# Power Generation MCQs Part 18

Power Generation MCQs Part 18

Contents

## Nuclear reactors utilize the process of

Nuclear reactors utilize the process of:

1. Fission
2. Fusion
3. Both of these
4. None of these

## A diesel station supplies following loads to various consumers

A diesel station supplies following loads to various consumers:

Industrial consumers = 2000

Domestic power = 150

Domestic lighting load = 400 kW

If maximum demand on station is 3200 kW. Then diversity factor is:

1. 0.94
2. 0.97
3. 1.02
4. 1.05

Solution:

Diversity factor = (2000 + 150 + 800 + 400)/3200 = 1.05

## Mechanical energy is supplied to a DC generator at rate of 5000 J/s. The generator delivers 40 at 110 V. The efficiency of generator is:

Mechanical energy is supplied to a DC generator at rate of 5000 J/s. The generator delivers 40 at 110 V. The efficiency of generator is:

1. 92%
2. 88%
3. 84%
4. 80%

Solution:

Input power = 5000 J/s = 5000 W

————–

Output power (Po) = 110 * 40 = 4400 W

————–

Efficiency (η) = Po/Pi * 100 = 4400/5000*100 = 88%

## Certain power station has an average demand of 15 MW. If plant capacity factor is 50% and load factor is 60%. The reserve capacity of plant is:

Certain power station has an average demand of 15 MW. If plant capacity factor is 50% and load factor is 60%. The reserve capacity of plant is:

1. 2 MW
2. 5 MW
3. 15 MW
4. 25 MW

Solution:

From formula of Plant capacity factor

Plant capacity factor = Average demand/Plant capacity

Plant capacity = Average demand/Plant capacity factor = 15/0.5 = 30 MW

——————-

Maximum demand = Average demand/Load factor = 15/0.6 = 25 MW

——————-

Reserve capacity of plant = Plant capacity – Max.demand = 30 – 25 = 5 MW

## Generally, It is a practice to keep capacity of power plant by XYZ percentage more than maximum demand for meeting future load requirements:

Generally, It is a practice to keep capacity of power plant by XYZ percentage more than maximum demand for meeting future load requirements:

1. 15 to 20%
2. 45 to 50%
3. 65 to 70%
4. 90 to 95%

Correct answer: 1. 15 to 20%