It is commonly observed that climb generate jog in dislocation line because ________

a jog is a form of dislocation climb

dislocation climb creates stress in dislocation line to bend it

the extra plane of atoms is highly unlikely to remove from the entire width of dislocation

a jog is a form of dislocation climb

The dislocation climb is least affected by ___________

movement of the atom to dislocation

movement of vacancy to the dislocation

Which of the following is a non-conservative type of movement of dislocation?

The glide of positive edge dislocation on the slip plane

The glide of positive screw dislocation on the slip plane

The climb of an edge dislocation

Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 7 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.	No Diffusion of atom is needed to allow ____________ to move from one plane to another plane.
A.	edge dislocation
B.	screw dislocation
C.	jog
D.	kink
Answer» C. jog

Discussion

2.	Dislocation climb is temperature dependent phenomena and present in both edge and screw dislocation.
A.	True
B.	False
Answer» C.

Discussion

3.	It is commonly observed that climb generate jog in dislocation line because ________
A.	dislocation climb creates stress in dislocation line to bend it
B.	the extra plane of atoms is highly unlikely to remove from the entire width of dislocation
C.	a jog is a form of dislocation climb
D.	statement is incorrect
Answer» C. a jog is a form of dislocation climb

Discussion

4.	The dislocation climb is least affected by ___________
A.	movement of the atom to dislocation
B.	movement of vacancy to the dislocation
C.	shear stress
D.	high Temperature
Answer» D. high Temperature

Discussion

5.	Which of the following is a non-conservative type of movement of dislocation?
A.	The glide of positive edge dislocation on the slip plane
B.	The glide of positive edge dislocation on the slip plane
C.	The glide of positive screw dislocation on the slip plane
D.	The climb of an edge dislocation
Answer» E.

Discussion

6.	A dislocation always feels the attractive force from the surface of the material.
A.	True
B.	False
Answer» C.

Discussion

7.	The stacking fault energy of aluminium is 200 mJ m^-2. Find the equilibrium spacing between partial dislocation of aluminium. If the shear modulus of the material is 27 GPa and lattice parameter is 3.57 A .
A.	20 A
B.	1000 A
C.	1 A
D.	20 micron
Answer» B. 1000 A

Discussion

Explore topic-wise MCQs in Mechanical Metallurgy.

No Diffusion of atom is needed to allow ____________ to move from one plane to another plane.

Dislocation climb is temperature dependent phenomena and present in both edge and screw dislocation.

It is commonly observed that climb generate jog in dislocation line because ________

The dislocation climb is least affected by ___________

Which of the following is a non-conservative type of movement of dislocation?

A dislocation always feels the attractive force from the surface of the material.

The stacking fault energy of aluminium is 200 mJ m-2. Find the equilibrium spacing between partial dislocation of aluminium. If the shear modulus of the material is 27 GPa and lattice parameter is 3.57 A .

The stacking fault energy of aluminium is 200 mJ m^-2. Find the equilibrium spacing between partial dislocation of aluminium. If the shear modulus of the material is 27 GPa and lattice parameter is 3.57 A .