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Internal Combustion Engines

Internal Combustion Engines
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

240°C
80°C
120°C
180°C

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

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

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

Low volatility
High self ignition temperature
Higher viscosity
All of these

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Internal Combustion Engines
Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of

120
100
0
50

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Internal Combustion Engines
Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m.

Twice
Equal to
One-half
Four-times

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Internal Combustion Engines
The reflectivity depends upon

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

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