The value of for air & most common gases can be safely assumed to be

Question

The value of for air & most common gases can be safely assumed to be

A. 0.8

B. 1

C. 1.4

D. 1.8

Correct Answer :

C. 1.4

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The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

A. 0

B. 100

C. 50

Discuss this answer

Steel is welded using the __________ flame.

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Which of the following has the least value of ultimate tensile strength (UTS)?

Discuss this answer

Photographic plates are coated with

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

A. Creep

Discuss this answer

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

C. Nickel

Discuss this answer

Dowtherm is a

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__________ has a negative co-efficient of linear expansion.

A. Iron

B. Copper

C. Rubber

D. Nickel

Discuss this answer

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Discuss this answer

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

Discuss this answer

'Cryogenics' is concerned with the generation & use of low temperature in the range of

Discuss this answer

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

A. 0

B. 0.33

C. 0.44

D. 0.25

Discuss this answer

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

A. Joule

B. Carnot

Discuss this answer

__________ joint is mostly used for joining pipes carrying water at low pressure.

A. Nipple

B. Socket

C. Union

Discuss this answer

__________ is not used as a material of construction in thermocouples.

A. Alumel

Discuss this answer

For preparation of porous bearings by powder metallurgy, preferred particle shape is

Discuss this answer

Powder metallurgy process does not make metal powder by

Discuss this answer

Pick out the wrong statement.

Discuss this answer

The most abundant metal present in the earth's crust is;

A. Iron

B. Copper

Discuss this answer

Damage to metal surface by mechanical action is called

Discuss this answer

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

Discuss this answer

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Discuss this answer

When the wavelength of incident X-rays increases, the angle of diffraction

Discuss this answer

Secondary hardening in steels arises out of the

Discuss this answer

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

Discuss this answer

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A. Steel

C. Copper

Discuss this answer

At absolute zero temperature, for any reaction involving condensed phases

Discuss this answer

Electrochemical corrosion can occur, only if __________ is present in contact with metal.

A. Air

B. Oxygen

Discuss this answer

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

A. 2

B. 8

C. 10

D. 40

Discuss this answer

Materials having __________ lattice structure are usually the most ductile.

