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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Q. The ratio of the brake power to the indicated power is called

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Q. The increase of efficiency of a compression ignition engine, as the load decreases, is due to

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Q. The knocking tendency in spark ignition engines can be decreased by adding dopes like tetra ethyle lead and ethylene dibromide.

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Q. A diesel engine has compression ratio from

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Q. A petrol engine, during suction stroke draws

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Q. A supercharged engine as compared to an ordinary engine

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Q. In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

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Q. The function of a distributor in a coil ignition system of I.C. engines is

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Q. A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be

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