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Automobile Engineering · all questions

Performance and Testing of Engines
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Engine cranks do no start during winter because of
1. Battery discharge
2. Weak spark
3. Worn out engine
4. Lean mixture

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The device for smoothing out the power impulses from the engine is called

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The tractive effort increases if the wheel diameter is

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If BP of a four-stroke petrol engine is 28 kW and mechanical efficiency is 80%, then IP is . . . . . . . . .

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The main purpose of inspection is-

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The testing equipment which gives a very close approximation of a road test in garage is called

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Morse test is carried out to determine the IP of a . . . . . . . .

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Which one of the following method for determination of engine friction is only applicable for diesel engines and also the gross fuel consumption is plotted against brake power and it is extended backwards to zero fuel consumption?

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High performance sports car with active exhaust system allows . . . . . . . .

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The ratio of brake power to indicated power of an IC engine is called

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The vibration damper on a crankshaft reduces the:

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Mean effective pressure at a given compression ratio is maximum when the air-fuel ratio is

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The brake specific fuel consumption is expressed as the fuel consumed . . . . . . . .

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Compression ratio of a petrol engine is

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When two rubber blocks are inclined to each other to a 'V' mounting, the rubber will be loaded in . . . . . . . .

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If the tractive effort of the vehicle at any point of time during motion is more than the resistance of vehicle, then the vehicle will be under

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Relative efficiency is the ratio of

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For checking the performance of an automobile which of the following test is necessary?

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The ratio of mass of air (or mixture) retained to the mass of trapped cylinder charge is called as . . . . . . . .

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About how much percentage of heat energy equivalent is overcoming engine friction?

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