electrical-power-generation-mcqs-part-5

Electrical Power Generation MCQs Part 5

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a. The major portion of electrical power is generated from:

  1. Coal
  2. Nuclear
  3. Hydroelectric
  4. Solar

Correct answer: 1. Coal

b. 1 day-second-meter in Hydroelectric power station equals:

  1. 50,000 m3
  2. 68,300 m3
  3. 86,400 m3
  4. 92,242 m3

Correct answer: 3. 86,400 m3

Solution: 60 * 60 * 24 = 86,400 m3

c. Which one of the following is high-quality fuel:

  1. Fuel having cetane number of 20
  2. Fuel having CN of 10
  3. Fuel having CN of 49
  4. Fuel having CN 3.33

Correct answer: 3. Fuel having CN of 49

d. The input to the superheater in a steam power station is:

  1. Cold water
  2. Hot water
  3. Steam
  4. Superheated steam

Correct answer: 3. Steam

e. Reaction turbines utilize:

  1. Pressure of fluid
  2. Motion of fluid
  3. Both of these
  4. None of these

Correct answer: 1. Pressure of fluid

f. After passing through turbine:

  1. Its temperature increases, but pressure decreases
  2. Both temp and pressure increase
  3. Temp decrease, but pressure increases
  4. Both temperature and pressure decrease

Correct answer: 4. Both temperature and pressure decrease

g. The condenser in steam power plant condenses the steam coming out from:

  1. HP turbine
  2. IP turbine
  3. LP turbine
  4. All of these

Correct answer: 3. LP turbine

h. The metallic structure which supports fuel in the furnace of steam power station:

  1. Grate
  2. Stocker
  3. Preheater
  4. Fire-tube boiler

Correct answer: 1. Grate

i. Which one of the following is constant pressure turbine:

  1. Kaplan
  2. Francis
  3. Propeller
  4. Pelton

Correct answer: 4. Pelton

j. The equipment which supplies air to the steam power station:

  1. Economizer
  2. Draught
  3. Grate
  4. Stocker

Correct answer: 2. Draught

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