ESE ME Engineering Materials : National Champion Test for ESE & GATE ME Exams

Question 1

Match List-I (Alloy) with List-II (major Constituent) and select the correct answer using the codes give below the lists:

Question 2

Coefficient of Expansion is practically nil in a particular alloy. What is this alloy?

Question 3

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

Question 4

Why are Babbitt alloys used for bearing material?

Question 5

Admiralty Brass is used for

Question 6

Match List-I with List-II and select the correct answer using the code give below the lists:

Question 7

Interstitial Free Steels are used for

Question 8

Match List-I (Composition) with List-II (Application) and select the correct answer using the codes give below the lists:
List-I
[A]. Commercial bronze (10% Zn)
[B]. Red brass (15% Zn)
[C]. Aluminium brass (22% Zn 2% Al)
[D]. P-bronze (11% tin, small amount of P)
List-II
[1]. Radiator
[2]. Spring metal
[3]. Forging and stamping
[4]. Power plant and chemical equipment

Question 9

Consider the following statements:
Alloying elements are added to:
[1]. Improve hardness and toughness.
[2]. Corrosion and oxidation resistance improvement.
[3]. Improve mechinability and hardenability.
[4]. Increase weight and volume.
Which of these statements are correct?

Question 10

Aluminium Bronze is also known as __________.

Question 11

Nano composite materials are highly preferable in design consideration for their

Question 12

Injection moulding process used to produce thermoplastic matrix composites with fibre reinforcement normally gives

Question 13

ABS plastic is___.

Question 14

Which one of the following defects is ‘Schottky defect’?

Question 15

Surface imperfections which separate two orientations that are mirror image of one another is called

Question 16

Miller Indices for the hatched plane in the below unit cell are represented as ____.

Question 17

Match List-I with List-II and select the correct answer using the codes given below the Lists:

Question 18

Consider the following statements regarding material:
[1]. In micro structure external forms of the crystal may reflect the internal symmetry of atom
[2]. Electronic structure is arrangement of electrons in different orbit of atom
[3]. A crystal is formed by a non-repeating cell in uni-direction
[4]. Nuclear structure can be studied by Mossbauer studies
Which of these statements are correct?

Question 19

Consider the following statements about FCC and HCP crystal structure
(1). Both have same coordination number and atomic packing fraction.
(2). Both represent closely packed crystal structures.
(3). Both structure are generated by stacking of close packed planes on top of one another, but only the stacking sequence is different.
Which of these statements are correct?

Question 20

The correct order of cooling media for decreasing cooling rate is:

Question 21

Match List-I (Quenching media) with List-II (Structure produced) and select the correct answer using the codes given below the lists:

Question 22

Assertion (A):Carburizing is done on nonferrous alloys to increase the surface hardness.
Reason (R): Precipitation hardening of nonferrous alloys involves solution heat treatment followed by precipitation heat treatment.

Question 23

Consider the following statements in respect of austenitic stainless steels:
[1]. Austenitic stainless steels are hardened and strengthened by cold working.
[2]. Austeniitic stainless steels cannot be quenched and tempered.
Which of these statements is/are correct?

Question 24

When steel containing less than 0.85% carbon is cooled slowly below the lower critical point, it contains

Question 25

The ‘carbon boil’ is an important part of refining of steel in melting furnaces. Which of the following statements are correct for carbon boil?
[1]. Agitating the bath, causes thorough mixing
[2]. Reduction of carbon, nitrogen and hydrogen
[3]. Bring nonmetallic into contact with slag and hence cleans the metal