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Q1. Phenomenon of cross slip occurs in ________

(a) Point imperfections
(b) Line imperfections
(c) Volume imperfections
(d) Surface imperfections

Q2. As the grain size of a meal increases, its ductility ________

(a) Decreases
(b) Increases
(c) Remains constant
(d) No effect of grain size on ductility

Q3. As the grain size of a metal increases, its strength ________

(a) Decreases
(b) Increases
(c) Remains constant
(d) No effect of grain size on strength

Q4. Twin or Twinning is a category of ________

(a) Point imperfections
(b) Line imperfections
(c) Volume imperfections
(d) Surface imperfections

Q5. Which one of the following is not a zero-dimensional defect?

(a) Vacancy defect
(b) Substitution imperfection
(c) Schottky?s defect
(d) Screw dislocation

Q6. When a pair of cation and anion are missing in a crystal, it is called ____________

(a) Vacancy defect
(b) Line imperfection
(c) Schottky?s defect
(d) Frenkel defect

Q7. Displacement of an ion from regular location to interstitial location is known as ____________

(a) Vacancy defect
(b) Line imperfection
(c) Schottky?s defect
(d) Frenkel defect

Q8. Edge dislocation imperfection is a sub type of _____________

(a) Point imperfections
(b) Line imperfections
(c) Volume imperfections
(d) Surface imperfections

Q9. Substitution of a foreign atom in the site of parent atom in the crystal is a?

(a) Vacancy defect
(b) Substitution impurity
(c) Volume imperfection
(d) Vacancy defect

Q10. Vacancy defects in solids is a sub type of __________

(a) Point imperfections
(b) Line imperfections
(c) Volume imperfections
(d) Surface imperfections


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0 Answer
485 views

1° C Rise In Temperature Is Equal To A Rise Of

Modified 243 Year Ago

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485
243 Year Ago

1° C Rise In Temperature Is Equal To A Rise Of

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0 Answer
459 views

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 243 Year Ago

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459
243 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

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0 Answer
440 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 243 Year Ago

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440
243 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

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0 Answer
413 views

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 243 Year Ago

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413
243 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

0 votes
0 Answer
411 views

Molecules/ions And Their Magnetic Properties Are Given Below

Modified 243 Year Ago

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411
243 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

0 votes
0 Answer
408 views

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 243 Year Ago

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408
243 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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