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Latest Mechanical Interview Questions & Answers | Thermal Interview Q & A | Automobile Interview Q & A
Latest Interview Questions & Answers

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What happens if gasoline is used in a Diesel engine?Diesel engine will work ?
No, It will not work,as the Compression ratio of Petrol engine is 6 to 10 & that of Diesel engine is 15 to 22. Thus on such high compression, gasoline gets highly compressed & it may blast.

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Which Mechanism is used in Automobile gearing system
Differential mechanism

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Why different types of sound are produced in different bikes though they say run on SI engine
Engine specifications are different in different manufactures like as Bore Diameter(CC), Ignition timing.Also the exhaust passage take more responsible for sound.

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Why entropy decreases with the increase in temperature?
ds=dQ/TEntropy is inversely proportional to the temperature so.as temp. increases,entropy decreases.

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1 hp how much watt?
746.2Watt

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How to calculate bearing number to diameter of the inner and outer
Divide the shaft diameter size by 5, it will give last two digitof the bearing no. and according to type of load we have tochose the type of bearing and that will give prior no. ofthe bearing.

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Explain Bicycle rear wheel Sprocket working?
Rear wheel sprocket works under the principle of ratchet and pawl.

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Definition of Octane number & Cetane number
Octane No.- Octane number is defined as the percentage, by volume, of iso octane in the mixture of iso octane and h-heptane. It is the measure of rating of SI engine. Cetane No.- Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of n-cetane and alpha methyl naphthalene. It is the measure of rating of CI engine.

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Poisons ratio is higher in (rubber/steel/wood)
When a material is compressed in one direction, it usuallytends to expand in the other two directions perpendicular tothe direction of compression. This phenomenon is called thePoisson effect. Poisson’s ratio is a measure of the Poisson effect. For rubber = 0.5 For steel = 0.288 For wood < 0.2 Thus Poisson’s ratio is higher in RUBBER.

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The Fatigue life of a part can be improved by ?
Improving the surface finish by Polishing & providing residual stress by Shot peening.

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When crude oil heated Which Hydro carbon comes first?

Natural gas(Gasoline)… at 20 Celsius
Technical Interview Questions & Answers | Technical Interview Questions & Tips | Strength Of Materials Interview QuestionsLatest Mechanical Updates

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2 Responses to “Latest Mechanical Interview Questions & Answers | Thermal Interview Q & A | Automobile Interview Q & A”
1.

rajeev says:
August 15, 2011 at 12:39 pm

i’m try to 1st really, this is the best site for all information who is related to mechanical student.thanks lot of.
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2.

kamal azad says:
October 17, 2011 at 3:15 pm

thanks to blogger for give us relevant info about mechanical question.
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