Pick out the wrong statement. (A) Fibrillation of fibre during paper manufacture is done to develop the strength in paper (B) Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number (C) Bagasse fibre contains both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor

Pick out the wrong statement.
(A) Fibrillation of fibre during paper manufacture is done to develop the
strength in paper
(B) Alkali consumption in digestion/cooking of bamboo is measured in terms
of permanganate number
(C) Bagasse fibre contains both lignin & cellulose
(D) Presence of sodium sulphate in pulp makes the pulp bleachability poor
by

1 Answer

Answer :

(D) Presence of sodium sulphate in pulp makes the pulp bleachability poor
by

Related questions

Pick out the wrong statement. (A) Kraft method of pulp manufacture can process all types of fibrous raw materials (B) Digestion time for bagasse is less than that for wood base materials (C) Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method (D) None of these

Description : Pick out the wrong statement. (A) Kraft method of pulp manufacture can process all types of fibrous raw materials (B) Digestion time for bagasse is less than that for wood base materials (C) Both ... in case of the sulphite method as compared to that in the sulphate method (D) None of these

Last Answer : (D) None of these

The ideal pulp for the manufacture of paper should have high __________ content. (A) Cellulose (B) Lignin (C) Both (A) & (B) (D) None of these

Description : The ideal pulp for the manufacture of paper should have high __________ content. (A) Cellulose (B) Lignin (C) Both (A) & (B) (D) None of these

Last Answer : (A) Cellulose

Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre. (A) Cutting (B) Fibrillation (C) Hydration (D) Strengthening

Description : Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre. (A) Cutting (B) Fibrillation (C) Hydration (D) Strengthening

Last Answer : (D) Strengthening

Which of the following is not present in bagasse fibre? (A) Cellulose (B) Lignin (C) Pentogens (D) None of these

Description : Which of the following is not present in bagasse fibre? (A) Cellulose (B) Lignin (C) Pentogens (D) None of these

Last Answer : (D) None of these

Which of the following is not present in bagasse fibre? (A) Cellulose (B) Lignin (C) Pentogens (D) None of these

Description : Which of the following is not present in bagasse fibre? (A) Cellulose (B) Lignin (C) Pentogens (D) None of these

Last Answer : (D) None of these

Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo? (A) Depithing (B) Digestion (C) Bleaching (D) None of these

Description : Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo? (A) Depithing (B) Digestion (C) Bleaching (D) None of these

Last Answer : (A) Depithing

Digestion of wood-base materials (for manufacture of pulp) is done to (A) Remove lignin (B) Produce long fibres (C) Prevent deterioration on storage (D) None of these

Description : Digestion of wood-base materials (for manufacture of pulp) is done to (A) Remove lignin (B) Produce long fibres (C) Prevent deterioration on storage (D) None of these

Last Answer : (A) Remove lignin

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process. (A) Mechanical (B) Sulphate/Kraft (C) Sulphite (D) Neutral sulphite semi-chemical

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Last Answer : (D) Neutral sulphite semi-chemical

Which woody raw material is used for the manufacture of paper pulp? A. Cotton B. Poplar (Answer) C. Bagasse D. Rice straw

Description : Which woody raw material is used for the manufacture of paper pulp? A. Cotton B. Poplar (Answer) C. Bagasse D. Rice straw

Last Answer : B. Poplar (Answer)

. Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent. (A) 75 (B) < 10 (C) > 30 (D) 50

Description : . Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent. (A) 75 (B) < 10 (C) > 30 (D) 50

Last Answer : (B) < 10

Main constituent of cotton fibre is (A) Lignin (B) Cellulose (C) Starch (D) Gelatine

Description : Main constituent of cotton fibre is (A) Lignin (B) Cellulose (C) Starch (D) Gelatine

Last Answer : (B) Cellulose

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to (A) Avoid mechanical weakening of fibre (B) Remove lignin by way of crystallisation (C) Increase the cellulose content (D) None of these

Description : The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to (A) Avoid mechanical weakening of fibre (B) Remove lignin by way of crystallisation (C) Increase the cellulose content (D) None of these

Last Answer : (A) Avoid mechanical weakening of fibre

During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undegraded? (a) Lipids (b) Lignin (c) Hemi-cellulose (d) Cellulose

Description : During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undegraded? (a) Lipids (b) Lignin (c) Hemi-cellulose (d) Cellulose

