Which is the hardest material on earth?

0 Answers  

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is it necessory to use heat exchanger in case of water cooled chillers & cooling towers?????

3 Answers  

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What is the circulation of I.O. pump of diesel engine?

2 Answers  

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1)Why Bearing used in Motor and pumps. 2) Why Mechanical seal used in Pumps.

16 Answers   Biocon, Exxon Mobil,

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wat is the difference b/w stress and pressure?

11 Answers   IMA, L&T, NTPC,

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How much calorific value of heat is needed to heat 00c of

0 Answers   ABC Inc, RRB, Siemens,

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A planet gear with 25 teeth is meshed with a sun gear of 100 teeth. Both are connected using a arm. How many rotations are needed for planet gear to complete one rotation around the sun gear?

6 Answers   Bhel, TATA,

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Kinetic friction when compared to Static friction is?

8 Answers   HAL,

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What is meant by gear ratio?

0 Answers  

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mechanical efficiency is high in petrol engines compared to diesel engines but why diesel engines are preferred in heavy duty vehicles

6 Answers   Valeo Lighting Systems India Private Limited,

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thermal engineering,strength of materials,design of machine element,

3 Answers   Bhel, Infotech, Maruti Suzuki, ONGC, TCS, TVS,

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generater working principle

1 Answers   VEPL,

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