Economics of Power Generation

41. Generators for peak load plants are usually designed for maximum efficiency at

1. 25 to 50 percent full load
2. 50 to 75 percent full load
3. full load
4. 25 percent overload

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42. High load factor indicates

1. cost of generation per unit power is increased
2. total plant capacity is utilised for most of the time
3. total plant capacity is not properly utilised for most of the time
4. none of the above

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43. In _________ fuel transportation cost is least.

1. nuclear power plants
2. diesel generating plants
3. steam power stations
4. none

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44. In a distribution system, in order to improve power factor, the synchronous capacitors are installed

1. at the receiving end
2. at the sending end
3. either (a) or (b)
4. none of the above

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45. In a load curve the highest point represents

1. peak demand
2. average demand
3. diversified demand
4. none of the above

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46. In a power plant if the maximum demand on the plant is equal to the plant capacity, then

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

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47. In an interconnected system, the diversity factor of the whole system

1. remains unchanged
2. decreases
3. increases
4. none of the above

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48. In Hopknison demand rate or two parttariff the demand rate or fixed charges are

1. dependent upon the energy consumed
2. dependent upon the maximum demand of the consumer
3. both (a) and (b)
4. neither (a) nor (b)

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49. In India production and distribution of electrical energy is confined to

1. private sector
2. public sector
3. government sectors
4. joint sector

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50. In power plants insurance cover is provided for which of the following?

1. Unskilled workers only
2. Skilled workers only
3. Equipment only
4. All of the above

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