The correct mixture strength (by weight) for petrol is about

A. 14.6 : 1

B. 18.5 : 1

C. 20.4 : 1

D. 22.6 : 1

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  1. In a typical medium speed, 4-stroke cycle diesel engine
  2. In a four stroke cycle petrol engine, the charge is ignited at
  3. The fuel in diesel engine is normally injected at pressure of
  4. Which of the following fuel has little tendency towards detonation?
  5. Pick up the wrong statement about supercharging
  6. Volatility of diesel fuel oil is
  7. The object of supercharging the engine is
  8. The normal heptane (C7H16) is given a rating of ________ octane number.
  9. The power actually developed by the engine cylinder of an I.C. engine is known as
  10. The ratio of the volume of charge admitted at N.T.P. to the swept volume of the piston is called
  11. The accumulation of carbon in a cylinder results in increase of
  12. The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high…
  13. A mixture containing 65% of iso-octane and 35% of normal heptane will have
  14. The increase in intake temperature of internal combustion engines will _________ efficiency.
  15. The reason for supercharging in any engine is to
  16. In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have
  17. The purpose of testing an internal combustion engine is
  18. In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________…
  19. Which of the following is the lightest and most volatile liquid fuel?
  20. Compression ratio of I.C. Engines is
  21. In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in…
  22. The increase of efficiency of a compression ignition engine, as the load decreases, is due to
  23. Iso-octane (C8H18) has octane number of
  24. The following volume of air is required for consuming 1 litre of fuel by a four stroke engine
  25. The object of providing masked inlet valve in the air passage of compression ignition engines is to
  26. A stoichiometric air-fuel ratio is
  27. Crankcase explosion in I.C. engines usually occurs as
  28. For the same power developed in I.C. engines, the cheaper system is
  29. Which of the following statement is correct?
  30. The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed