Babcock and Wilcox Boiler - Some Important Questions and Answers

Boiler Operation Engineer ( BOE ) Objective Question And Answer Set - 31

1. What purpose do baffle plates serve in a Babcock and Wilcox boiler?

a) They direct the flow of water

b) They direct the flow of steam

c) They direct the flow of hot gases

d) They direct the flow of air to combustion chamber

Ans. c

2. Babcock and Wilcox boiler is a forced circulation boiler?

a) True

b) False

Ans. b

3. What is the maximum working pressure of a Lancashire boiler?

a) 10 bar

b) 12 bar

c) 14 bar

d) 16 bar

Ans. d

4. Which of the following statements is TRUE about Lancashire boiler?

a) The length of its shell is about 10 m

b) It has a steam capacity of 12000 kg/hr

c) It is a water tube boiler

d) Its efficiency is about 50 to 70%

Ans. d

5. Which of the following is the correct range of the diameter of shell for a Lancashire boiler?

a) 1 to 2 m

b) 2 to 3 m

c) 3 to 4 m

d) 4 to 5 m

Ans. b

6. Water tube boilers are further classified into horizontal straight tube and bent tube boilers.

a) True

b) False

Ans. a

7. Which of the following is a horizontal straight tube boiler?

a) Lancashire boiler

b) Babcock and Wilcox boiler

c) Stirling boiler

d) Locomotive boiler

Ans. b

8. What is maximum working pressure of Babcock and Wilcox boiler?

a) 40 bar

b) 50 bar

c) 60 bar

d) 80 bar

Ans. a

9. What is the maximum steam capacity of a Babcock and Wilcox boiler?

a) 20000 kg/hr

b) 30000 kg/hr

c) 40000 kg/hr

d) 50000 kg/hr

Ans. c

10. In Babcock and Wilcox boiler, just before entering the superheater the steam enters _____

a) uptake header

b) down take header

c) main stop valve

d) anti priming pipe

Ans. d

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