Economics of Power Generation MCQs

31. The power factor of industrial loads is generally

1. unity
2. lagging
3. leading
4. zero

32. Which of the following is correct?

1. load factor = capacity factor × utilisation factor
2. utilisation factor = capacity factor × load factor
3. capacity factor = load factor × utilisation factor
4. load factor has no relation with capacity factor

33. A consumer has annual consumption of 7,00,800 units. If his maximum demand is 200 kW. The load factor will be

1. 40%
2. 50%
3. 70%
4. 20%

34. The maximum demand of a consumer is 2 kW and his daily energy consumption is 20 units. His load factor is

1. 41.6%
2. 50%
3. 21%
4. 10.15%

35. If F is the load factor, the loss load factor is given by

1. 0.25 F² + 0.85 F
2. 0.20 F² + 0.75 F
3. 0.70 F² + 0.35 F
4. 0.75 F² + 0.25 F

36. If power plant if the maximum demand on the plant is equal to the plant capacity then

1. diversity factor will be unity
2. load factor will be unity
3. load factor will be nearly 60%
4. plant reserve capacity will be zero

37. If the power factor is high, then the consumer maximum kVA demand

1. remain constant
2. increases
3. decreases
4. becomes zero

38. A generating station supplies the following loads 15000 kW, 12000 kW, 8500 kW, 6000 kW and 450 kW. The station has a maximum demand of 22000 kW. Calculate the diversity factor.

1. 0.68
2. 1.34
3. 1.91
4. 0.52

39. Diversity factor has a direct effect on the

1. variable cost of the unit generated
2. both variable and fixed cost of unit generated
3. operating cost of a unit
4. fixed cost of the unit generated

40. The maximum demand of a consumer is 2 kW and his daily energy consumption is 24 units. The load factor is _______%

1. 24
2. 50
3. 41.6
4. 80