Q. The compression ratio in petrol engines is kept low as compared to diesel engines because higher compression ratio in petrol engines would lead to pre-ignition of fuel.

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Q. The cetane (C16H34) which is a straight chain paraffin is assigned a cetane number of

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Q. Morse test is used to determine the I.P. of a

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Q. The correct mixture strength (by weight) for petrol is about

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Q. The working pressure and temperature inside the cylinder of an internal combustion engine is __________ as compared to a steam engine.

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Q. The scavenging efficiency of a four stroke cycle diesel engine is

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Q. The voltage required to produce a spark across the gap, between the sparking points is

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Q. The control rods in the control system of nuclear reactors are used to

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Q. Theoretically, a four stroke cycle engine should develop __________ power as that of a two stroke cycle engine.

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Q. Light weight substances can not be effective moderators.

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Q. The higher combustion chamber wall temperature in compression ignition engines will __________ knocking tendency.

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Q. The nuclear radiators produced in a reactor which must be sheilded are

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Q. A moderator

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Q. In a four stroke cycle diesel engine, the exhaust valve

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Q. The two stroke cycle engines have lighter flywheel.

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Q. The thermodynamic cycle on which the petrol engine works, is

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Q. The inlet valve of a four stroke cycle internal combustion engine remains open for

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Q. The advancing of spark timing in spark ignition engines will __________ knocking tendency.

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Q. The knocking in spark ignition engines can be reduced by

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Q. An atom bomb utilises uncontrolled nuclear fission.

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