A fuel of cetane number 40 has the same ignition quality as a mixture of

Internal Combustion Engines
A fuel of cetane number 40 has the same ignition quality as a mixture of

40% alpha methyl naphthalene and 60% cetane

40% diesel and 60% petrol

40% cetane and 60% alpha methyl naphthalene

40% petrol and 60% diesel

40% alpha methyl naphthalene and 60% cetane

40% diesel and 60% petrol

40% cetane and 60% alpha methyl naphthalene

40% petrol and 60% diesel

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Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is

V₀ / (V₀ + V₁)

V₁ / (V₀ + V₁)

2V₁ / (V₀ + V₁)

2V₀ / (V₀ + V₁)

V₀ / (V₀ + V₁)

V₁ / (V₀ + V₁)

2V₁ / (V₀ + V₁)

2V₀ / (V₀ + V₁)

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Internal Combustion Engines
Compression ratio of I.C. Engines is

The ratio of volumes of air in cylinder before compression stroke and after compression stroke

Volume displaced by piston per stroke and clearance volume in cylinder

Swept volume/cylinder volume

Ratio of pressure after compression and before compression

The ratio of volumes of air in cylinder before compression stroke and after compression stroke

Volume displaced by piston per stroke and clearance volume in cylinder

Swept volume/cylinder volume

Ratio of pressure after compression and before compression

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Internal Combustion Engines
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

Volumetric efficiency

Overall efficiency

Mechanical efficiency

Indicated thermal efficiency

Volumetric efficiency

Overall efficiency

Mechanical efficiency

Indicated thermal efficiency

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

250Â°C

2000Â°C

500Â°C

1000Â°C

250Â°C

2000Â°C

500Â°C

1000Â°C

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Internal Combustion Engines
The air-fuel ratio of the petrol engine is controlled by

Injector

Governor

Carburettor

Fuel pump

Injector

Governor

Carburettor

Fuel pump

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Internal Combustion Engines

Internal Combustion Engines A fuel of cetane number 40 has the same ignition quality as a mixture of

Internal Combustion Engines If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is

Internal Combustion Engines Compression ratio of I.C. Engines is

Internal Combustion Engines The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

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 air-fuel ratio of the petrol engine is controlled by

Internal Combustion Engines
A fuel of cetane number 40 has the same ignition quality as a mixture of

Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then propulsive efficiency of a turbojet engine is

Internal Combustion Engines
Compression ratio of I.C. Engines is

Internal Combustion Engines
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

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 air-fuel ratio of the petrol engine is controlled by