# Electrical Power Generation MCQs Part 5

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

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

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

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

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

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

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

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

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