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

Inject fuel at a high velocity to facilitate atomization

Ensure that penetration is not high

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

All of these

Inject fuel at a high velocity to facilitate atomization

Ensure that penetration is not high

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

All of these

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Internal Combustion Engines
It the temperature of intake air in IC engines is lowered, then its efficiency will

Remain same

Decrease

Increase up to certain limit and then decrease

Increase

Remain same

Decrease

Increase up to certain limit and then decrease

Increase

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Internal Combustion Engines
A diesel engine has compression ratio from

15 to 25

6 to 10

25 to 40

10 to 15

15 to 25

6 to 10

25 to 40

10 to 15

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Internal Combustion Engines
In a typical medium speed, 4-stroke cycle diesel engine

Fuel injection starts at top dead center and ends at 20° after top dead center

Fuel injection starts at just before top dead center and ends just after top dead center

May start and end anywhere

Fuel injection starts at 10° before top dead center and ends at 20° after top dead center

Fuel injection starts at top dead center and ends at 20° after top dead center

Fuel injection starts at just before top dead center and ends just after top dead center

May start and end anywhere

Fuel injection starts at 10° before top dead center and ends at 20° after top dead center

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Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

(V₀/V₁)/ [1 + (V₀/V₁)²]

[2(V₀/V₁)]/ [1 + (V₀/V₁)²]

V₁/(V₀ + V₁)

V₀/(V₀ + V₁)

(V₀/V₁)/ [1 + (V₀/V₁)²]

[2(V₀/V₁)]/ [1 + (V₀/V₁)²]

V₁/(V₀ + V₁)

V₀/(V₀ + V₁)

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Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

Not effected

Decrease

None of these

Increase

Not effected

Decrease

None of these

Increase

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Internal Combustion Engines

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 It the temperature of intake air in IC engines is lowered, then its efficiency will

Internal Combustion Engines A diesel engine has compression ratio from

Internal Combustion Engines In a typical medium speed, 4-stroke cycle diesel engine

Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

Internal Combustion Engines In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

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
It the temperature of intake air in IC engines is lowered, then its efficiency will

Internal Combustion Engines
A diesel engine has compression ratio from

Internal Combustion Engines
In a typical medium speed, 4-stroke cycle diesel engine

Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.