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National Champion Test - GATE 2018 ME : Engineering Materials

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Question 1

The operation in which oil is permeated into the pores of a powder metallurgy product is known as ______.

Question 2

The capacity of a material to absorb energy when deformed elastically and then to have this energy recovered upon unloading is called

Question 3

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 4

Which one of the following possesses the property of non-sparking character?

Question 5

Planar density of (1, 0, 0) planes of FCC structure is _________ %.

Question 6

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 7

Given the atomic weight of Fe is 56 and that of C is 12, the weight percentage of carbon in cementite (Fe₃C) is ________

Question 8

Consider the following regarding their crystal structure
[1]. Alpha iron
[2]. Aluminium
[3]. Nickel
[4]. Zinc
Which of the following has FCC Structure?

Question 9

A binary alloy of Cu and Ni containing 20 wt% Ni at a particular temperature coexists with solid phase of 26 wt% Ni and liquid phase of 16 wt% Ni. What is the weight ratio of solid phase and liquid phase?

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

Aug 27ESE & GATE ME