Economics of Power Generation MCQs

41. To reduce the cost of the electricity generated

1. the load factor and diversity factor should be low.
2. the load factor and diversity factor should be high.
3. the load factor should be low but the diversity factor should be high.
4. the load factor should be high but the diversity factor should be low.

42. What does the area under the load curve give

1. load
2. average demand
3. energy consumed
4. maximum demand

43. The ratio of energy produced in a given time to the maximum possible energy that can be produced is

1. utilisation factor
2. plant use factor
3. demand factor
4. load factor

44. Which of the following expressions depicts the utilization factor?

1. ratio of maximum generator demand to the generator capacity
2. ratio of actual energy produced to the generator capacity
3. ratio of generator capacity to the maximum demand
4. ratio of generator capacity to the actual energy produced

45. The load factor of the domestic load is

1. 10 to 15 %
2. 30 to 40 %
3. 50 to 60 %
4. 60 to 70 %

46. The area under daily load curve divided by 24 hours give

1. average load
2. least load
3. peak demand
4. total kWh generated

47. Load shedding is done to

1. improve power factor
2. run the equipment efficiently
3. repair the machine
4. reduce peak demand

48. A large diversity factor means

1. increases the maximum demand
2. increase the unit price of electricity
3. reduces the unit price of electricity
4. large plant capacity required

49. The yearly load duration curve of a power plant is a straight line. The average annual load is 400 MW. The capacity of the plant is 900 MW. The plant capacity factor will be

1. 0.6
2. 0.5
3. 0.3
4. 0.4

50. In a system, if the base load is the same as the maximum demand, the load factor will be

1. 1
2. 0.5
3. 0
4. infinity