Answer Posted / nirmal vyas

When the rotational speed is equal to the numerical value
of the natural vibration then that speed is called critical
speed.

Explain difference between fissile and fertile materials?

761

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Under what condition the work done in reciprocating compressor will be least ?

626

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When was the first space rocket built?

711

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We have fifteen year old CNC turning lathe,placed in dust proof room,recently giving control problems frequently.We are considering to retrofit it.Pl.brief me about various point I should consider for accessing the mechanical health of machine.

1366

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please send previous year que. paper of je mech rrb.

1525

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Explain knurling.

619

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What is the mechanical advantage of a double pulley?

643

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Why air is not used to run the turbine?

1447

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What is the importance of workshop?

618

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Explain mechanism of fatigue failure.

1822

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How do you define mechanical efficiency in case of compressor? How it is different that of an IC engine?

1812

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Can any one plz help me to find aptitude questions on UG.NX software??

1390

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what is diameter of a suction pipe?

1554

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Which element is added in steel to increase resistance to corrosion ?

747

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I have purchased some circlips @rs 100/- p pc on 01.01.2017 ans some @rs.120/- p pc/@rs.90/- p pc dt. 31.03.2017 what is the ending price of per pcs

942

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