Power Systems Objective Questions & Answers – Set 7
Power Systems Objective Questions & Answers
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Pumped storage plant is a
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Which of the following statements is/are true?
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A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is
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Which of the following plants is/are base load plants
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The maximum demand of a consumer is 2 kW and corresponding daily energy consumption is 30 units. What is the corresponding load factor?
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On which one of the following cycles does a modern steam power plant work?
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Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge?
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A power station plant load factor is defined as the ratio of
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Which of the following statements is/are true?
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A generated station has a maximum demand of 30 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is
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A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is
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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?
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Which of the following statements is/are true?
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The water from a catchment is 60*10^{6} cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is
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A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant?
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Advantages of pumped storage plants is/are
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What is the approximate efficiency of a normal thermal power station?
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When a pumped storage power plant is operated in conjunction with a steam power plant
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For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is
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A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is
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In coal fired thermal power stations, what are the electrostatic precipitators used for?
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Which of the following power stations is mainly used to cover peak load on the system?
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The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of
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One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is
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The daily energy produced in thermal power station is 720 MWh at a load factor of 0.6. What is the maximum demand of the station?
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A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station?
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Which of the following materials is/are used as moderators?
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In nuclear power plants which material is/are used as coolant?
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In an interconnected power system, the most suitable power plant to meet the peak load condition is
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A power station has a maximum demand of 15 MW. The plant capacity is 20 MW. Find the reserve capacity of the plant?