Boilers Interview Questions

Boilers interview questions

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Total Questions: 5

1. Water is mainly used in boilers for the generation of

A. Power

B. Electricity

C. Steam

D. Current

Correct Answer is : Steam

2. Which of the following should not be a composition of boiler-feed water?

A. Hardness should be below 0.2ppm

B. Its caustic alkalinity should lie between 0.15 to 0.45 ppm

C. Its soda alkalinity should be 0.45-1 ppm

D. Its caustic alkalinity should be 1.5-2 ppm

Correct Answer is : Its caustic alkalinity should be 1.5-2 ppm

3. Which of the following is not a result of excess of impurity in boiler-feed?

A. Scale and sludge formation

B. Decomposition

C. Corrosion, priming and foaming

D. Caustic embrittlement

Correct Answer is : Decomposition

4. If the precipitate formed is soft, loose and slimy, these are and if the precipitate is hard and adhering on the inner wall, it is called ___

A. Sludges, scale

B. Scale, sludges

C. Sludges, rodent

D. Scale, rodent

Correct Answer is : Sludges, scale

5. Which of the following option is incorrect about the sludges?

A. Sludges are soft, loose and slimy precipitate

B. They are non-adherent deposits and can be easily removed

C. Formed generally at heated portions of the boiler

D. Can be removed by blow down operation

Correct Answer is : Formed generally at heated portions of the boiler

Boilers interview questions