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Internal Combustion Engines

Internal Combustion Engines
Polymerization is a chemical process in which molecules of a compound become

Larger
Smaller
Liquid
Slowed down

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Internal Combustion Engines
A higher compression ratio causes

Acceleration in the rate of combustion
Any one of these
Increase in detonation
Pre-ignition

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Internal Combustion Engines
The reference fuels for knock rating of spark ignition engines would include

Normal heptane and iso-octane
Normal octane and aniline
Iso-octane and normal hexane
Iso-octane and alpha-methyl naphthalene

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Internal Combustion Engines
The voltage required to produce a spark across the gap, between the sparking points is

2000 to 4000 volts
10,000 to 12,000 volts
6000 to 10,000 volts
4000 to 6000 volts

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

100
120
50

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Internal Combustion Engines
The sensing element in the control system of nuclear reactors measures the _________ of the neutron flux in the reactor.

Density
None of these
Temperature
Volume

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