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Internal Combustion Engines

Internal Combustion Engines
The pressure at the end of compression in the case of diesel engine is of the order of

12 kg/cm
35 kg/cm
20 kg/cm
6 kg/cm

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Internal Combustion Engines
The pressure at the end of compression, in petrol engines, is approximately

25 bar
20 bar
35 bar
10 bar

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Internal Combustion Engines
When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as

Centre of gravity
Metacentre
Centre of buoyancy
Centre of pressure

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

180°
200°
125°
235°

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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

Increasing the compression ratio
Using additives in the fuel
Adherence to proper fuel specification
Avoidance of overloading

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Internal Combustion Engines
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

Efficiency ratio
Net efficiency
Overall efficiency
Relative efficiency

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