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GATE ME: Engineering Materials Champion Quiz 1

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Question 1

Pearlite phase in an iron-carbide phase diagram is

Question 2

For a ductile material, toughness is a measure of

Question 3

The crystal structure of austenite is ________.

Question 4

Which material has the highest electrical conductivity?

Question 5

The effective number of lattice points in the unit cell of simple cubic, body centered cubic, and face centered cubic space lattices, respectively, are

Question 6

Which of the following composites are ‘dispersion-strengthened composites’?

Question 7

The defect responsible for the phenomenon of slip, by which most metals deform plastically, is known as

Question 8

It is seen that in a concentrated vertical load of 100 KN what will be the stress σ_z at point (r, θ, z) = (1, 20^o, 2).

Question 9

A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under:

Question 10

At room temperature, a-iron contains negligible amount of carbon, cementite contains 6.67% C and pearlite contains 0.8% [C]. Pearlite contains how much cementite?

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ESE & GATE ME Engineering Materials

Jul 7ESE & GATE ME