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

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

2000Â°C

500Â°C

1000Â°C

250Â°C

2000Â°C

500Â°C

1000Â°C

250Â°C

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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

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

Temperature at which it catches fire without external aid

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

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

Temperature at which it catches fire without external aid

Temperature at which it solidifies or congeals

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Internal Combustion Engines
For the same compression ratio

Both Otto and Diesel cycles are, equally efficient

Diesel cycle is more efficient than Otto

Compression ratio has nothing to do with efficiency

Otto cycle is more efficient than the Diesel

Both Otto and Diesel cycles are, equally efficient

Diesel cycle is more efficient than Otto

Compression ratio has nothing to do with efficiency

Otto cycle is more efficient than the Diesel

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Internal Combustion Engines
Crankcase explosion in I.C. engines usually occurs as

First a big explosion followed by a mil explosion

Never occurs

Both mild and big explosions occurs simultaneously

First a mild explosion followed by a bi explosion

First a big explosion followed by a mil explosion

Never occurs

Both mild and big explosions occurs simultaneously

First a mild explosion followed by a bi explosion

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Internal Combustion Engines
The self ignition temperature of petrol is _________ as compared to diesel oil.

Lower

Higher

None of these

Same

Lower

Higher

None of these

Same

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Internal Combustion Engines
The cetane number of diesel oil, generally available, is

40 to 55

20 to 25

25 to 30

30 to 40

40 to 55

20 to 25

25 to 30

30 to 40

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Internal Combustion Engines

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

Internal Combustion Engines Flash point of fuel oil is

Internal Combustion Engines For the same compression ratio

Internal Combustion Engines Crankcase explosion in I.C. engines usually occurs as

Internal Combustion Engines The self ignition temperature of petrol is _________ as compared to diesel oil.

Internal Combustion Engines The cetane number of diesel oil, generally available, is

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

Internal Combustion Engines
Flash point of fuel oil is

Internal Combustion Engines
For the same compression ratio

Internal Combustion Engines
Crankcase explosion in I.C. engines usually occurs as

Internal Combustion Engines
The self ignition temperature of petrol is _________ as compared to diesel oil.

Internal Combustion Engines
The cetane number of diesel oil, generally available, is