In sulphate pulp manufacture, the pressure and temperature in the digestor is____________________?

Related Mcqs:

1. Paper pulp produced by Kraft/sulphate process is__________________ ?

   A. Bleached easily B. Dull white in color C. Strong fibrous D. Dark colored...

2. The most economical pulp for the production of newsprint would be the _____________________ pulp?

   A. Ground-wood B. Sulphate C. Sulphite D. Semi-chemical...

3. 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...

4. The manufacture of Kraft pulp is done by a/an _________________ process?

   A. Alkaline B. Acidic C. Neutral D. None of these...

5. 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...

6. 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...

7. The ideal pulp for the manufacture of paper should have high ____________________ content?

   A. Cellulose B. Lignin C. Both A. & B. D. None of these...

8. Hollander beater used during paper pulp manufacture does not facilitate the ______________ of fiber?

   A. Cutting B. Fibrillation C. Hydration D. Strengthening...

9. 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...

10. 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...