The compression ratio for petrol engines is

A. 3 to 6

B. 5 to 8

C. 10 to 20

D. 15 to 30

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  1. In closed cycle gas turbine, the air is compressed
  2. When the gas is heated at constant volume, the heat supplied
  3. The point of contra flexure is a point where
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  5. The mass of excess air supplied is equal to
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  7. According to Avogadro's law
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  12. The gas constant (R) is equal to the
  13. Mond gas is obtained by
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  16. For the same maximum pressure and temperature,
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  22. In an isothermal process,
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  27. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it.…
  28. When coal is first dried and then crushed to a fine powder by pulverising machine, the resulting fuel…
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