Test: IC Engine Level - 2 - Mechanical Engineering MCQ

Methane burns with stoichiometric quantity of air. The air-fuel ratio by weight is

Match List-I (Air-fuel ratio by mass) with List- II (Engine operation mode) and select correct answer using the codes given below the lists:

Stoichiometric air-fuel ratio by volume for combustion of methane in air is :

Auto- ignition time for petrol-air mixture is minimum when the ratio of actual fuel-air ratio and chemically correct fuel-air ratio is

In spark ignition engines knocking can be reduced by:

The tendency of knocking in CI engine reduced by

Match List-I (SI engine Operational Mode) with List-II (Air Fuel Ratio by Mass) and select correct answer using the codes given below the lists:

Match List-I (SI engine Aperational Mode) with List-II (Opproximate A/F Ratio) and select correct answer using the codes given below the lists:

The purpose of employing supercharging for an engine is

What is the main objective of supercharging of the engine?

For minimizing knocking tendency in SI engine, where should the spark plug be located?

What is the purpose of supercharging an engine?

Increase in the compression ratio in Otto cycle may cause

Pick the odd one

Most high speed compression engines operate on

The intake charge in a diesel engine consists of

This is considered as the first link in transmitting the gas forces to the output shaft

The purpose of balance weight in crankshaft is to

Consider the following parts of IC Engine :
1. Rocker arm 2. Follower
3. Cams 4. Camshaft
5. Crankshaft
Which among the above constitutes the part of valve train system ?

Gudgeon pin forms the link between

Engine of different cylinder dimensions, power and speed are compared on the basis of

All of the following are correct except : Inlet-valve mach index is dependent on