Flash point of fuel oil is

Internal Combustion Engines
Flash point of fuel oil is

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

Temperature at which it catches fire without external aid

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

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

Temperature at which 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
In a petrol engine, the mixture has the lowest pressure at the

Beginning of suction stroke

End of compression stroke

None of these

End of suction stroke

Beginning of suction stroke

End of compression stroke

None of these

End of suction stroke

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Internal Combustion Engines
Which of the following statement is correct regarding petrol engines?

All of these

The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug

The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition

A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure

All of these

The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug

The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition

A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure

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Internal Combustion Engines
The inlet value of a four stroke cycle I.C engine remains open for nearly

235Â°

125Â°

180Â°

200Â°

235Â°

125Â°

180Â°

200Â°

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Internal Combustion Engines
The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)

1 + rγ - 1

1 - (1/rγ - 1)

1 - rγ - 1

None of these

1 + rγ - 1

1 - (1/rγ - 1)

1 - rγ - 1

None of these

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Internal Combustion Engines
The ignition quality of diesel oil is expressed by

Cetane number

Calorific value

Octane number

None of the listed here

Cetane number

Calorific value

Octane number

None of the listed here

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Internal Combustion Engines

Internal Combustion Engines Flash point of fuel oil is

Internal Combustion Engines In a petrol engine, the mixture has the lowest pressure at the

Internal Combustion Engines Which of the following statement is correct regarding petrol engines?

Internal Combustion Engines The inlet value of a four stroke cycle I.C engine remains open for nearly

Internal Combustion Engines The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Internal Combustion Engines The ignition quality of diesel oil is expressed by

Internal Combustion Engines
Flash point of fuel oil is

Internal Combustion Engines
In a petrol engine, the mixture has the lowest pressure at the

Internal Combustion Engines
Which of the following statement is correct regarding petrol engines?

Internal Combustion Engines
The inlet value of a four stroke cycle I.C engine remains open for nearly

Internal Combustion Engines
The air standard efficiency of an I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Internal Combustion Engines
The ignition quality of diesel oil is expressed by