A. 10 atm., 800 °C
B. 10 atm., 170-180°C
C. 1 atm., 170 – 180°C
D. 1 atm., 800°C
Related Mcqs:
- Paper pulp produced by Kraft/sulphate process is__________________ ?
A. Bleached easily
B. Dull white in color
C. Strong fibrous
D. Dark colored - The most economical pulp for the production of newsprint would be the _____________________ pulp?
A. Ground-wood
B. Sulphate
C. Sulphite
D. Semi-chemical - 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 - The manufacture of Kraft pulp is done by a/an _________________ process?
A. Alkaline
B. Acidic
C. Neutral
D. None of these - 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 - 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 - The ideal pulp for the manufacture of paper should have high ____________________ content?
A. Cellulose
B. Lignin
C. Both A. & B.
D. None of these - Hollander beater used during paper pulp manufacture does not facilitate the ______________ of fiber?
A. Cutting
B. Fibrillation
C. Hydration
D. Strengthening - 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 - Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an?
A. Explosive
B. Soap
C. Detergent
D. Analgesic drug
