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The ratio of the brake power to the indicated power is called

A. Mechanical efficiency

B. Overall efficiency

C. Indicated thermal efficiency

D. Volumetric efficiency

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  2. The pressure at the end of compression, in petrol engines, is approximately
  3. Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged?
  4. The knock in diesel engine occurs due to
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  12. In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the
  13. The term scavenging is generally associated with
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  16. The minimum cranking speed in case of petrol engine is about
  17. Scavenging is usually done to increase
  18. The knocking in spark ignition engines can be reduced by
  19. If the compression ratio in I.C. engine increases, then its thermal efficiency will
  20. In a naturally aspirated diesel engine, the air is supplied by
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  26. When crude oil is heated, then which of the following hydrocarbon is given off first?
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