1000+ Steam and Power Generation MCQ Questions and Answers - 2

Question: 6

The compounding of steam turbines is done to

(A) reduce axial thrust

(B) increase blade speed ratio

(C) reduce turbine speed

(D) improve efficiency

Question: 7

In a regenerative feed heating cycle, the economic number of the stages of regeneration

(A) depends only on the condenser pressure

(B) is independent as the initial pressure and temperature

(C) decreases as the initial pressure and temperature increase

(D) increases as the initial pressure and temperature increase

Question: 8

The excess air required for combustion of pulverised coal is of the order of

(A) 5 to 10%

(B) 15 to 40%

(C) 30 to 60%

(D) 100 to 150%

Question: 9

Fans used for mechanical draft (induced) cooling towers are

(A) axial flow type

(B) centrifugal type

(C) propeller type

(D) radial flow type