The octane number of petrol, generally available, is

Internal Combustion Engines
The octane number of petrol, generally available, is

80 to 100

20 to 40

60 to 80

40 to 60

80 to 100

20 to 40

60 to 80

40 to 60

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Internal Combustion Engines
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will

Increase

Be independent

May increase or decrease depending on other factors

Decrease

Increase

Be independent

May increase or decrease depending on other factors

Decrease

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Internal Combustion Engines
Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.

Same

Double

Four times

Half

Same

Double

Four times

Half

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Internal Combustion Engines
Which of the following is false statement? Some of the methods used to reduce diesel smoke are as follows

Adherence to proper fuel specification

Avoidance of overloading

Using additives in the fuel

Increasing the compression ratio

Adherence to proper fuel specification

Avoidance of overloading

Using additives in the fuel

Increasing the compression ratio

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Internal Combustion Engines
Volatility of diesel fuel oil is

Temperature at which it solidifies or congeals

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

It catches fire without external aid

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

Temperature at which it solidifies or congeals

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

It catches fire without external aid

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

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Internal Combustion Engines
If petrol is used in a diesel engine, then

Efficiency will be low

Black smoke will be produced

Low power will be produced

Higher knocking will occur

Efficiency will be low

Black smoke will be produced

Low power will be produced

Higher knocking will occur

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Internal Combustion Engines

Internal Combustion Engines The octane number of petrol, generally available, is

Internal Combustion Engines The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will

Internal Combustion Engines Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.

Internal Combustion Engines Which of the following is false statement? Some of the methods used to reduce diesel smoke are as follows

Internal Combustion Engines Volatility of diesel fuel oil is

Internal Combustion Engines If petrol is used in a diesel engine, then

Internal Combustion Engines
The octane number of petrol, generally available, is

Internal Combustion Engines
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will

Internal Combustion Engines
Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.

Internal Combustion Engines
Which of the following is false statement? Some of the methods used to reduce diesel smoke are as follows

Internal Combustion Engines
Volatility of diesel fuel oil is

Internal Combustion Engines
If petrol is used in a diesel engine, then