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21.SSC JE (ME)II Material Science Booster Quiz-3
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Question 1
‘Tempering’ of quenched martensite steel is necessary to improve the _________.
Question 2
Which one of the following is the process to refine the grains of metal after it has been distorted by hammering or cold working?
Question 3
The iron-carbon diagram and the TTT curves are determined under
Question 4
All of the following statements about yield point phenomenon is true except
Question 5
A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength will
Question 6
Steel can be hardened quickly by ______ process
Question 7
Small percentage of boron is added to steel to
Question 8
Under microscope Ferrite appears as _________.
Question 9
_______ does not certain tin as an alloying element.
Question 10
Which one of the following is correct for ‘Burgers vector’ in screw dislocation _________?
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Jul 28AE & JE Exams