A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

Question

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

A. -0.8

B. 0.8

C. +0.08

D. -0.24

Correct Answer :

D. -0.24

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B. Water

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B. SiO2

C. MgO

D. MnO2

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A. Grey

B. Black

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D. White

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B. Glass

C. Ice

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A. Carbon

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A. PCl₅

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A. 8.82

B. 9.81

C. 10.88

D. 0.95

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B. N₂O

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Hooke's law

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D. Sinter

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The majority charge carriers in p-type silicon are

B. Ions

D. Holes

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__________ metal is used as a bearing liner material.

A. Pewter

B. White

D. Gun

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Answer 1

A. 3171P_a

Answer 2

B. 3567P_a

Answer 3

C. 1.01 × 10⁵P_a

Answer 4

D. 5000P_a

Answer 5

A. Fracture strength

Answer 6

B. Yield strength

Answer 7

C. Elastic limit

Answer 8

D. Limit of proportionality

Answer 9

A. (r₂ - r₁)/r₁. r₂

Answer 10

B. r₁. r₂/(r₂- r₁)

Answer 11

C. (r₂ + r₁)/r₁. r₂

Answer 12

D. r₁. r₂/(r₂ + r₁)

Answer 13

A. Iron ore & coke

Answer 14

B. Iron ore, coke & air

Answer 15

C. Limestone, coke & iron ore

Answer 16

D. Limestone, sand & iron ore

Answer 17

A. Motion of dislocations

Answer 18

B. Stretching of atomic bonds

Answer 19

C. Breakage of atomic bonds

Answer 20

D. None of the above

Answer 21

D. None of these

Answer 22

D. -273°C

Answer 23

A. Kerosene

Answer 24

C. Sodium stearate

Answer 25

D. Lime water

Answer 26

A. Kudremukh

Answer 27

D. Ramagundam

Answer 28

A. Plastic deformation of material does not occur

Answer 29

B. Initiation of crack from below the surface does not occur

Answer 30

C. Initiation of crack occurs on the surface of the machine part

Answer 31

D. Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface

Answer 32

A. Neutral

Answer 33

D. Zero pH

Answer 34

A. Deviation

Answer 35

B. Derivative time

Answer 36

C. Error ratio

Answer 37

D. Differential gap

Answer 38

A. Linear displacement

Answer 39

B. Concavity/convexity

Answer 40

C. Surface texture

Answer 41

D. Flatness

Answer 42

A. Independent of

Answer 43

B. Inversely proportional to

Answer 44

C. Directly proportional to

Answer 45

D. None of these

Answer 46

A. Lack of free

Answer 47

B. Excess of

Answer 48

C. Decrease in

Answer 49

D. None of these

Answer 50

D. Pig iron

Answer 51

A. Thermosetting polymers

Answer 52

B. High carbon steels

Answer 53

C. Brasses

Answer 54

D. Borosilicate glasses

Answer 55

B. Manganese

Answer 56

C. Both 'a' nor 'b'

Answer 57

D. Neither 'a' nor 'b'

Answer 58

A. Blow down valve

Answer 59

B. Blow off cock

Answer 60

C. Fusible plug

Answer 61

D. Safety valve

Answer 62

A. Normalising

Answer 63

B. Tempering

Answer 64

C. Annealing

Answer 65

D. Carburising

Answer 66

B. Quick lime

Answer 67

C. CaCl₂

Answer 68

D. Concentrated H₂SO₄

Answer 69

A. N₂O₄

Answer 70

C. N₂O₅

Answer 71

D. N₂O₃

Answer 72

A. Applies to elastic deformation

Answer 73

B. Applies beyond limit of proportionality in stress-strain curve

Answer 74

C. States that stress is inversely proportional to strain upto elastic limit

Answer 75

D. None of these

Answer 76

B. Pellets

Answer 77

C. Briquettes

Answer 78

A. Decarburising

Answer 79

B. Alloying with cobalt

Answer 80

C. Purification

Answer 81

D. Alternate heating & cooling

Answer 82

A. Free electrons

Answer 83

C. Conduction electrons

Answer 84

C. Babbitt

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

Correct Answer :

Show all Chemical Engineering Basics MCQ

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A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

Correct Answer :

Show all Chemical Engineering Basics MCQ

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