The burger vector is perpendicular to the dislocation line in ____________ while it is parallel for ________________

edge dislocation, mixed dislocation

screw dislocation, edge dislocation

edge dislocation, screw dislocation

edge dislocation, mixed dislocation

mixed dislocation, screw dislocation

In a positive edge dislocation, the atomic arrangement results in a ____________ above the slip plane and a ______________ below the slip plane.

tensile stress, compressive stress

compressive stress, tensile stress

tensile stress, compressive stress

compressive stress, compressive stress

Which of the following is Not a structure insensitive property?

Coefficient of thermal expansion

Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.

1.	The burger vector is perpendicular to the dislocation line in ____________ while it is parallel for ________________
A.	screw dislocation, edge dislocation
B.	edge dislocation, screw dislocation
C.	edge dislocation, mixed dislocation
D.	mixed dislocation, screw dislocation
Answer» C. edge dislocation, mixed dislocation

Discussion

2.	A pure edge dislocation can move in direction perpendicular to its length by _________ however, it may move vertically (along its length) by a process known as ______
A.	glide, climb
B.	climb, glide
C.	kink, glide
D.	kink, jog
Answer» B. climb, glide

Discussion

3.	In a positive edge dislocation, the atomic arrangement results in a ____________ above the slip plane and a ______________ below the slip plane.
A.	compressive stress, tensile stress
B.	tensile stress, compressive stress
C.	compressive stress, compressive stress
D.	tensile stress, tensile stress
Answer» B. tensile stress, compressive stress

Discussion

4.	The dislocation is considered as the region of localized lattice disturbance separating the slipped and unslipped areas in a crystal.
A.	True
B.	False
Answer» B. False

Discussion

5.	For a given metal, the energy required to move an atom from the interior of a crystal to its surface is E=1eV (0.16*10-18). Find the fraction of the vacant lattice site in metal at 500 degree Celsius.
A.	3.06*10-7
B.	1.02*10-10
C.	6.27*10-3
D.	8.2*10-18
Answer» B. 1.02*10-10

Discussion

6.	Which of the following defect is a thermodynamically stable defect?
A.	Vacancy
B.	Interstitial atom
C.	Dislocation
D.	Stacking fault
Answer» B. Interstitial atom

Discussion

7.	Which of the following is not a point defect?
A.	Vacancy
B.	Interstitial atom
C.	Impurity atom
D.	Dislocation
Answer» E.

Discussion

8.	Which of the following is Not a structure sensitive property?
A.	Yield strength
B.	Fracture Strength
C.	Semiconductor property
D.	Specific heat
Answer» E.

Discussion

9.	Which of the following is Not a structure insensitive property?
A.	Elastic modulus
B.	Melting point
C.	Coefficient of thermal expansion
D.	Electrical resistivity
Answer» E.

Discussion

Explore topic-wise MCQs in Mechanical Metallurgy.

The burger vector is perpendicular to the dislocation line in while it is parallel for ____

A pure edge dislocation can move in direction perpendicular to its length by ___ however, it may move vertically (along its length) by a process known as

In a positive edge dislocation, the atomic arrangement results in a above the slip plane and a __ below the slip plane.

The dislocation is considered as the region of localized lattice disturbance separating the slipped and unslipped areas in a crystal.

For a given metal, the energy required to move an atom from the interior of a crystal to its surface is E=1eV (0.16*10-18). Find the fraction of the vacant lattice site in metal at 500 degree Celsius.

Which of the following defect is a thermodynamically stable defect?

Which of the following is not a point defect?

Which of the following is Not a structure sensitive property?

Which of the following is Not a structure insensitive property?

Explore topic-wise MCQs in Mechanical Metallurgy.

The burger vector is perpendicular to the dislocation line in ____________ while it is parallel for ________________

A pure edge dislocation can move in direction perpendicular to its length by _________ however, it may move vertically (along its length) by a process known as ______

In a positive edge dislocation, the atomic arrangement results in a ____________ above the slip plane and a ______________ below the slip plane.

The dislocation is considered as the region of localized lattice disturbance separating the slipped and unslipped areas in a crystal.

For a given metal, the energy required to move an atom from the interior of a crystal to its surface is E=1eV (0.16*10-18). Find the fraction of the vacant lattice site in metal at 500 degree Celsius.

Which of the following defect is a thermodynamically stable defect?

Which of the following is not a point defect?

Which of the following is Not a structure sensitive property?

Which of the following is Not a structure insensitive property?

The burger vector is perpendicular to the dislocation line in while it is parallel for ____

A pure edge dislocation can move in direction perpendicular to its length by ___ however, it may move vertically (along its length) by a process known as

In a positive edge dislocation, the atomic arrangement results in a above the slip plane and a __ below the slip plane.