Octane number is determined by comparing the performance of the petrol with the following hydrocarbons__________________?

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In a typical medium speed, 4-stroke cycle diesel engine ___________________?

A. fuelinjection starts at 10° before to dead center and ends at 20° after tor dead center B. fuel injection starts at top dead center and ends at 20° after top dead center C. fuel injection starts at just before top dead center and ends just after top deac center D. may start and end … In a typical medium speed, 4-stroke cycle diesel engine ___________________?Read More...

If the intake air temperature of I.C. engine increases, its efficiency will_________________?

A. increase B. decrease C. remain same D. unpredictable E. depend on other factors...

The mean effective pressure obtained from engine indicator indicates the________________?

A. maximum pressure developed B. minimum pressure C. instantaneous pressure at any instant D. exhaust pressure E. average pressure...

Which is false statement about advantages of V-type engine_________________?

A. compact design requiring lesser space B. improved distribution of air to cylinder C. casting less liable to distortion D. reduced torsional vibration because of shorter crankshaft E. less overhead clearance...

With increase in speed of vehicle, the back pressure will________________?

A. decrease B. increase C. remain unalfected D. depend on other factors E. none of the above...