Engineering :: Heat Engines

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Which of the following is a false stagement: The cause of excessive engine vibrations especially at high speeds in spark ignition engines is

[A].	Unequal compression of engine cylinders	[B].	Ignition distributor point not synchrohized
[C].	Unbalanced crankshaft	[D].	Unbalanced fan or loose fan blade
[E].	Unequal distribution of mixture

Answer: Option E