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201.

Endurance test for I.C. engines is conducted for

202.

In a spark ignition engine supercharging

A.	Increases knocking tendency	B.	Decreases knocking tendency
C.	There is no effect on knocking	D.	Knocking is affected by other factors

203.

In a Bomb calorimeter the fuel to be tested is burnt

A.	At constant volume	B.	At constant pressure
C.	There is no consideration of volume or pressure	D.	In open atmosphere
E.	At constant temperature

204.

Calorific value of methane gas can be determined by

A.	Bomb calorimeter	B.	Bunsen's apparatus
C.	Orsat's apparatus	D.	None of the above

205.

Which one of the following assumptions is not involved while deriving relation for air standard efficiency of Otto cycle?

A.	The working fluid is air for which the specific heats are constant	B.	There is no chemical reaction inside the engine clinder
C.	Expansion and compression are adiabatic	D.	There is always thermal and chemical equilibrium
E.	The engine operates at mederate rpm

206.

In a compression ignition engine the fuel consumption will increase if the back (exhaust) pressure is

207.

Which one of the following factors will not assist in smooth running of a compression ignition engine?

A.	Moderate rate of pressure rise	B.	Short delay period
C.	Minimum of after burning	D.	High ignition temperature of fuel
E.	None of the above

208.

Movement of air inside engine cylinder does not help in

A.	Distribution of fuel	B.	Mixing of fuel with air
C.	Reduction of after burning	D.	Reducing noise

209.

In compression ignition engines swirl is

A.	Circular motion imparted to gases after combustion	B.	Circular motion imparted to suction air
C.	Radial motion imparted to fuel air mixture	D.	Directional movement of fuel spray
E.	None of the above

210.

Which one of the following factors will not assist in improving thermal efficiency of a compression ignition engine?

A.	Fine atomisation and even distribution of fuel	B.	Minimum heat loss during combustion
C.	Clear exhaust	D.	High surface to volume ratio
E.	Any of the above