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Internal Combustion Engines

Internal Combustion Engines
Compression loss in I.C engines occurs due to

All of these
Leaking piston rings
Use of thick head gasket
Clogged air inlet slots

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Internal Combustion Engines
In a four stroke cycle engine, the sequence of operations is

Expansion, compression, suction and exhaust
Suction, compression, expansion and exhaust
Suction, expansion, compression and exhaust
Compression, expansion, suction and exhaust

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Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

100
120
0
50

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Internal Combustion Engines
Alpha-methyl-naphthalene (C11H10) has a cetane number of

0
120
100
50

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Internal Combustion Engines
The object of providing masked inlet valve in the air passage of compression ignition engines is to

Enhance flow rate
Control air flow
Induce primary swirl
Induce secondary turbulence

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

2000°C
500°C
250°C
1000°C

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MORE MCQ ON Internal Combustion Engines

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