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Internal Combustion Engines

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

0
120
100
50

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Internal Combustion Engines
The reflectivity depends upon

Geometry of the reflector
All of these
Properties of the reflector
Energy of neutrons

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Internal Combustion Engines
The cetane (C₁₆H₃₄) which is a straight chain paraffin, is assigned a cetane number of

120
50
100
0

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

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

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Internal Combustion Engines
The fuels in order of decreasing knock tendency for spark ignition engines are

Napthene, paraffin, aromatic
Napthene, aromatics, paraffin
Paraffin, aromatic, napthene
Paraffin, napthene, aromatic

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

120
100
50

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