Last Answer : (b) Lignin

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent. (A) 10 (B) 50 (C) 80 (D) 95

Description : Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent. (A) 10 (B) 50 (C) 80 (D) 95

Last Answer : (B) 50

Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) Crimp is a measure of the difference between the length of the straightened and unstraightened fibre (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Description : Pick out the wrong statement. (A) Denier is defined as weight in gm of 9000 metres length of a fibre, while tex is defined as weight in gm of 1000 metres length of fibre (B) ... fibres are all prepared by wet spinning (D) Nylon fibres have greater water absorption capacity than polyester fibres

Last Answer : (C) Dacron fibres, acrylic fibres, viscose rayon fibres & cellulose acetate fibres are all prepared by wet spinning

In the manufacture of viscose rayon, the raw material used industrially is (A) Eucalyptus wood (B) Bamboo (C) Bagasse (D) Fine teak wood

Description : In the manufacture of viscose rayon, the raw material used industrially is (A) Eucalyptus wood (B) Bamboo (C) Bagasse (D) Fine teak wood

Last Answer : (D) Fine teak wood

In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of (A) Concrete (B) Wood (C) Steel (D) Porcelain

Description : In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of (A) Concrete (B) Wood (C) Steel (D) Porcelain

Last Answer : (C) Steel

Paper grade bamboo contains about __________ percent cellulose. (A) 5 (B) 20 (C) 40 (D) 60

Description : Paper grade bamboo contains about __________ percent cellulose. (A) 5 (B) 20 (C) 40 (D) 60

Last Answer : (A) 5

Viscose rayon (A) Cannot be made from sulphite pulp (B) Utilises H2SO4 , NaOH and CS2 during its manufacture (C) Cannot yield textile grade fibre (D) None of these

Description : Viscose rayon (A) Cannot be made from sulphite pulp (B) Utilises H2SO4 , NaOH and CS2 during its manufacture (C) Cannot yield textile grade fibre (D) None of these

Last Answer : (B) Utilises H2SO4 , NaOH and CS2 during its manufacture

The product used for manufacturing of Industrial alcohol is- (1) Khandasari (2) Bagasse (3) Molasses (4) Paper-pulp

Description : The product used for manufacturing of Industrial alcohol is- (1) Khandasari (2) Bagasse (3) Molasses (4) Paper-pulp

Last Answer : (3) Molasses Explanation: Molasses is a viscous by-product of the beating of sugarcane, grapes or sugar beets into sugar. Blackstrap molasses is a source of calcium, magnesium, potassium, and iron; ... It is used in the manufacture of ethyl alcohol for industry and as an ingredient in cattle feed.

Cellulose content in bamboo fibre is about __________ percent. (A) 10 (B) 20 (C) 50 (D) 85

Description : Cellulose content in bamboo fibre is about __________ percent. (A) 10 (B) 20 (C) 50 (D) 85

Last Answer : (C) 50

Cellulose percentage in bamboo fibre is about (A) 10 (B) 20 (C) 50 (D) 85

Description : Cellulose percentage in bamboo fibre is about (A) 10 (B) 20 (C) 50 (D) 85

Last Answer : (C) 50

Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of (A) Final rolling out of paper (B) Cutting of fibres (C) Hydration of fibres (D) Fibrillation of fibre

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Last Answer : (A) Final rolling out of paper

The major constituent of black liquor generated during paper manufacture is sodium (A) Sulphate (B) Carbonate (C) Hydroxide (D) Bi-carbonate

Description : The major constituent of black liquor generated during paper manufacture is sodium (A) Sulphate (B) Carbonate (C) Hydroxide (D) Bi-carbonate

Last Answer : (B) Carbonate

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these

Description : In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these

Last Answer : (A) Sodium sulphide & sodium carbonate

Pick out the wrong statement. (A) Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal (B) Ammonia is recovered in the form of ammonium sulphate in direct process of by-product recovery (C) A high swelling index number of coking coal indicates poor caking properties of coal (D) Wash oil is used for scrubbing Benzol from coke oven gas

Description : Pick out the wrong statement. (A) Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal (B) Ammonia is recovered in the form of ammonium sulphate in direct ... indicates poor caking properties of coal (D) Wash oil is used for scrubbing Benzol from coke oven gas

Last Answer : (C) A high swelling index number of coking coal indicates poor caking properties of coal

