1. In hydro power plant, the graph between discharge and time is known as
(a) monograph.
(b) load graph.
(c) discharge graph.
(d) hydro graph.
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2. Which of the following generating station has minimum running cost?
(a) Nuclear.
(b) Hydro.
(c) Thermal.
(d) Diesel.
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3. For the low head and large discharge, the hydraulic turbine used is
(a) Francis turbine.
(b) Kaplan turbine.
(c) Pelton turbine.
(d) none of the above.
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4. Which of the following hydraulic turbine is used for high head?
(a) Francis turbine.
(b) Kaplan turbine.
(c) Pelton turbine.
(d) none of the above.
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5. Which of following power plant has highest depreciation charges?
(a) Nuclear plant.
(b) Thermal plant.
(c) Diesel plant.
(d) Hydroelectric plant.
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6. The ideal load factor should be
(a) unity.
(b) zero.
(c) negative.
(d) infinity.
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7. If the diversity factor of a power station is high then its generation cost is
(a) high.
(b) low.
(c) remain same.
(d) depend on the plan type.
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8. Hydroelectric power stations are generally located in
(a) plane area.
(b) hilly area.
(c) cold area.
(d) warm area.
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9. Diesel power plant are generally used as
(a) peak load plant.
(b) base load plant.
(c) standby plant.
(d) none of the above.
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10. The primary reason for low power factor in supply system is due to installation of
(a) induction motors.
(b) synchronous motors.
(c) single phase motors.
(d) d.c. motors.
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11. A gas turbine basically work on
(a) Carnot cycle.
(b) Rankin cycle.
(c) Brayton cycle.
(d) Dual cycle.
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12. Which of the following is usually not the generating voltage
(a) 6.6 kV.
(b) 9.9 kV.
(c) 11kV.
(d) 13.2kV.
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13. The overall efficiency of a steam power station is _______ its thermal efficiency.
(a) less than
(b) equal to
(c) greater than
(d) none of the above
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14. Which of the following power plant usually offer highest maintenance cost?
(a) Nuclear power plants.
(b) Hydro-electric power plants.
(c) Thermal power plants.
(d) Diesel engine power plants.
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15. Which of the following Power Plant causes least environmental pollution?
(a) Thermal Power Plant.
(b) Hydro Power Plant.
(c) Nuclear Power Plant.
(d) Diesel Power Plant.