There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Question

There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

A. One

B. Two

C. Three

Correct Answer :

B. Two

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A. Forge

B. Fusion

D. Arc

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D. Lead

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__________ test is the appropriate test to determine whether a material is ductile or brittle.

A. Impact

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Absolute zero pressure can be attained at a temperature of

A. 0°C

B. 50°K

C. 0°R

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Density in the solid state is slightly less than that in its liquid state, in case of

B. Water

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A. Soft

B. Hard

C. Tough

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A. 15

B. 25

C. 10

D. 30

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A. Atoms

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Minimum number of members required to form a Public Limited Joint Stock Com-pany is

A. 7

B. 10

C. 12

D. 17

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Ferromagnetic materials owe their properties to __________ inner sub-shells.

D. Vacant

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The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

A. Same

Discuss this answer

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Identify the false statement

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Force between the molecules of the same substance is called __________ force.

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Which of the following is not used as a bearing material?

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Answer 1

D. None of these

Answer 2

A. Low vapour pressure

Answer 3

B. Corrosive nature

Answer 4

C. High vapour pressure

Answer 5

D. High boiling point

Answer 6

A. Carbon and other alloying elements get oxidised from the weld pool

Answer 7

B. Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld

Answer 8

C. Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld

Answer 9

D. Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld

Answer 10

C. Resistance

Answer 11

A. Borosilicate

Answer 12

B. High silica

Answer 13

C. Supermax

Answer 14

B. Cupping

Answer 15

C. Hardness

Answer 16

D. Tensile

Answer 17

A. Supercharging

Answer 18

B. Wall temperature

Answer 19

C. Compression ratio

Answer 20

D. Engine speed

Answer 21

A. Babbitt metal

Answer 22

B. Gun metal

Answer 23

C. Stainless steel

Answer 24

D. Duralumin

Answer 25

A. S < 0.05% and P < 0.05%

Answer 26

B. S < 0.05% and P < 1.5%

Answer 27

C. S < 0.05% and P > 1.5%

Answer 28

D. S > 1.5% and P < 0.05%

Answer 29

D. None of these

Answer 30

A. Resilience

Answer 31

B. Toughness

Answer 32

C. Ductility

Answer 33

D. Impact strength

Answer 34

A. Shear stress is maximum

Answer 35

B. Velocity gradient is flat

Answer 36

C. Density variation is maximum

Answer 37

D. Shear stress is zero

Answer 38

A. Carbon dioxide

Answer 39

C. Mercury

Answer 40

D. None of these

Answer 41

D. Ductile & malleable

Answer 42

A. √(Particle diameter)

Answer 43

B. Particle diameter

Answer 44

C. (Particle diameter)²

Answer 45

D. (Particle diameter)³

Answer 46

A. Almost same for all metals

Answer 47

B. Different for different metals

Answer 48

C. Less for low melting point metals

Answer 49

D. Less for high melting point metals

Answer 50

A. Casting

Answer 51

B. Cold working

Answer 52

C. Forging

Answer 53

D. Welding

Answer 54

B. Neutrons

Answer 55

C. Nucleons

Answer 56

D. Electrons

Answer 57

A. Chimney

Answer 58

B. Induced draught fan

Answer 59

C. Forced draught fan

Answer 60

D. Steam jet arrangement

Answer 61

A. Inventory control

Answer 62

B. Production schedule

Answer 63

C. Sales forecasting

Answer 64

D. Quality control

Answer 65

A. Is at rest & has zero viscosity

Answer 66

B. Is frictionless

Answer 67

C. Fluid layer has no motion relative to an adjacent layer of fluid

Answer 68

D. is incompressible & frictionless

Answer 69

A. Completely filled

Answer 70

B. Partially filled

Answer 71

C. Equally filled

Answer 72

A. α-rays

Answer 73

B. β-rays

Answer 74

C. Gamma rays & neutrons

Answer 75

D. Electrons

Answer 76

A. Tempering

Answer 77

B. Chromising

Answer 78

C. Aluminising

Answer 79

D. Alloying

Answer 80

B. Slightly less

Answer 81

C. Slightly more

Answer 82

D. Much more

Answer 83

A. Suppress martensite transformation

Answer 84

B. Enhance its working performance in sub zero atmosphere

Answer 85

C. Reduce the retained austenite in hardened steel

Answer 86

D. Induce temper brittleness after its hardening

Answer 87

A. Martensitic steels are less susceptible to pitting corrosion than austenitic steels

Answer 88

B. Pitting corrosion is usually very localised

Answer 89

C. Hydrogen embrittlement is facilitated by tensile stress

Answer 90

D. Stress corrosion cracking is facilitated by tensile stress

Answer 91

A. Adhesive

Answer 92

B. Cohesive

Answer 93

C. Molecular

Answer 94

D. Vander Walls

Answer 95

A. Copper-lead alloys

Answer 96

B. Babbitts

Answer 97

C. Bronzes

Answer 98

D. Cermets

There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Correct Answer :

Show all Chemical Engineering Basics MCQ

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Also checkout

There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Use of water as a manometric liquid suffers from the disadvantage of its

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

Thermit welding is categorised as the __________ welding.

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

__________ test is the appropriate test to determine whether a material is ductile or brittle.

With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

Age hardening is connected with

In the acid Bessemer process, the hot metal should have the following composition.

Absolute zero pressure can be attained at a temperature of

The property of material, by which a given amount of energy is absorbed by it, without plastic deformation, is called

At the point of boundary layer separation in fluid flow, the

Density in the solid state is slightly less than that in its liquid state, in case of

Increasing sulphur content in pig iron tends to make it

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

Change in volume of metals from absolute zero temperature to their melting points is

Wrought iron is never shaped by

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

Which of the following is used to produce draught in the locomotive boilers?

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Ferromagnetic materials owe their properties to __________ inner sub-shells.

Biological shield in a nuclear reactor is generally provided to protect against the

Corrosion of metals cannot be prevented by its

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

Sub zero treatment of steel is done to

Identify the false statement

Force between the molecules of the same substance is called __________ force.

Which of the following is not used as a bearing material?

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