11. Bomb Calorimeter is used to determine the calorific value of-

A. Solid fuel only

B. Gaseous fuel only

C. Solid and Gaseous fuels both

D. Solid and Liquid fuels both

Click for Answer/Explanation

Correct Answer is D

12. Once through boilers operate at-

A. critical pressure only

B. supercritical pressure

C. subcritical pressure

D. subcritical pressure as well as supercritical pressures

Click for Answer/Explanation

Correct Answer is D

13. The reheat cycle in steam power is mainly adopted to-

A. decrease the capacity of a condenser

B. recover the waste heat of the boiler

C. Improve thermal efficiency

D. decrease the moisture content in low-pressure stages to a safe value

Click for Answer/Explanation

Correct Answer is D

The steam between the intermediate stages of two turbines improves the quality of the steam at the exit of the turbine.

14. Centrifugal compressors are suitable for large discharge and wider mass flow range, but at a relatively low discharge pressure of the order of 10 bars, because of-

A. low-pressure ratio

B. large speeds

C. high compression index

D. limitation of the size of the receiver

Click for Answer/Explanation

Correct Answer is A

15. What is the ratio of the isentropic work to Euler’s work known as-

A. Slip factor

B. Work Factor

C. Pressure coefficient

D. Degree of reaction

Click for Answer/Explanation

Correct Answer is B

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