Engineering :: Automobile Engineering

@ : Home > Mechanical Engineering > Automobile Engineering

281.

Air injection in case of S.I. engine refers to injection of

282.

Diesel engine as compared to petrol engines require

A.	Biggenr flywheels	B.	Smaller flywheel
C.	Same size flywheel	D.	No flywheel
E.	Flywheel whose size may be less or more depending on several other factors

283.

Ethyl fluid is used as

A.	To increase cetane rotary of fuel	B.	To increase octane rating of fuel
C.	As a detonating agent	D.	As a superior type of fluid compared to others
E.	To improve lubricating quality of fuel

284.

Theoretical correct air-fuel ratio for tetrol engine is

285.

The magneto in an automobile is basically

286.

The maximum temperature in an I.C. engine is of the order of

287.

Pick up the wrong statement

A.	Thermal efficiency of diesel engine is about 34%	B.	Theoretically correct air fuel mixture for petrol engine is about 1.5 : 1
C.	High speed compression engines operate on dual combustion cycle	D.	Diesel engines are CI engines
E.	SI engines are quality governed engines

288.

In a typical medium speed 4-stroke cycle diesel engine, the inlet value

A.	Opens at 20? before TDC and closes at 35? after BDC	B.	Opens at TDC and closes at BDC
C.	Opens at 10? after TDC and closes at 20? after BDC	D.	Remains open for 200?C
E.	None of the above

289.

In case of automobile moving under normal road conditions the amount of fuel injected is proportional to

A.	speed of vehicle	B.	square of speed of vehicle
C.	square root of speed of vehicle	D.	none of the above

290.

In a 2-stroke S.I. engine

A.	exhaust and transfer (inlet) ports open and cloe simultaneously	B.	exhaust port opens 5? before the transfer port and closes 5? after the transfer port
C.	exhaust port opens 5? ahead of the transfer port but both ports close simultaneously	D.	none of the above