Free energy of crystal __________ by introduction of dislocation in the structure.

sometimes increases and sometimes decreases

In case of screw dislocation, the stresses around dislocation are ________

tensile in nature for right-hand screw dislocation

tensile in nature for left-hand screw dislocation

compressive in nature for right-hand screw dislocation

there are no tensile or compressive normal stresses

14 + Mcqs in Stress Field Energy Dislocation in Mechanical Metallurgy Page 1 McqOptions

Explore topic-wise MCQs in Mechanical Metallurgy.

The number of dislocation of the same sign in the vertical plane is in stable equilibrium.

Two opposite sign dislocations are separated by 100 nm in iron with grain size 4 mm. Determine the attractive force and total force on the two dislocations? Shear modulus of iron is 80 GPa, and the lattice parameter is 2.86 Ao

The force is _ between 2 parallel screw dislocation and for antiparallel screw dislocation.

Two edge dislocations of the same sign and same burger’s vector lie on above the same slip plane. If the energy of each dislocation is Q, what will be the difference in the total energy of two dislocations, when they are separated and when they are combined?

Dislocation of opposite sign on the same plane will ___________ each other.

Dislocation of same sign on the same plane will ___________ each other.

Shear stress required to bend a dislocation of radius R and burger vector b is P. What will be shear stress needed to turn a dislocation of radius 2R and burger’s vector 2b to bend the dislocation?

The following diagram shows a positive edge dislocation. The AA’ shows the slip plane for the dislocation. Above the slip plane stress is ___ in nature, and below the slip plane stress is _ in nature.

Free energy of crystal __________ by introduction of dislocation in the structure.

The strain energy of dislocation for each atom is in order of few __________

For a dislocation with burger’s vector equal to b, the strain energy per unit length is X. What will be the strain energy with burger’s vector is equal to 3b?

The ratio of strain energy of edge dislocation to screw dislocation is equal to ___________Where v is poison’s ratio, and b is the Burger’s vector.

One screw and one edge dislocation will have same strain energy if the burger vector is equal.

In case of screw dislocation, the stresses around dislocation are ________

Explore topic-wise MCQs in Mechanical Metallurgy.

The number of dislocation of the same sign in the vertical plane is in stable equilibrium.

Two opposite sign dislocations are separated by 100 nm in iron with grain size 4 mm. Determine the attractive force and total force on the two dislocations? Shear modulus of iron is 80 GPa, and the lattice parameter is 2.86 Ao

The force is _____________ between 2 parallel screw dislocation and ____________ for antiparallel screw dislocation.

Two edge dislocations of the same sign and same burger’s vector lie on above the same slip plane. If the energy of each dislocation is Q, what will be the difference in the total energy of two dislocations, when they are separated and when they are combined?

Dislocation of opposite sign on the same plane will ___________ each other.

Dislocation of same sign on the same plane will ___________ each other.

Shear stress required to bend a dislocation of radius R and burger vector b is P. What will be shear stress needed to turn a dislocation of radius 2R and burger’s vector 2b to bend the dislocation?

The following diagram shows a positive edge dislocation. The AA’ shows the slip plane for the dislocation. Above the slip plane stress is _________ in nature, and below the slip plane stress is _______ in nature.

Free energy of crystal __________ by introduction of dislocation in the structure.

The strain energy of dislocation for each atom is in order of few __________

For a dislocation with burger’s vector equal to b, the strain energy per unit length is X. What will be the strain energy with burger’s vector is equal to 3b?

The ratio of strain energy of edge dislocation to screw dislocation is equal to ___________Where v is poison’s ratio, and b is the Burger’s vector.

One screw and one edge dislocation will have same strain energy if the burger vector is equal.

In case of screw dislocation, the stresses around dislocation are ________

The force is _ between 2 parallel screw dislocation and for antiparallel screw dislocation.

The following diagram shows a positive edge dislocation. The AA’ shows the slip plane for the dislocation. Above the slip plane stress is ___ in nature, and below the slip plane stress is _ in nature.