Mechanical Engineering :: IC Engine and Nuclear Power Plants
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Which of the following does not relate to a compression ignition engine?
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Which of the following statement is correct regarding petrol engines?
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Supercharging __________ the power developed by the engine.
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In compression ignition engines, swirl denotes a
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A mixture containing 65% of iso-octane and 35% of normal heptane will have
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Which of the following statement is wrong ?
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The maximum propulsive efficiency of a turbo-jet engine is at a speed of
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In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then __________ is employed.
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A.
A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure.
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B.
The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug.
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C.
The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition.
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D.
all of the above
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A.
In compression ignition engines, detonation occurs near the beginning of combustion.
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B.
Since the fuel, in compression ignition engines, is injected at the end of compression stroke, therefore, there will be no pre-ignition.
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C.
To eliminate knock in compression ignition engines, we want to achieve auto-ignition not early and desire a long delay period.
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D.
In compression ignition engines, because of hetrogeneous mixture, the rate of pressure rise is comparatively lower.
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