Test: I.C. Engines- 2 - Mechanical Engineering MCQ

 In SI Engines spark advance is generally of the order of

The efficiency of two stroke engine as compared to that of 4 stroke engine is

Lean AFM means:-

where Ø = equivalence ratio.

Motoring test is done to find out

If number of working stroke of 4 stroke engine is N, than for 2 stroke engine it will be

Which one of the following automobile exhaust gas pollutants is a major cause of photo chemical smog.

The discharge of hydrocarbons from petrol automobile exhaust is minimum when vehicle is

Increase in temperature of combustion increases which of these pollutants.

The cause of smoke from IC engines is

Turbochargers, are

Pressure of carbon monoxide in exhaust means.

At the time of starting the carburator supplies a mixure which is

CNG is a mixure of

​The peak pressure in IC engine combustion occurs at a crank angle of

Minimum air fuel ratio for Diesel engine is

With increases in humidity knocking in SI Engines

In SI engines spark plug should be located,

As delay period increases knocking in CI Engine

CI engines as compared to SI engines are

Which of the following has lowest self ignition temperature.

Air fuel mixure during Accelerating is around

which among the following has maximum efficiency