ISRO Scientist or Engineer Mechanical 2008

Instructions

For the following questions answer them individually

Question 1

The ultimate tensile strength and yield strength of most of the metals, when temperature falls from $$0$$ to $$-150^\circ C$$ will

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Question 2

“Troosite” is obtained when

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Question 3

Induction hardening is the process of

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Question 4

Heavy water is used in atomic powerplants as

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Question 5

Which one is not the purpose of heat treatmentof steels?

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Question 6

A cold chisel is made of

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Question 7

A body which is permanently deformedis said to have undergone

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Question 8

The defect responsible for the phenomenaofslip, by which most metals deform plastically, is known as

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Question 9

With a punch for which the maximum crushingstress is 4 times the maximum shearing stress of the plate, the biggest hole that can be punchedin the plate would be of diameter equal to

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Question 10

For traction applications, the type of motor best suited is

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