Which of the following materials has the poorest electrical conductivity?

Question

Which of the following materials has the poorest electrical conductivity?

A. Carbon

C. Silver

Correct Answer :

A. Carbon

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Which of the, following is not associated with the functioning of a petrol engine?

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Titanium is produced by __________ of Ti Cl₄.

Discuss this answer

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Discuss this answer

Yield strength of a material is determined by the __________ test.

A. Creep

Discuss this answer

The following type of bonding is strongly directional in solids.

B. Ionic

Discuss this answer

Cupola produces __________ iron.

A. Pig

B. Cast

Discuss this answer

Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

Discuss this answer

The ratio of the shear stress to the principal stress on a principal plane is

A. 0

B. 1

C. 1/2

D. 1/3

Discuss this answer

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A. 5

B. 15

C. 30

D. 45

Discuss this answer

Which of the following mainly decides the current to be employed is arc welding?

Discuss this answer

During sensible cooling of air, its wet bulb temperature

Discuss this answer

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

Discuss this answer

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.

A. 15

B. 25

C. 10

D. 30

Discuss this answer

Methyl orange indicator turns

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Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

A. 10

B. 20

C. 30

D. 40

Discuss this answer

Triple point of water is

A. 0°F

B. 492°R

C. 0°K

Discuss this answer

In case of simple harmonic motion, displacement is proportional to the

Discuss this answer

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

Discuss this answer

The most important consideration in value engineering is the

Discuss this answer

Out of the following the refractive index is the highest for

A. Glass

C. Brine

Discuss this answer

Which of the following is prone to cup and cone fracture?

