Q. Which of the following statement is correct ?

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Q. In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

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Q. A diesel engine is __________ as compared to petrol engine, both running at rated load.

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Q. Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine ?

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Q. The pressure at the end of compression, in petrol engines, is approximately

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Q. The sparking in a petrol engine increases pressure and temperature of the products of combustion, but the volume remains constant.

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Q. The indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator.

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Q. A fuel of cetane number 40 has the same ignition quality as a mixture of

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Q. The two reference fuels used for cetane rating are

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Q. In petrol engines, the delay period is of the order of

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Q. The reflectivity of a reflector is defined as the fraction of neutrons entering the reflector which are returned to the core.

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Q. A supercharger receives air from the atmosphere surrounding the engine, compresses it to a higher pressure and then feeds it into the inlet valve of the engine.

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Q. Iso-octane (C8H18) has octane number of

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Q. The brake power is always greater than indicated power.

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Q. An ignition coil in the spark ignition engines supplies __________ voltage to the spark plug.

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Q. The operation of forcing additional air under pressure into the engine cylinder is known as

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Q. Which of the following statement is correct regarding normal cetaine?

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Q. Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has

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Q. As compared to air standard cycle, in actual working, the effect of variation in specific heats is to

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Q. The __________ engines can work on very lean mixture of fuel.

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