Economics of Power Generation

91. Which of the following is not a source of power?

1. Thermocouple
2. Photovoltaic cell
3. Solar cell
4. Photoelectric cell

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92. Which of the following is not necessarily an advantage of interconnecting various power stations?

1. Improved frequency of power supplied
2. Reduction in total installed capacity
3. Increased reliability
4. Economy in operation of plants

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93. Which of the following is the disadvantage due to low power factor?

1. Poor voltage regulation
2. Increased transmission losses
3. High cost of equipment for a given load
4. All of the above

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94. Which of the following is the disadvantage of a synchronous condenser?

1. High maintenance cost
2. Continuous losses in motor
3. Noise
4. All of the above

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95. Which of the following is the disadvantage of static capacitor for power factor improvement?

1. Easily damaged by high voltage
2. Cannot be repaired
3. Short service life
4. All of the above

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96. Which of the following is the essential requirement of peak load plant?

1. It should run at high speed
2. It should produce high voltage
3. It should be small in size
4. It should be capable of starting quickly

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97. Which of the following place is not associated with nuclear power plants in India?

1. Narora
2. Tarapur
3. Kota
4. Benglore

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98. Which of the following plants is almost inevitably used as base load plant?

1. Diesel engine plant
2. Gas turbine plant
3. Nuclear power plant
4. Pumped storage plant

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99. which of the following plants?

1. Base load plants
2. Peak load plants
3. Both (a) and (b)
4. none of the above

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100. Which of the following power plants need the least period for installation?

1. Thermal power plant
2. Diesel power plant
3. Nuclear power plant
4. Hydro-electric power plant

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