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Non Conventional Energy Resources by Sobh Nath Singh

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Appendix B

Multiple Choice Objective Questions on Energy Systems

  1. For controlling chain reaction in a nuclear reactor, material used is
    1. beryllium
    2. boron
    3. heavy water
    4. thorium
  2. The total power of a wind stream is directly proportional to
    1. velocity
    2. square root of velocity
    3. square of velocity
    4. cube of velocity
  3. The bio-gasification is a process also referred as
    1. aerobic combustion
    2. anaerobic digestion
    3. fermentation
    4. thermochemical gasification
  4. The most widely used bond in the solar cell work is
    1. covalent
    2. hydrogen like
    3. ionic
    4. metallic
  5. Fill factor is also known as
    1. short circuit factor
    2. refractive index
    3. reflection factor
    4. efficiency
  6. The Betz criterion of maximum performance of wind turbine has the value of maximum power extraction coefficient of
    1. 0.35

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