Which of the following impurities in feed water for high pressure boiler is the most detrimental?

Question

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

A. Silica

Correct Answer :

A. Silica

Share this question with your friends

Show all Chemical Process MCQ

Comment

Fourdrinier machine is used in the manufacture of

A. Sugar

B. Paper

Discuss this answer

Hydrazine is used in water treatment for the removal of

Discuss this answer

Shrinkage volume in cement setting does not depend upon the

Discuss this answer

Catalyst used during the manufacture of 'Vanaspati Ghee' is

A. Zinc

B. Nickel

D. Copper

Discuss this answer

Molasses is the starting material for the production of

Discuss this answer

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

C. H₂

Discuss this answer

Rotary kiln is not involved in the production of

A. Cement

Discuss this answer

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

Discuss this answer

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Discuss this answer

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Discuss this answer

Litharge is

Discuss this answer

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

B. Tannin

Discuss this answer

Pasteurisation of milk means

Discuss this answer

Nylon-66 is so named because the

Discuss this answer

Catalytic oxidation of toluene produces

B. Phenol

Discuss this answer

Penicillin is made employing __________ fermentation process.

Discuss this answer

Pure rectified spirit contains about __________ percent alcohol.

A. 45

B. 70

C. 95

D. 99.5

Discuss this answer

The major use of butadiene is

Discuss this answer

Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

Discuss this answer

Pick out the wrong statement.

Discuss this answer

Rancidity of the fatty oil can be reduced by its

Discuss this answer

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Discuss this answer

Mannheim furnace is used in the manufacture of

Discuss this answer

Caprolactam (a raw material for nylon-6 manufacture) is produced from

A. Phenol

Discuss this answer

Concentration of sulphide ores is done usually by

Discuss this answer

Catalytic oxidation of naphthalene produces

B. Phenol

Discuss this answer

Nitric acid is not used in the manufacture of

Discuss this answer

Solvay process as compared to dual process
(i.e. modified Solvay process).

Discuss this answer

__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

Discuss this answer

Heating of __________ to 120°C, produces plaster of paris.

