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2nd class boiler operator previous year question and answer PDF

 Boiler Operator Question And Answer Previous Year Set - 30

1. Which of the following is NOT a fire tube boiler?

a) Cochran Boiler

b) Lancashire Boiler

c) Locomotive Boiler

d) Babcock and Wilcox Boiler

Ans. d

2. Which of the following is NOT a valid classification of boilers?

a) Forced circulation and natural circulation

b) High pressure and low pressure

c) Stationary and Portable

d) Single fired and Double fired

Ans. d

3. Stationary boilers are used for _____

a) locomotive applications

b) temporary applications

c) power plant steam generation

d) marine application

Ans. c

4. In natural circulation boilers, water circulation takes place due to natural convection current produced by the application of heat.

a) True

b) False

Ans. a

5. Which of the following is a single tube boiler?

a) Cornish boiler

b) Lancashire boiler

c) Benson boiler

d) Cochran boiler

Ans. a

6. Which of the following is NOT true about Babcock and Wilcox boiler?

a) Water tube boiler

b) Externally fired

c) High pressure boiler

d) Single tube

Ans. d

7. Babcock and Wilcox boiler is an internally fired boiler.

a) True

b) False

Ans. b

8. The classification of boilers into horizontal, vertical and inclined is done on the basis of their _____

a) pressure

b) method of firing

c) tubes

d) axis

Ans. d

9. Which of the following statement is NOT true about fire tube boilers?

a) Hot gases are inside the tubes and water surrounds them

b) For a given power it occupies more floor area

c) Operating pressure can be as high as 100 bars

d) Not suitable for large power plants

Ans. c

10. Which of the following is NOT a forced circulation boiler?

a) Velox boiler

b) Lancashire boiler

c) Lamont boiler

d) Benson boiler

Ans. b

11. Which of the following is a low pressure boiler?

a) Babcock and Wilcox boiler

b) Benson boiler

c) Lancashire

d) Lamont Boiler

Ans. c

12. Which of the following statement is FALSE about boilers?

a) Portable boilers are also called as mobile boilers

b) Lamont boiler is a forced circulation type boiler

c) Cochran boiler is a high pressure boiler

d) Horizontal boilers occupy more space

Ans. c

Boiler Objectives Questions :

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Boiler Operation Engineer Exam 2023

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Cg BOE EXAM solved PAPERS pdf

BOE exam books pdf free download - Previous year Questions With Answer 

SAIL Boiler Operation Engineer Question Paper Previous year - Free PDF Download 

Read Boiler Interview Questions :

What are the factors which affect the Natural circulation ?

What is the difference between Tower type and Two pass conventional boiler?

What parameters are measured during Boiler PG test ?

What are the reasons for lifting of steam drum safety valve ? 

Possible reasons for higher main steam temperature ?

What are the causes of higher flue gas outlet temperature of boiler ?

 How to Calculate Efficiency of a Power Plant ?

How do you calculate the Turbine Efficiency ?




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