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Internal Combustion Engines

Internal Combustion Engines
High speed compression engines operate on

Otto cycle
All of these
Dual combustion cycle
Diesel cycle

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Internal Combustion Engines
In order to eliminate knocking in compression ignition engines, there should be

Low compression ratio
High self ignition temperature of fuel
Late auto-ignition
Short delay period

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Internal Combustion Engines
A 75 cc engine has following parameter as 75 cc

Cylinder volume
Fuel tank capacity
Lube oil capacity
Swept volume

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Internal Combustion Engines
The knocking tendency in compression ignition engines for a given fuel will be

Enhanced by increasing compression ratio
None of these
Dependent on other factors
Enhanced by decreasing compression ratio

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Internal Combustion Engines
The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is

More
Less or more depending on operating conditions
Less
Same

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

125°
235°
180°
200°

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