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MCQs

Total Questions : 322 | Page 1 of 33 pages
Question 1. Which of the following is not a source of power ?
  1.    Thermocouple
  2.    Photovoltaic cell
  3.    Solar cell
  4.    Photoelectric cell
 Discuss Question
Answer: Option A. -> Thermocouple
Question 2. Depreciation charges are high in case of
  1.    thermal plant
  2.    diesel plant
  3.    hydroelectric plant
  4.    none of the above
 Discuss Question
Answer: Option A. -> thermal plant
Question 3. _______ is invariably used as base load plant.
  1.    Diesel engine plant
  2.    Nuclear power plant
  3.    Gas turbine plant
  4.    Pumped storage plant
 Discuss Question
Answer: Option B. -> Nuclear power plant
Question 4. An alternator coupled to a _____ runs at slow speed, as compared to as compared to others.
  1.    diesel engine
  2.    hydraulic turbine
  3.    steam turbine
  4.    gas turbine
 Discuss Question
Answer: Option B. -> hydraulic turbine
Question 5. For a consumer the most economical power factor is generally
  1.    0.5 lagging
  2.    0.5 leading
  3.    0.95 lagging
  4.    0.95 leading
 Discuss Question
Answer: Option C. -> 0.95 lagging
Question 6. A pilot exciter is provided on generators for which of the following reasons ?
  1.    To excite the poles of main exciter
  2.    To provide requisite starting torque to main exciter
  3.    To provide requisite starting torque to generator
  4.    None of the above
 Discuss Question
Answer: Option A. -> To excite the poles of main exciter
Question 7. Which lightening stroke is most dangerous ?
  1.    Direct stroke on line conductor
  2.    Indirect stroke on conductor
  3.    Direct stroke on tower top
  4.    Direct stroke on ground wire
 Discuss Question
Answer: Option A. -> Direct stroke on line conductor
Question 8. Which of the following source of power is least reliable ?
  1.    Solar energy
  2.    Geothermal power
  3.    Wind power
  4.    MHD
 Discuss Question
Answer: Option C. -> Wind power
Question 9. Direct conversion of heat into electric power is possible through
  1.    fuel cell
  2.    batteries
  3.    thermionic converter
  4.    all of the above
 Discuss Question
Answer: Option C. -> thermionic converter
Question 10. Direct conversion of heat into electrical energy is possible through
  1.    fuel cells
  2.    solar cells
  3.    MHD generators
  4.    none of the above
 Discuss Question
Answer: Option C. -> MHD generators

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