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20.SSC JE (ME)II Material Science Booster Quiz-2

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Question 1

Cast steel crankshaft surface is hardened by

Question 2

The fatigue strength of metal is improved by setting up compressive stresses in the surface by process known as __________.

Question 3

Match List I with List II and select the correct option.

Question 4

Addition of magnesium to cast iron increases its ____________.

Question 5

The Bauschinger effect is observed when

Question 6

A carbon steel having BHN 100 should have ultimate strength closer to

Question 7

If given relation is σ = 1000 (∈)^0.4 then the average stress is equal to

Question 8

__________ is added to raise the yield point of low carbon steel.

Question 9

For most brittle materials, the ultimate strength in compression is much larger than the ultimate strength in tension. This is mainly due to

Question 10

The alloying element mainly used to improve the endurance strength of steel materials is

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Jul 27AE & JE Exams