IC Engine Multiple Choice Questions and Answers


6. A spark plug gap is kept from.......


   A.0.3 to 0.7 mm

   B.0.2 to 0.8 mm

   C.0.4 to 0.9 mm

   D.0.6 to 1.0 mm


✔ View Answer


A.0.3 to 0.7 mm

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7. Theoretically correct mixture of air and petrol is .......


   A.10:1

   B.15:1

   C.20:1

   D.25:1


✔ View Answer


B.15:1

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8. The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called........


   A.Net efficiency

   B.Efficiency ratio

   C.Relative efficiency

   C.Overall efficiency


✔ View Answer


C.Relative efficiency

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9. If the intake air temperature of I.C. engine increses,its efficicency will......


   A.Increases

   B.Decreases

   C.Remain same

   D.Unpredictable


✔ View Answer


B.Decreases

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10. An engine indicator is used to detaermine.......


   A.Speed

   B.Temperature

   C.Volume of cylinder

   D.B.H.P

   E.m.e.p. and I.H.P.


✔ View Answer


E.m.e.p. and I.H.P.

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