Top 350+ Solved Power Plant Engineering (PPE) MCQ Questions Answer
Q. Which of these is a working fluid in the topping plant of a Brayton-Rankine combined plant?
a. hydrogen
b. helium
c. nitrogen
d. all of the mentioned
Q. Which of these is a working fluid in the bottoming plant of a Brayton-Rankine combined plant?
a. mercury
b. steam
c. water
d. air
Q. What would be the temperature of the gas in the combustion chamber?
a. 500 °c
b. 1600 °c
c. 1200 °c
d. 650 °c
Q. To improve the efficiency of the gas turbines, which among these are used?
a. regenerator
b. inter cooling
c. reheating
d. all of the mentioned
Q. What is regeneration?
a. removal of heat from compressed air between stages of compression
b. transfer of heat energy from exhaust gases to the compressed air flowing between compressor and the combustion chamber
c. to increase the temperature of partially expanded gases by burning more fuel
d. transfer of heat energy from exhaust gases to the compressed air flowing between compressor and the combustion chamber and increases the temperature of partially expanded gases by burning more fuel
Q. What is meant by inter cooling?
a. removal of heat from compressed air between stages of compression
b. transfer of heat energy from exhaust gases to the compressed air flowing between compressor and the combustion chamber
c. to increase the temperature of partially expanded gases by burning more fuel
d. none of the mentioned
Q. Which material is used for the manufacture of the turbine blades?
a. stainless steel
b. carbon steel
c. high nickel alloy
d. high alloy steel