Description : 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
Last Answer : (D) Neutral sulphite semi-chemical
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
Description : Which is a high grade pulp? (A) Rag pulp (B) Mechanical pulp (C) Sulphate pulp (D) Sulphite pulp
Last Answer : (C) Sulphate pulp
Description : __________ paper is used in the manufacture of newsprint paper. (A) Ground-wood (B) Board (C) Tissue (D) Wrapping
Last Answer : (A) Ground-wood
Description : Comparing sulphate process with sulphite process, we find that __________ in the later. (A) Both temperature & pressure in the former is less than that (B) Both temperature & pressure in the former ... the former whereas pressure is more (D) Pressure is more in the former whereas temperature is less
Last Answer : (B) Both temperature & pressure in the former is more than that
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
Description : Bleaching of paper pulp is done with (A) Activated clay (B) Bromine (C) Chlorine or chlorine dioxide (D) Magnesium sulphite
Last Answer : (C) Chlorine or chlorine dioxide
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
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
Description : Doctor's solution used for sweetening of petroleum products is (A) Sodium plumbite (B) Sodium sulphite (C) Sodium thiosulphate (D) Lead sulphate
Last Answer : (A) Sodium plumbite
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
Description : Activity of cytochrome oxidase is inhibited by (A) Sulphite (B) Sulphate (C) Arsenite (D) Cyanide
Last Answer : Answer : D
Description : 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 ... both lignin & cellulose (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor
Last Answer : (D) Presence of sodium sulphate in pulp makes the pulp bleachability poor
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
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
Description : Chemical name of Grignard reagent is (A) Sodium thiosulphate (B) Ethyl magnesium chloride (C) Sodium sulphite (D) Sodium bicarbonate
Last Answer : (B) Ethyl magnesium chloride
Description : The most commonly used chemical for de-chlorination of water, is (A) Sodium thiosulphate (B) Sodium bisulphate (C) Sodium sulphite (D) Sulphur-dioxide
Last Answer : (C) Sodium sulphite
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
Description : The largest producer of wood pulp is (a) India (b) Canada (c) Russia (d) USA
Last Answer : Ans: (d)
Description : Wood pulp comes from which region?
Last Answer : Coniferous forest region
Description : In closed circuit grinding as compared to open circuit grinding, the (A) Specific surface of product is more (B) Product has lesser size uniformity (C) Production rate at a given limiting size is lower (D) Operation is economical
Last Answer : (D) Operation is economical
Description : Auger boring (A) Is the most primitive method for making a hole in the ground (B) Is generally employed in cohesive and other self soils above water table (C) Is most economical upto a depth of 5 metres (D) All the above
Last Answer : Answer: Option D
Description : Rotary drilling (A) Is not suitable for deposits containing very coarse gravel (B) Hinders the ground water observations and permeability test (C) Is not economical for holes of less than 10 cm (D) All the above
Description : Corrosion in boilers can be prevented by (A) Deaeration of feed water (B) Enhancing pH of feed water by adding alkali (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Ethyl alcohol cannot be produced (A) From waste sulphite substrate of paper mills (B) By Esterification and hydrolysis of ethylene (C) From molasses (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
Description : Which type of forest belt supplies most of the world’s requirement of newsprint? -General Knowledge
Last Answer : The answer is 'Coniferous forest'
Last Answer : answer:
Description : Match the following: Public Sector Undertaking Location A. Fertilizer Corporation of India 1. Pimpri B. Hindustan Antibiotics Ltd. 2. Sindri C. Indian Rare Earth's Ltd. 3. Nepanagar D. National Newsprint Ltd. 4. Alwaye A B C D (a) 2 1 4 3 (b) 1 2 3 4 (c) 4 3 2 1 (d) 3 1 2 4
Last Answer : Ans: (a)
Description : Match the following: Places Industries A. Nepanagar 1. HMT factory B. Rishikesh 2. Oil Refinery C. Barauni 3. Newsprint D. Pinjore 4. Antibiotic factory A B C D (a) 1 2 3 4 (b) 3 4 2 1 (c) 2 3 1 4 (d) 4 1 2 3
Last Answer : Ans: (b)
Description : Match the following: Public Sector Undertaking Location A. Fertilizer Corporation of India 1. Pimpri B. Hindustan Antibiotics Ltd. 2. Sindri C. Indian Rare Earths Ltd. 3. Nepanagar D. National Newsprint Ltd. 4. Alwaye A B C D (a) 2 1 4 3 (b) 1 2 3 4 (c) 4 3 2 1 (d) 3 1 2 4
Description : Nepanagar in Madhya Pradesh has a – (1) sugar mill (2) newsprint factory (3) steel plant (4) heavy engineering plant
Last Answer : (2) newsprint factory Explanation: Nepanagar is a industrial township in Burhanpur district in the Indian state of Madhya Pradesh. Nepanagar is famous for its newspaper paper mill, Nepa Mills Limited.
Description : World's maximum newsprint comes from – (1) Deciduous forest (2) Monsoon forest (3) Mangrove forest (4) Rainfed forest
Last Answer : (1) Deciduous forest Explanation: Newspapers are made from a type of paper called newsprint. Coniferous softwoods such as spruce, pine, and cedar provide long (average 3mm), strong fibres. ... , while some are a mix of conifers and broadleaf evergreen trees and/or broadleaf deciduous trees.
Description : Which type of forest belt supplies most of the world’s requirement of newsprint?
Last Answer : Coniferous forest
Description : What is the full form of RNI? a) Regional Newspaper of India b) Regional Newsprint of India c) Regional News and views of India d) Registrar of Newspaper of India
Last Answer : d) Registrar of Newspaper of India
Description : The primary producer of newsprint in the world is
Last Answer : Canada
Description : Through marketing newsprint to newspaper publishers and glass manufacturers that use it in packaging, Consolidated Bathurst segments its market based on: A)customer size B)psychographics C)demographics D)use of product E)geographic location
Last Answer : D)use of product
Description : Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. (A) 250 (B) 650 (C) 850 (D) 1000
Last Answer : (B) 650
Description : The expanded production of fertilizers, textiles & buildings require some A. power production B. domestic production of the necessary capital goods C. economical growth D. none of these
Last Answer : B. domestic production of the necessary capital goods
Description : Paper pulp is an example of __________ fluid. (A) Dilatant (B) Bingham plastic (C) Newtonian (D) Pseudo-plastic
Last Answer : (B) Bingham plastic
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
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
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
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
Description : Air can oxidize sodium sulphite in eq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containi
Last Answer : Air can oxidize sodium sulphite in eq. solution but cannot do so in the case of sodium ... Negative catalysis C. Induced catalysis D. Auto catalysis
Description : Acetaldehyde on reaction with sodium hydrogen sulphite produces
Last Answer : Acetaldehyde on reaction with sodium hydrogen sulphite produces A. B. C. D.
Description : `50 mL` of `0.1 M` solution of a salt reacted with `25 mL` of `0.1 M` solution of sodium sulphite. The half reaction for the oxidation of sulphite ion
Last Answer : `50 mL` of `0.1 M` solution of a salt reacted with `25 mL` of `0.1 M` solution of sodium ... was `3`, what would be the new oxidation number of metal:
Description : Molybdenum is a cofactor for (A) Xanthine oxidase (B) Aldehyde oxidase (C) Sulphite oxidase (D) All of these