In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Internal Combustion Engines
In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Decrease

Increase

Not effect

None of the listed here

Decrease

Increase

Not effect

None of the listed here

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Internal Combustion Engines
Detonation is harmful due to

None of these

High intensity of knock causes crankshaft vibration and the engine runs rough

Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls

Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine

None of these

High intensity of knock causes crankshaft vibration and the engine runs rough

Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls

Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine

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Internal Combustion Engines
The frictional power (F.P.) is given by

P.

P. - I.P.

P.

F.P. = I.P. -

F.P. =

F.P. = I.P./

P./I.P.

P.

P. - I.P.

P.

F.P. = I.P. -

F.P. =

F.P. = I.P./

P./I.P.

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Internal Combustion Engines
The reason for supercharging in any engine is to

Reduce weight and bulk for a given output

Effect fuel economy

Increase power

Increase efficiency

Reduce weight and bulk for a given output

Effect fuel economy

Increase power

Increase efficiency

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Internal Combustion Engines
Volatility of diesel fuel oil is

Temperature at which it solidifies or congeals

Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off

It catches fire without external aid

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame

Temperature at which it solidifies or congeals

Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off

It catches fire without external aid

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame

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Internal Combustion Engines
In the opposed piston diesel engine, the combustion chamber is located

Below the piston

Above the piston

There is no such criterion

Between the pistons

Below the piston

Above the piston

There is no such criterion

Between the pistons

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Internal Combustion Engines

Internal Combustion Engines In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Internal Combustion Engines Detonation is harmful due to

Internal Combustion Engines The frictional power (F.P.) is given by

Internal Combustion Engines The reason for supercharging in any engine is to

Internal Combustion Engines Volatility of diesel fuel oil is

Internal Combustion Engines In the opposed piston diesel engine, the combustion chamber is located

Internal Combustion Engines
In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Internal Combustion Engines
Detonation is harmful due to

Internal Combustion Engines
The frictional power (F.P.) is given by

Internal Combustion Engines
The reason for supercharging in any engine is to

Internal Combustion Engines
Volatility of diesel fuel oil is

Internal Combustion Engines
In the opposed piston diesel engine, the combustion chamber is located