. Control of pollution & government
D. None
Ans. B
Question 2. Cavitation occurs in Pump
A. Suction pipe
B. Discharge pipe
C. NRV’s
D. None of above
Ans. D
Question 3. Proximate analysis of coal gives the following result
A. Carbon, hydrogen, nitrogen, sulphur
B Fixed carbon, Ash , volatiles , moisture
C. Lower Calorific Value
D Higher Calorific Value
Ans. B
Question 4. A steam pipe is to be insulted by two insulting materials put over each other. For better result
A. Both may be put in any order
B. Better insulator of the two should be put first then cover by less insulating
C. Lower insulator material should be first put and covered with higher insulating material
D. Depends on the steam temperature and conductivity of pipe
Ans. B
Question 5. The use of primary air in a PF boiler is for
A. Carrying pulverised coal to the burners
B. Cooling the boiler walls
C. Taking the ash to the ESPs
D. None of the above
Ans. A
Question 6. The efficiency of collection in ESP will _________ If the velocity of flue gas passing through it increases.
A. Increase
B. Decrease
C. Remains the same
D. First increase and then decrease
Ans. B
Question 7. Modern utility boilers are supported at the top and are hanging type. It is to ________ .
A. Keep vertical
B. Allow free expansion
C. Restrict expansion
D. None
Ans. B
Question 8. Remnant life assessment (RLA) of boiler is carried out as per IBR 1950 Regulation ________.
A. 380
B. 391A
C. 320
D. None of the above
Question 9. Atomising of HFO in burners is carried out through _________.
A. Compressed air
B. Steam
C. Flue gas
D. Pure oxygen
Ans. B
Question 10. The height of the chimney for a 500 MW unit as per the latest guidelines is
A. 220 mtr
B. 275 mtr
C. 250 mtr
D. 300 mtr
Ans. B
Question 11.The efficiency of modern electrostatic Precipitators is
A. Less than 95%
B. Between 90-95%
C. Greater than 99%
D. None of the above
Ans. C
Question 12. Which material is used in final leg of super heater having steam temp of 540°C
A. Carbon steel
B. Alloy steel
C. Stainless steel
D. Any of the above
Ans. B
Question 13. Hydra-step (gauge glass) is mounted on
A. Boiler drum
B. Economiser
C. Re-heater
D. Super Heater
Ans. A
Question 14. Fish mouth opening is a term used to describe
A. PA fan impeller cracks
B. Boiler Tube failure
C. Mill gear box cracks
D. None of the above
Ans. B
Question 15. In a Boiler, the maximum pressure is seen in the
A. Drum
B. Main Header
C. Super heater
D. Economiser
Ans. D
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 -6
BOE (Boiler Operation Engineer) Previous Year Exam Questions And Answers Set - 8
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