B. Gypsum

Discuss this answer

Answer 1

B. Dissolved oxygen

Answer 2

C. Suspended salt

Answer 3

D. Dissolved salt

Answer 4

C. Alcohol from molasses

Answer 5

D. Phenol formaldehyde

Answer 6

A. Colloidal impurities

Answer 7

B. Dissolved oxygen

Answer 8

C. Turbidity

Answer 9

D. Chlorinous taste

Answer 10

A. Sand to cement ratio

Answer 11

B. Water to cement ratio

Answer 12

C. Ambient temperature fluctuation

Answer 13

D. Drying period

Answer 14

C. Platinum

Answer 15

A. Alcohol

Answer 16

B. Essential oil

Answer 17

C. Fatty acids

Answer 18

D. Massecuite

Answer 19

A. Na₂CO₃

Answer 20

B. NaHCO₃

Answer 21

D. None of these

Answer 22

B. Lime from limestone

Answer 23

C. Slaked lime from quick lime

Answer 24

D. None of these

Answer 25

A. Pyrolysis of oil

Answer 26

B. Sintering of porous catalyst

Answer 27

C. Hydrogen embrittlement

Answer 28

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

Answer 29

A. V₂O₅ & Cr₂O₃.

Answer 30

B. Oxides of nitrogen & Cr₂O₃

Answer 31

C. V₂O₅ on a porous carrier & oxides of nitrogen

Answer 32

D. Oxides of nitrogen & V₂O₅ on a porous carrier

Answer 33

A. 7-14 and 14-30

Answer 34

B. 7-14 and 40-50

Answer 35

C. 14 - 30 and 40-50

Answer 36

D. 10 - 20 and 40 - 50

Answer 37

A. Lead oxide

Answer 38

B. Zinc oxide

Answer 39

C. Zinc sulphide

Answer 40

D. Cellulosic photographic material

Answer 41

A. Collagen

Answer 42

C. Molasses

Answer 43

D. Carbohydrate

Answer 44

A. Removal of fatty and albuminous substance from it

Answer 45

B. Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics

Answer 46

C. Inhibiting the growth of micro-organisms without killing them

Answer 47

D. None of these

Answer 48

A. Average degree of polymerisation of the polymer is 1966

Answer 49

B. Number of carbon atoms between two nitrogen atoms are 6

Answer 50

C. Number of nitrogen atoms between two carbon atoms are 6

Answer 51

D. Polymer was first synthesised in 1966

Answer 52

A. Styrene

Answer 53

C. Benzene

Answer 54

D. Tri-nitro-toluene

Answer 55

A. Continuous

Answer 56

B. Aerobic batch

Answer 57

C. Anaerobic batch

Answer 58

D. None of these

Answer 59

A. As a plasticiser for unsaturated polyester

Answer 60

B. In the manufacture of synthetic rubber

Answer 61

C. As an anti-skinning agent in paint

Answer 62

D. None of these

Answer 63

A. Strongly caking coal should not be used in the Lurgi gasifier

Answer 64

B. Acetylene gas cannot be used for illumination purpose

Answer 65

C. Water gas is called blue gas because of the color of the flame, when it is burnt

Answer 66

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

Answer 67

A. Decoloration

Answer 68

B. Hydrogenation

Answer 69

C. Oxidation

Answer 70

D. Purification

Answer 71

A. 1 atm & 100°C

Answer 72

B. 5 atm & 275°C

Answer 73

C. 100 atm & 500°C

Answer 74

D. 50 atm & 1000°C

Answer 75

A. Hydrochloric acid

Answer 76

B. H₂SO₄ by Chamber process

Answer 77

C. Calcium carbide

Answer 78

D. Corundum

Answer 79

B. Naphthalene

Answer 80

C. Benzene

Answer 81

D. Pyridine

Answer 82

A. Roasting

Answer 83

B. Smelting

Answer 84

C. Froth floatation

Answer 85

D. Electromagnetic separation

Answer 86

A. Styrene

Answer 87

C. Phthalic anhydride

Answer 88

D. None of these

Answer 89

A. Detergents

Answer 90

B. Fertilisers

Answer 91

C. Aqua regia

Answer 92

D. Explosives

Answer 93

A. Can use low grade brine

Answer 94

B. Has less corrosion problems

Answer 95

C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl

Answer 96

D. Both (B) and (C)

Answer 97

D. Crooke's

Answer 98

A. Blue vitriol

Answer 99

C. Calcium silicate

Answer 100

D. Calcium sulphate

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Fourdrinier machine is used in the manufacture of

Hydrazine is used in water treatment for the removal of

Shrinkage volume in cement setting does not depend upon the

Catalyst used during the manufacture of 'Vanaspati Ghee' is

Molasses is the starting material for the production of

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

Rotary kiln is not involved in the production of

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Litharge is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

Pasteurisation of milk means

Nylon-66 is so named because the

Catalytic oxidation of toluene produces

Penicillin is made employing __________ fermentation process.

Pure rectified spirit contains about __________ percent alcohol.

The major use of butadiene is

Cellulose percentage in bamboo fibre is about

Pick out the wrong statement.

Rancidity of the fatty oil can be reduced by its

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Mannheim furnace is used in the manufacture of

Caprolactam (a raw material for nylon-6 manufacture) is produced from

Concentration of sulphide ores is done usually by

Catalytic oxidation of naphthalene produces

Nitric acid is not used in the manufacture of

Solvay process as compared to dual process
(i.e. modified Solvay process).

__________ glass is used for the manufacture of optical glass.

Heating of __________ to 120°C, produces plaster of paris.

Also checkout

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Fourdrinier machine is used in the manufacture of

Hydrazine is used in water treatment for the removal of

Shrinkage volume in cement setting does not depend upon the

Catalyst used during the manufacture of 'Vanaspati Ghee' is

Molasses is the starting material for the production of

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

Rotary kiln is not involved in the production of

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Litharge is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

Pasteurisation of milk means

Nylon-66 is so named because the

Catalytic oxidation of toluene produces

Penicillin is made employing __________ fermentation process.

Pure rectified spirit contains about __________ percent alcohol.

The major use of butadiene is

Cellulose percentage in bamboo fibre is about

Pick out the wrong statement.

Rancidity of the fatty oil can be reduced by its

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Mannheim furnace is used in the manufacture of

Caprolactam (a raw material for nylon-6 manufacture) is produced from

Concentration of sulphide ores is done usually by

Catalytic oxidation of naphthalene produces

Nitric acid is not used in the manufacture of

Solvay process as compared to dual process(i.e. modified Solvay process).

__________ glass is used for the manufacture of optical glass.

Heating of __________ to 120°C, produces plaster of paris.

Also checkout

Solvay process as compared to dual process
(i.e. modified Solvay process).