Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Question

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

A. SiO2

B. Al2O3

C. MnO2

D. P

Correct Answer :

A. SiO2

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Matte smelting is used in the extraction of

A. Lead

B. Zinc

D. Copper

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Which of the following alloying elements is present in maximum percentage in high speed steel?

Discuss this answer

Load cells used for the measurement of weight has

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The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Discuss this answer

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. 2³

B. 2^3/2

C. 2^5/2

D. 2^1/3

Discuss this answer

At absolute zero temperature, for any reaction involving condensed phases

Discuss this answer

Removal of non-condensable from steam or other vapour is termed as the __________ process.

Discuss this answer

For grinding of softer materials, the grinding wheel should have __________ grain size.

A. Finer

C. Medium

Discuss this answer

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

Discuss this answer

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

Discuss this answer

Machinability of hard alloys and tool steels is improved by

Discuss this answer

An oxidation process is accompanied with decrease in the

Discuss this answer

Which of the following heat treatment processes is usually applied to castings?

Discuss this answer

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

A. 2

B. 3

C. 0.8

D. 6

Discuss this answer

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

Discuss this answer

During sensible heating of humid air

Discuss this answer

Normalising of an object does not

Discuss this answer

Cold working of a material results in increase in hardness, which is termed as the __________ hardening.

A. Cold

B. Work

C. Age

Discuss this answer

Age hardening is connected with

Discuss this answer

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Discuss this answer

__________ of austenite decreases the hardenability in steel.

Discuss this answer

Electrometallurgy is not involved in the extraction of __________ from its ore.

B. Tin

C. Lead

Discuss this answer

Runge-Kutta method is used to solve a/an

Discuss this answer

Hooke's law

Discuss this answer

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

Discuss this answer

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

B. Copper

Discuss this answer

In connection with corrosion of metals, passivation is the process that

Discuss this answer

M10 index of coke indicates its

Discuss this answer

__________ property of steel increases by addition of large amount of silicon in it.

Discuss this answer

An abrupt and sudden fall in the reading of barometer is an indication of the

A. Storm

B. Rain

Discuss this answer

Answer 1

C. Aluminium

Answer 2

A. Molybdenum

Answer 3

B. Chromium

Answer 4

C. Tungsten

Answer 5

D. Vanadium

Answer 6

A. Compact & rugged construction with an accuracy of 0.1 to 1%

Answer 7

B. No moving parts and incurs negligible deflection under load

Answer 8

C. Provision of thermal compensation and is hermetically sealed

Answer 9

D. All 'a', 'b' & 'c'

Answer 10

A. Ambient

Answer 11

B. Dry bulb

Answer 12

C. Dew point

Answer 13

D. Wet bulb

Answer 14

A. Δ G° = 0 , Δ H° = 0

Answer 15

B. Δ H° = 0 , Δ S° = 0

Answer 16

C. Δ S° = 0 , Δ E° = 0

Answer 17

D. Δ S° = 0 , Δ Cp° = 0

Answer 18

A. Condensation

Answer 19

B. Deaeration

Answer 20

C. Scavenging

Answer 21

D. Exhaust

Answer 22

B. Coarser

Answer 23

D. Any type of

Answer 24

A. Dew point

Answer 25

B. Dry bulb

Answer 26

C. Wet bulb

Answer 27

D. None of these

Answer 28

A. Grain refinement

Answer 29

B. Increasing corrosion resistance

Answer 30

C. Reducing porosity

Answer 31

D. Improving fluidity

Answer 32

A. Spheroidising

Answer 33

B. Annealing

Answer 34

C. Tempering

Answer 35

D. Normalising

Answer 36

A. Number of electrons

Answer 37

B. Oxidation number

Answer 38

C. Number of ions

Answer 39

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

Answer 40

A. Tempering

Answer 41

B. Annealing

Answer 42

C. Normalising

Answer 43

D. Carburising

Answer 44

A. E = 2G (1 + v)

Answer 45

B. E = G (1 + v)

Answer 46

C. E = G (1 + v)/2

Answer 47

D. E = 2G (1 + 2v)

Answer 48

A. Relative humidity increases

Answer 49

B. Dew point remains constant

Answer 50

C. Dry bulb & wet bulb temperature increases

Answer 51

D. Both 'b' & 'c'

Answer 52

A. Refine coarse grain structure obtained during hot working

Answer 53

B. Improve ductility

Answer 54

C. Improve yield strength

Answer 55

D. Improve mechanical properties

Answer 56

D. Induction

Answer 57

A. Babbitt metal

Answer 58

B. Gun metal

Answer 59

C. Stainless steel

Answer 60

D. Duralumin

Answer 61

A. Air filter

Answer 62

B. Fuel injector

Answer 63

C. Exhaust silencer

Answer 64

D. Battery

Answer 65

A. Fine grains

Answer 66

B. Coarse grains

Answer 67

C. Homogeneity

Answer 68

D. Dissolved elements (except cobalt)

Answer 69

A. Aluminium

Answer 70

D. Both (B) & (C)

Answer 71

A. Ordinary differential equation of nth order

Answer 72

B. Simultaneous non-linear equation

Answer 73

C. Linear differential equation

Answer 74

D. None of these

Answer 75

A. Applies to elastic deformation

Answer 76

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

Answer 77

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

Answer 78

D. None of these

Answer 79

A. Decreases

Answer 80

B. Increases

Answer 81

C. Remain constant

Answer 82

D. Shows no systematic variation

Answer 83

A. Aluminium

Answer 84

C. Titanium

Answer 85

D. Stainless steel

Answer 86

A. Intensifies deterioration

Answer 87

B. Changes the composition of the metal

Answer 88

C. Inhibits further deterioration

Answer 89

D. None of these

Answer 90

A. Compressive strength

Answer 91

B. Hardness

Answer 92

C. Abrasion resistance

Answer 93

D. Impact strength

Answer 94

A. Mechanical

Answer 95

B. Machining

Answer 96

C. Magnetic

Answer 97

D. Refractory

Answer 98

C. Clear weather

Answer 99

D. Cold wave

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Matte smelting is used in the extraction of

Which of the following alloying elements is present in maximum percentage in high speed steel?

Load cells used for the measurement of weight has

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

At absolute zero temperature, for any reaction involving condensed phases

Removal of non-condensable from steam or other vapour is termed as the __________ process.

For grinding of softer materials, the grinding wheel should have __________ grain size.

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

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Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

During sensible heating of humid air

Normalising of an object does not

Cold working of a material results in increase in hardness, which is termed as the __________ hardening.

Age hardening is connected with

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

__________ of austenite decreases the hardenability in steel.

Electrometallurgy is not involved in the extraction of __________ from its ore.

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Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

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