Discuss this answer

Dielectric

Discuss this answer

The best guide to judge the general quality of water is the measurement of its

Discuss this answer

Addition of silicon to cast iron

Discuss this answer

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

Discuss this answer

__________ is not a heat treatment process.

Discuss this answer

Titanium is added to molten aluminium alloys before casting for the purpose of

Discuss this answer

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

A. 768

B. 908

C. 1400

D. 1539

Discuss this answer

__________ the exhaust gas is an indication of the incomplete combustion of fuel.

Discuss this answer

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

Discuss this answer

Answer 1

B. Aluminium

Answer 2

D. Stainless steel

Answer 3

A. Compression ignition system

Answer 4

B. Spark plug

Answer 5

C. Carburettor

Answer 6

D. Otto cycle

Answer 7

A. Electrolytic reduction

Answer 8

B. Calcium reduction

Answer 9

C. Magnesium reduction

Answer 10

D. Thermal dissociation

Answer 11

A. Magnetic susceptibility

Answer 12

B. Magnetic moment

Answer 13

C. Permeability of free space

Answer 14

D. Flux density

Answer 15

B. Tension

Answer 16

C. Compression

Answer 17

D. Endurance

Answer 18

A. Vander Waal's

Answer 19

C. Metallic

Answer 20

D. Covalent

Answer 21

C. Wrought

Answer 22

D. Carbon free

Answer 23

D. Room temperature

Answer 24

A. Electrode size

Answer 25

B. Plate thickness

Answer 26

C. Voltage across the arc

Answer 27

D. Welded portion length

Answer 28

A. Decreases but dew point remains constant

Answer 29

B. Increases but dew point remains constant

Answer 30

C. Increases & the dew point decreases

Answer 31

D. Decreases & the dew point increases

Answer 32

A. Lancing

Answer 33

B. Shot peening

Answer 34

C. Slugging

Answer 35

D. Spinning

Answer 36

A. Orange yellow in alkaline medium

Answer 37

B. Orange yellow in acidic medium

Answer 38

C. Colourless in acidic medium

Answer 39

D. Colourless in basic medium

Answer 40

D. -273°C

Answer 41

A. Velocity

Answer 42

B. Acceleration

Answer 43

C. Both (A) & (B)

Answer 44

D. Neither (A) nor (B)

Answer 45

A. Emissivity of pipe surface

Answer 46

B. Diameter & length of the pipe

Answer 47

C. Temperature of hot pipe surface & that of air in the room

Answer 48

D. None of these

Answer 49

A. Profit maximisation

Answer 50

B. Customer satisfaction

Answer 51

C. Cost reduction

Answer 52

D. Process improvement

Answer 53

B. Diamond

Answer 54

D. Kerosene

Answer 55

A. Cast iron

Answer 56

B. Soft brass

Answer 57

C. Round specimen of ductile metal

Answer 58

D. Flat tensile specimen of ductile metal

Answer 59

A. Is an electrical insulating material

Answer 60

B. Of low resistivity is preferred

Answer 61

C. Should have high thermal conductivity

Answer 62

D. Need not defy the corrosive action of chemicals

Answer 63

A. pH value

Answer 64

B. Electrical conductivity

Answer 65

C. Turbidity

Answer 66

D. Dissolved oxygen content

Answer 67

A. Promotes graphite module formation

Answer 68

B. Improves its ductility

Answer 69

C. Does not promote graphite flakes formation

Answer 70

D. Increases the fluidity of molten metal

Answer 71

A. Dew point

Answer 72

B. Dry bulb

Answer 73

C. Wet bulb

Answer 74

D. None of these

Answer 75

A. Cyaniding

Answer 76

B. Parkerizing

Answer 77

C. Austempering

Answer 78

D. Martempering

Answer 79

A. Grain refinement

Answer 80

B. Increasing corrosion resistance

Answer 81

C. Reducing porosity

Answer 82

D. Improving fluidity

Answer 83

A. Low temperature of

Answer 84

B. High temperature of

Answer 85

C. High % of CO in

Answer 86

D. High % of CO₂ in

Answer 87

A. Full annealing

Answer 88

B. Bright annealing

Answer 89

C. Patenting

Answer 90

D. None of these

Which of the following materials has the poorest electrical conductivity?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the, following is not associated with the functioning of a petrol engine?

Titanium is produced by __________ of Ti Cl₄.

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Yield strength of a material is determined by the __________ test.

The following type of bonding is strongly directional in solids.

Cupola produces __________ iron.

Hot working of lead is carried out at

The ratio of the shear stress to the principal stress on a principal plane is

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

Which of the following mainly decides the current to be employed is arc welding?

During sensible cooling of air, its wet bulb temperature

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

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.

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Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

Triple point of water is

In case of simple harmonic motion, displacement is proportional to the

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

The most important consideration in value engineering is the

Out of the following the refractive index is the highest for

Which of the following is prone to cup and cone fracture?

Dielectric

The best guide to judge the general quality of water is the measurement of its

Addition of silicon to cast iron

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

__________ is not a heat treatment process.

Titanium is added to molten aluminium alloys before casting for the purpose of

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

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Also checkout

Which of the following materials has the poorest electrical conductivity?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the, following is not associated with the functioning of a petrol engine?

Titanium is produced by __________ of Ti Cl4.

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Yield strength of a material is determined by the __________ test.

The following type of bonding is strongly directional in solids.

Cupola produces __________ iron.

Hot working of lead is carried out at

The ratio of the shear stress to the principal stress on a principal plane is

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

Which of the following mainly decides the current to be employed is arc welding?

During sensible cooling of air, its wet bulb temperature

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

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.

Methyl orange indicator turns

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

Triple point of water is

In case of simple harmonic motion, displacement is proportional to the

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

The most important consideration in value engineering is the

Out of the following the refractive index is the highest for

Which of the following is prone to cup and cone fracture?

Dielectric

The best guide to judge the general quality of water is the measurement of its

Addition of silicon to cast iron

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

__________ is not a heat treatment process.

Titanium is added to molten aluminium alloys before casting for the purpose of

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

__________ the exhaust gas is an indication of the incomplete combustion of fuel.

The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

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Titanium is produced by __________ of Ti Cl₄.

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.