Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the _____________ process?

Related Mcqs:

1. 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

2. 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

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

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

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

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

5. ______________ paper is used in the manufacture of newsprint paper ?

   A. Ground-wood
   B. Board
   C. Tissue
   D. Wrapping

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

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

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

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

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

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

9. 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

10. Production of one ton of dry paper pulp requires about ___________________ tons of bamboo or wood?

    A. 1
    B. 2.5
    C. 5
    D. 10