In sulphate pulp manufacture, the pressure and temperature in the digestor is (A) 10 atm., 800 °C (B) 10 atm., 170-180°C (C) 1 atm., 170 - 180°C (D) 1 atm., 800°C

Description : In sulphate pulp manufacture, the pressure and temperature in the digestor is (A) 10 atm., 800 °C (B) 10 atm., 170-180°C (C) 1 atm., 170 - 180°C (D) 1 atm., 800°C

Last Answer : (B) 10 atm., 170-180°C

Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide (C) Ordinary glass is represented chemically by Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

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Last Answer : (D) Red color is imparted to glass by addition of arsenic oxide

Pick out the wrong statement: (A) Greater is the kinematic viscosity of the liquid, greater is the thickness of the boundary layer (B) Blowers develop a maximum pressure of 2 atmospheres (C) Friction losses in pipe fittings are generally expressed in terms of velocity heads (D) Fanning friction factor in case of turbulent flow of liquids in pipe depends upon relative roughness & Reynolds number

Description : Pick out the wrong statement: (A) Greater is the kinematic viscosity of the liquid, greater is the thickness of the boundary layer (B) Blowers develop a maximum pressure of 2 atmospheres ( ... factor in case of turbulent flow of liquids in pipe depends upon relative roughness & Reynolds number

Last Answer : (C) Friction losses in pipe fittings are generally expressed in terms of velocity heads

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood. (A) 1 (B) 2.5 (C) 5 (D) 10

Description : Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood. (A) 1 (B) 2.5 (C) 5 (D) 10

Last Answer : (B) 2.5

Pick out the wrong statemen(A) Autocatalytic reactions are exemplified by microbial fermentation reactions (B) The slowest step has the greatest influence on the overall reaction rate in case of an irreversible series reaction (C) The fractional conversion at any time is same for both the constant as well as the variable volume system in case of an irreversible unimolecular type first order reaction (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Description : Pick out the wrong statemen (A) Autocatalytic reactions are exemplified by microbial fermentation reactions (B) The slowest step has the greatest influence on the overall reaction rate in case of an ... reaction (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Last Answer : (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

The synthetic fibres produced from __________ are known as rayon. (A) Lignin (B) Cellulose (C) Polyamides (D) Ethylene glyco

Description : The synthetic fibres produced from __________ are known as rayon. (A) Lignin (B) Cellulose (C) Polyamides (D) Ethylene glyco

Last Answer : (B) Cellulose

Main constituents of cotton fiber is (A) Lignin (B) Cellulose (C) Starch (D) Gelatine

Description : Main constituents of cotton fiber is (A) Lignin (B) Cellulose (C) Starch (D) Gelatine

Last Answer : (B) Cellulose

Paper pulp produced by Kraft/sulphate process is (A) Bleached easily (B) Dull white in color (C) Strong fibrous (D) Dark colored

Description : Paper pulp produced by Kraft/sulphate process is (A) Bleached easily (B) Dull white in color (C) Strong fibrous (D) Dark colored

Last Answer : (C) Strong fibrous

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (a) cuticle (b) sporopollenin (c) lignin (d) cellulose.

Description : An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (a) cuticle (b) sporopollenin (c) lignin (d) cellulose.

Last Answer : (b) sporopollenin

55. An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (1) Cellulose (2) Cuticle (3) Sporopollenin (4) Lignin

Description : 55. An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is (1) Cellulose (2) Cuticle (3) Sporopollenin (4) Lignin

Last Answer : Lignin

Thickness and toughness of plant walls are increased by deposition within the original cellulose wall, of a substance known as lignin. The process of deposition is called: a) Sclerenchymacia b) Lignification c) Scleridia

Description : Thickness and toughness of plant walls are increased by deposition within the original cellulose wall, of a substance known as lignin. The process of deposition is called: a) Sclerenchymacia b) Lignification c) Scleridia

Last Answer : ANSWER: B -- LIGNIFICATION

Molasses a by-product in the manufacture of sugar, is converted into (1) alcohol (2) paper (3) fuel (4) pulp

Description : Molasses a by-product in the manufacture of sugar, is converted into (1) alcohol (2) paper (3) fuel (4) pulp

Last Answer : alcohol

The manufacture of Kraft pulp is done by a/an __________ process.(A) Alkaline (B) Acidic (C) Neutral (D) None of these

Description : The manufacture of Kraft pulp is done by a/an __________ process. (A) Alkaline (B) Acidic (C) Neutral (D) None of these

