Power Plant Engineering MCQ Questions & Answers | Electrical Engineering

A. improves in summer as compared to that in winter

B. improves in winter as compared to that in summer

C. is unaffected by climatic conditions

D. none of the above

A. less smoke

B. more draught

C. less chimney gas temperature

D. all of the above

A. due to the fact that furnace gases being light go through the chimney giving place to cold air from outside to rush in

B. due to the fact that pressure at the grate due to cold column is higher than the pressure at the chimney base due to hot column

C. due to the fact that at the chimney top the pressure is more than its environmental pressure

D. all of the above

A. when steam is extracted from only one suitable point of steam turbine

B. when steam is extracted from several places in different stages of steam turbine

C. when steam is extracted only from the last stage of steam turbine

D. when steam is extracted only from the first stage of steam turbine

A. cooling water passes through tubes and steam surrounds them

B. steam passes through tubes and cooling water surrounds them

C. steam and cooling water mix

D. steam and cooling water do not mix

A. the pressure in the turbine rotor is approximately same as in condenser

B. the pressure in the turbine rotor is higher than pressure in the condenser

C. the pressure in the turbine rotor gradually decreases from inlet to exit from condenser

D. none from the above

A. decreases if the chimney gas temperature increases

B. increases if the chimney gas temperature increases

C. remains same irrespective of chimney gas temperature

D. may increase or decrease

A. unit

B. central

C. power

D. none of the above

A. reducing the work done

B. increasing the rotor speed

C. reducing the rotor speed

D. balancing the turbine

A. change of internal energy between inlet and outlet

B. change of enthaply between inlet and outlet

C. change of entropy between inlet and outlet

D. change of temperature between inlet and outlet