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Internal Combustion Engines

Internal Combustion Engines
A mixture containing 65% of iso-octane and 35% of normal heptane will have

Cetane number 65
Octane number 35
Octane number 65
Cetane number 35

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Internal Combustion Engines
In compression ignition engines, swirl denotes a

Rotary motion of the gases in the chamber
Haphazard motion of the gases in the chamber
None of the listed here
Radial motion of the gases in the chamber

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Internal Combustion Engines
The theoretically correct air fuel ratio for petrol engine is of the order of

0.25069444444444
0.37569444444444
0.62569444444444
0.50069444444444

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Internal Combustion Engines
The probability of knocking in diesel engines is increased by

Low volatility
All of these
High self ignition temperature
Higher viscosity

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

None of these
Lean
Chemically correct
Rich

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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

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MORE MCQ ON Internal Combustion Engines

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