Q. In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a

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Q. In petrol engines, using a fixed octane rating fuel, the increase in compression ratio will not effect the knocking tendency.

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Q. Supercharging is the process of supplying the intake air to the engine cylinder at a density __________ the density of the surrounding atmosphere.

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Q. The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of

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Q. In a four stroke cycle petrol engine, , the compression

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Q. Reflector in nuclear power plants is used to reflect neutrons back into the active core.

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Q. The air-fuel ratio of the petrol engine is controlled by

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Q. If the compression ratio in I.C. engine increases, then its thermal efficiency will

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Q. The relative efficiency of an I.C. engine is the ratio of the indicated thermal efficiency to the air standard efficiency.

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Q. The volumetric efficiency ofa well designed engine may be

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Q. Which of the following statement is correct regarding the features of a Breeder reactor?

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Q. In diesel engines, the ignition takes place due to the heat produced in the engine cylinder at the end of compression.

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Q. The fuels in order of decreasing knock tendency for spark ignition engines are

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Q. The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

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Q. Plutonium (Pu239) is produced

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Q. A petrol engine has compression ratio from

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Q. Detonation is harmful due to

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Q. The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in metres, N = Speed of engine in r.p.m., S - Spring balance reading in newtons, D = Dia. of brake drum in metres, and d = Dia. of rope in metres)

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Q. A power plant giving least running cost of production of electrical power is

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Q. The thermal efficiency of petrol and gas engines is about

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