Physics of Metals in Metallurgy MCQ Questions and Answers

Physics of Metals in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Physics of Metals in Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Physics of Metals in Metallurgy are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-2 section-1

In an ionic crystal if the valancies of cation and anion are V_C and V_A and the coordination numbers of cation and anions are Nc and N_A respectively, then the necessary condition for obtaining a stable crystal structure is

A) $$\frac{{{V_C}}}{{{N_C}}} = \frac{{{V_A}}}{{{N_A}}}$$ B) V_C.V_A = N_C.N_A C) $$\frac{{{V_C}}}{{{N_A}}} = \frac{{{V_A}}}{{{N_C}}}$$ D) $$\frac{{{V_C}}}{{{V_A}}} = \frac{{\surd {N_C}}}{{\surd {N_A}}}$$

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In a binary system A-B, ε_AA, ε_BB and ε_AB correspond to A-A, B-B and A-B bond energies respectively. The miscibility gap will occur, if

A) $${\varepsilon _{AB}}$$ B) $${\varepsilon _{AB}} < \frac{1}{2}\left( {{\varepsilon _{AA}} + {\varepsilon _{BB}}} \right)$$ C) $${\varepsilon _{AB}} = \frac{1}{2}\left( {{\varepsilon _{AA}} + {\varepsilon _{BB}}} \right)$$ D) $${\varepsilon _{AB}} < \frac{1}{4}\left( {{\varepsilon _{AA}} + {\varepsilon _{BB}}} \right)$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Slipplane in copper is

A) (100) B) (110) C) (111) D) (0001)

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The third peak in the X-ray diffraction pattern of a polycrystalline bcc metal is

A) (111) B) (110) C) (211) D) (220)

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Along which crystallographic direction, load must be applied in fcc single crystals so that slip starts Simultaneously only on six slip planes?

A) [110] B) [111] C) [001] D) [011]

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The following type of bonding is strongly directional in solids:

A) Vanderwalls B) Ionic C) Metallic D) Covalant

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Number of slip systems in an ideal close packed hexagonal structure is

A) 3 B) 12 C) 24 D) 48

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In one Fcc unit cell, there are

A) 4 tetrahedral and 8 octahedral sites B) 8 tetrahedral and 4 octahedral sites C) 12 tetrahedral and 4 octahedral sites D) 4 tetrahedral and 4 octahedral sites

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The atomic packing fraction of diamond cubic structure is

A) 0.34 B) 0.56 C) 0.68 D) 0.82

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

For a fcc unit cell, the ratio of the number of tetrahedral voids to the number of atoms is

A) 2 : 1 B) 3 : 1 C) 4 : 1 D) 5 : 1

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board