Discuss this answer

Answer 1

D. None of these

Answer 2

A. Carburising

Answer 3

B. Neutral

Answer 4

C. Oxidising

Answer 5

D. All (A), (B) & (C)

Answer 6

A. Medium carbon steel

Answer 7

B. High carbon steel

Answer 8

C. Cast iron

Answer 9

D. Wrought iron

Answer 10

A. Silver nitrate

Answer 11

B. Silver halide

Answer 12

C. Calcium silicate

Answer 13

D. Metallic silver

Answer 14

B. Tension

Answer 15

C. Compression

Answer 16

D. Endurance

Answer 17

A. Manganese

Answer 18

B. Silicon

Answer 19

D. Chromium

Answer 20

A. High temperature heating medium (a petroleum product)

Answer 21

B. Product of coal tar distillation

Answer 22

C. Very heat sensitive material

Answer 23

D. None of these

Answer 24

A. Manganese

Answer 25

B. Phosphorous

Answer 26

C. Magnesium

Answer 27

D. Chromium

Answer 28

A. Low impact strength

Answer 29

B. High flexibility

Answer 30

C. Better finish and surface appearance

Answer 31

D. High plastic deformation

Answer 32

A. 0°K to 123°K

Answer 33

B. 0°C to - 123°C

Answer 34

C. 0°C to - 273°C

Answer 35

D. 0°K to 273°K

Answer 36

C. Rankine

Answer 37

D. Brayton

Answer 38

D. Bell and spigot

Answer 39

B. Rhodium

Answer 40

C. Constantan

Answer 41

D. Duralumin

Answer 42

A. Spherical

Answer 43

B. Nodular

Answer 44

C. Irregular

Answer 45

D. No preferred shape

Answer 46

A. Atomisation

Answer 47

B. Grinding/milling

Answer 48

C. Hammering

Answer 49

D. Electrolytic deposition

Answer 50

A. Cold cracking of a weld is due to the presence of hydrogen gas in the weld

Answer 51

B. True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively

Answer 52

C. Phosphorous can be easily recovered in the iron blast furnace

Answer 53

D. High residual stress at the surface is beneficial for fatigue properties of a material

Answer 54

C. Titanium

Answer 55

D. Aluminium

Answer 56

A. Pitting

Answer 57

B. Corrosion

Answer 58

C. Erosion

Answer 59

D. None of these

Answer 60

A. Resilience

Answer 61

B. Toughness

Answer 62

C. Ductility

Answer 63

D. Impact strength

Answer 64

A. Vickers hardness test

Answer 65

B. Shore scleroscope test

Answer 66

C. Brinell hardness test

Answer 67

D. Rockwell hardness test

Answer 68

A. Decreases

Answer 69

B. Increases

Answer 70

C. Remain constant

Answer 71

D. Shows no systematic variation

Answer 72

A. Precipitation of fine alloy carbides at high temperatures

Answer 73

B. Refinement of ferrite grain size by working

Answer 74

C. Decomposition of retained austenite upon heat treatment

Answer 75

D. Precipitation of complex inter-metallic upon heat treatment

Answer 76

A. Elaiden test

Answer 77

B. Reichert-Meissl value test

Answer 78

C. Hunter value test

Answer 79

D. Iodine value test

Answer 80

B. Glass wood

Answer 81

D. Fireclay bricks

Answer 82

A. Δ G° = 0 , Δ H° = 0

Answer 83

B. Δ H° = 0 , Δ S° = 0

Answer 84

C. Δ S° = 0 , Δ E° = 0

Answer 85

D. Δ S° = 0 , Δ Cp° = 0

Answer 86

C. Liquid medium

Answer 87

D. Gaseous medium

Answer 88

A. Body centred cubic (bcc)

Answer 89

B. Hexagonal close packed (hcp)

Answer 90

C. Face centred cubic (fcc)

Answer 91

D. None of these

The value of for air & most common gases can be safely assumed to be

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

Steel is welded using the __________ flame.

Which of the following has the least value of ultimate tensile strength (UTS)?

Photographic plates are coated with

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

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Dowtherm is a

__________ has a negative co-efficient of linear expansion.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

'Cryogenics' is concerned with the generation & use of low temperature in the range of

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

__________ joint is mostly used for joining pipes carrying water at low pressure.

__________ is not used as a material of construction in thermocouples.

For preparation of porous bearings by powder metallurgy, preferred particle shape is

Powder metallurgy process does not make metal powder by

Pick out the wrong statement.

The most abundant metal present in the earth's crust is;

Damage to metal surface by mechanical action is called

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

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

When the wavelength of incident X-rays increases, the angle of diffraction

Secondary hardening in steels arises out of the

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

At absolute zero temperature, for any reaction involving condensed phases

Electrochemical corrosion can occur, only if __________ is present in contact with metal.

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

Materials having __________ lattice structure are usually the most ductile.

Also checkout

The value of for air & most common gases can be safely assumed to be

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

Steel is welded using the __________ flame.

Which of the following has the least value of ultimate tensile strength (UTS)?

Photographic plates are coated with

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

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Dowtherm is a

__________ has a negative co-efficient of linear expansion.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

'Cryogenics' is concerned with the generation & use of low temperature in the range of

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

__________ joint is mostly used for joining pipes carrying water at low pressure.

__________ is not used as a material of construction in thermocouples.

For preparation of porous bearings by powder metallurgy, preferred particle shape is

Powder metallurgy process does not make metal powder by

Pick out the wrong statement.

The most abundant metal present in the earth's crust is;

Damage to metal surface by mechanical action is called

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

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

When the wavelength of incident X-rays increases, the angle of diffraction

Secondary hardening in steels arises out of the

Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying oils?

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

At absolute zero temperature, for any reaction involving condensed phases

Electrochemical corrosion can occur, only if __________ is present in contact with metal.

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.

Materials having __________ lattice structure are usually the most ductile.

Also checkout

What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m². °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively.