Economics of Power Generation MCQs

61. Which of the following power station is mainly used to cover peak load on the system?

1. Coal based thermal power plant
2. Nuclear power plant
3. Gas based therrmal power plant
4. Pumped storage hydro power plant

62. Consider the following statements:

Pumped storage plants, when operated in interconnected power systems, serve to

1. Increase load factor of steam plant.
2. Provide added capacity to meet peak loads.
3. Decrease load factor of steam plant.
4. Provide added capacity to meet base loads.

Which of the above statements are correct/

1. 1 and 3 only
2. 1,2, 3 and 4
3. 1 and 2 only
4. 3 and 4 only

63. A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity.

1. 250 MW
2. 500 MW
3. 1250 MW
4. 750 MW

64. A generating station has 500 MW maximum demand, annual load factor of 50% and capacity factor of 40%. The reserve capacity of the plant is

1. 125 MW
2. 625 MW
3. 500 MW
4. 725 MW

65. The load curve is useful in deciding.

1. The operating schedule of generating units
2. The total installed capacity.

Which of the above statements is/are correct?

1. 2 only
2. 1 only
3. Both 1 and 2
4. Neither 1 nor 2

66. The maximum demand on a steam power station is 480 MW. If the annual load factor is 40%, then the total energy generated annually is

1. 19819.2 x 10⁵ kWh
2. 18819.2 x 10⁵ kWh
3. 17819.2 x 10⁵ kWh
4. 16819.2 x 10⁵ kWh