Internal Combustion Engines
Flash point of fuel oil is

Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
Indicated by 90% distillation temperature, i.e. when 90% of sample oil has distilled off
Temperature at which it solidifies or congeals
Temperature at which it catches fire without external aid

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Internal Combustion Engines
In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to

Both (A) and (B)
Prevent sparking across the gap between the points
Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit
None of these

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