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Internal Combustion Engines

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

20 bar
25 bar
10 bar
35 bar

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Internal Combustion Engines
The following volume of air is required for consuming 1 liter of fuel by a four stroke engine

56 m3
910 m3
5 m3
1 m3

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Internal Combustion Engines
A diesel engine as compared to petrol engine (both running and rated load) is

Equally efficient
Less efficient
Other factors will decide it
More efficient

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Internal Combustion Engines
The normal heptane (C₇H₁₆) is given a rating of ________ octane number.

100
120
50
0

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Internal Combustion Engines
Engine pistons are usually made of aluminium alloy because it

Absorbs shocks
Wear is less
Is stronger
Is lighter

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Internal Combustion Engines
The accumulation of carbon in a cylinder results in increase of

Volumetric efficiency
Ignition time
Effective compression ratio
Clearance volume

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