Boiler Operation Engineer Previous year Questions With Answer Set - 11
Question 1. Blowdown of a boiler controls
A. pH of feed water
B. Alkalinity of feed water
C. Hardness of Feed Water
D. TDS of feed water
Ans. D
Question 2. Preservation of boiler is required
A. When boiler is not used for longer duration
B. During annual shutdown
C. After continuous operation of boiler for five years
D. At least twice in its life period
Ans. A
Question 3. The material used to control SOx in the FBC boiler is …………
A. limestone
B. Silica
C. Alumina
D. Lime
Ans. A
Question 4. Which of those fuels has the highest heating value?
A. Methane
B. Hydrogen
C. Diesel
D. LPG
Ans. B
Question 5. To regulate and control the flow ……. Types of valves are normally used.
A. Ball valves
B. Gate valves
C. Globe valves
D. Swing check valves
Ans. C
Question 6. The latent heat of the steam at atmospheric pressure is …………
A. 1875 KJ/kg
B. 2257KJ/kg
C. 860KJ/kg
D. 539KJ/kg
Ans. B
Question 7. A boiler is generating saturated steam of 2 tones/hr. at a pressure of 7.0 kg/cm2 (g). The feed water temperature is 80o C and furnace oil consumption is 140 kg/h. What is the efficiency of the boiler by using direct method? (Calorific value of FO is 10,000 kCal/kg, enthalpy of steam is 660Kcal/kg).
A. 78%
B. 80%
C. 82%
D. 84%
Ans. C
Question 8. At the critical point, specific volume of water is equal to …….
A. Zero
B. 0.00634 m3/kg
C. 0.00317 m3/kg
D. None of the above
Ans. C
Question 9. Discharge pressure of a centrifugal pump depends upon ……..
A. Pump speed
B. Diameter of impellers
C. Number of impellers
D. All the above
Ans. D
Question 10. The entropy of water at 0oC is ……..
A.0
B.1
C.4.3
B. 2.3
Ans. 0
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
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
BOE (Boiler Operation Engineer) Previous Year Exam Questions And Answers Set - 9
BOE (Boiler Operation Engineer) Previous Year Exam Questions And Answers Set - 10
BOE (Boiler Operation Engineer) Previous Year Exam Questions And Answers Set - 12
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