In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

500Â°C

250Â°C

1000Â°C

2000Â°C

500Â°C

250Â°C

1000Â°C

2000Â°C

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Internal Combustion Engines
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to

All of these

Inject fuel at a high velocity to facilitate atomization

Inject fuel in a chamber of high pressure at the end of compression stroke

Ensure that penetration is not high

All of these

Inject fuel at a high velocity to facilitate atomization

Inject fuel in a chamber of high pressure at the end of compression stroke

Ensure that penetration is not high

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Internal Combustion Engines
The fuels in order of decreasing knock tendency for spark ignition engines are

Paraffin, napthene, aromatic

Paraffin, aromatic, napthene

Napthene, paraffin, aromatic

Napthene, aromatics, paraffin

Paraffin, napthene, aromatic

Paraffin, aromatic, napthene

Napthene, paraffin, aromatic

Napthene, aromatics, paraffin

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Internal Combustion Engines
The knocking in diesel engines may be prevented by

All of these

Raising the compression ratio

Increasing the inlet pressure of air

Reducing the delay period

All of these

Raising the compression ratio

Increasing the inlet pressure of air

Reducing the delay period

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Internal Combustion Engines
If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

[2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)Â²]

(Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)Â²]

Vâ‚/(Vâ‚€ + Vâ‚)

Vâ‚€/(Vâ‚€ + Vâ‚)

[2(Vâ‚€/Vâ‚)]/ [1 + (Vâ‚€/Vâ‚)Â²]

(Vâ‚€/Vâ‚)/ [1 + (Vâ‚€/Vâ‚)Â²]

Vâ‚/(Vâ‚€ + Vâ‚)

Vâ‚€/(Vâ‚€ + Vâ‚)

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Internal Combustion Engines
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.

Above

None of these

Below

Equal to

Above

None of these

Below

Equal to

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Internal Combustion Engines

Internal Combustion Engines In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

Internal Combustion Engines The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to

Internal Combustion Engines The fuels in order of decreasing knock tendency for spark ignition engines are

Internal Combustion Engines The knocking in diesel engines may be prevented by

Internal Combustion Engines If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

Internal Combustion Engines The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.

Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

Internal Combustion Engines
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to

Internal Combustion Engines
The fuels in order of decreasing knock tendency for spark ignition engines are

Internal Combustion Engines
The knocking in diesel engines may be prevented by

Internal Combustion Engines
If Vâ‚ is the jet velocity and Vâ‚€ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

Internal Combustion Engines
The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.