Last Answer : (A) Alkaline

Pick out the wrong statement. (A) 'Green acid' is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid (B) Chemically unreactive nature of red phosphorous is due to its polymeric structure (C) Red phosphorous is the most reactive allotropic form of phosphorous (D) Red phosphorous, which is used in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation

Description : Pick out the wrong statement. (A) 'Green acid' is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid (B) Chemically unreactive nature of ... in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation

Last Answer : (C) Red phosphorous is the most reactive allotropic form of phosphorous

The following action of digoxin is responsible for beneficial effect in auricular fibrillation: A. Increased myocardial contractility B. Suppression of SA node C. Depression of A-V conduction D. Enhanced Purkinje fibre automaticity

Description : The following action of digoxin is responsible for beneficial effect in auricular fibrillation: A. Increased myocardial contractility B. Suppression of SA node C. Depression of A-V conduction D. Enhanced Purkinje fibre automaticity

Last Answer : C. Depression of A-V conduction

Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in __________ of the catalyst. (A) Stabilisation (B) Increasing the effectiveness (C) Improving the strength & heat resistance (D) All a, b & c

Description : Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ... B) Increasing the effectiveness (C) Improving the strength & heat resistance (D) All a, b & c

Last Answer : (D) All a, b & c

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.). (A) 1 (B) 10 (C) 25 (D) 40

Description : A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.). (A) 1 (B) 10 (C) 25 (D) 40

Last Answer : (B) 10

In the Kraft (sulphate) process for the paper manufacture, the digestor is made of (A) Cast iron (B) Stainless steel (C) Karbate carbon (D) Wrought iron

Description : In the Kraft (sulphate) process for the paper manufacture, the digestor is made of (A) Cast iron (B) Stainless steel (C) Karbate carbon (D) Wrought iron

Last Answer : (B) Stainless steel

Addition of stabiliser during PVC manufacture is done to (A) Improve its impact strength (B) Improve its elasticity (C) Reduce the melt viscosity & glass transition temperature (D) Prevent its thermal degradation

Description : Addition of stabiliser during PVC manufacture is done to (A) Improve its impact strength (B) Improve its elasticity (C) Reduce the melt viscosity & glass transition temperature (D) Prevent its thermal degradation

Last Answer : (D) Prevent its thermal degradation

Pick out the wrong statement. (A) Cellulose acetate membranes are used in dialysis process (B) Elutriation process refers to when the soluble material is largely concentrated on the surface of an insoluble solid and is simply washed off by the solvent (C) 'Cascade' means a group of stages interconnected so that various streamflow from one to another(D) Zirconia probe is used for the humidity measurement

Description : Pick out the wrong statement. (A) Cellulose acetate membranes are used in dialysis process (B) Elutriation process refers to when the soluble material is largely concentrated on the surface of an ... that various streamflow from one to another (D) Zirconia probe is used for the humidity measurement

Last Answer : (D) Zirconia probe is used for the humidity measurement

Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Description : Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Last Answer : (A) Sodium sulphite and sodium bisulphite

Pick out the false statement pertaining to water treatment(A) Aeration of water is effective in CO2removal(B) The zeolite water softening process reduces the hardness of water by notmore than 50%(C) Sodium sulphate or sodium carbonate do not cause hardness in water(D) Water with pH value less than 7, is acidic.

Description : Pick out the false statement pertaining to water treatment. (A) Aeration of water is effective in CO2 removal (B) The zeolite water softening process reduces the hardness of water by not more than 50% (C ... carbonate do not cause hardness in water (D) Water with pH value less than 7, is acidic

Last Answer : (B) The zeolite water softening process reduces the hardness of water by not more than 50%

Pick out the wrong statement pertaining to the soap manufacture. (A) Transparent soaps are made by cold process (B) Organic pigments are used as colouring materials in the soap manufacture (C) Both laundry as well as toilet soaps are manufactured by hot process (D) Colourless rosin is used in the manufacture of laundry soaps

Description : Pick out the wrong statement pertaining to the soap manufacture. (A) Transparent soaps are made by cold process (B) Organic pigments are used as colouring materials in the soap manufacture (C) ... soaps are manufactured by hot process (D) Colourless rosin is used in the manufacture of laundry soaps

Last Answer : (A) Transparent soaps are made by cold process

Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film (c) the silver bromide present on the plate is very sensitive to light and black paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Description : Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film ... paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential

Last Answer : Ans:(c)