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The thermal efficiency of diesel engines on weak mixtures is

A. Unaffected

B. Lower

C. Higher

D. Dependent on other factors

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  1. The thermal efficiency of diesel engines is about
  2. A fuel of cetane number 40 has the same ignition quality as a mixture of
  3. A carburettor is used to supply
  4. In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air…
  5. The maximum propulsive efficiency of a turbojet engine is at a speed of
  6. The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio…
  7. Air fuel ratio at which a petrol engine cannot work is
  8. High speed compression engines operate on
  9. In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have
  10. The knocking in spark ignition engines can be reduced by
  11. Most high speed compression engines operate on
  12. The effective inhibitor of pre-ignition is
  13. In a four stroke cycle diesel engine, the inlet valve
  14. The object of providing masked inlet valve in the air passage of compression ignition engines is to
  15. Stoichiometric ratio is
  16. The air-fuel ratio of the petrol engine is controlled by
  17. A diesel engine is _________ as compared to petrol engine, both running at rated load.
  18. The term scavenging is generally associated with
  19. Combustion in compression ignition engines is
  20. Flash point of fuel oil is
  21. The thermodynamic cycle on which the petrol engine works, is
  22. Fuel oil consumption guarantees for I .C. engine are usually based on
  23. The frictional power (F.P.) is given by
  24. Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression…
  25. The scavenging efficiency of a four stroke cycle diesel engine is
  26. Compression ratio of I.C. Engines is
  27. A 75 cc engine has following parameter as 75 cc
  28. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is
  29. The compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because…
  30. In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the