Which of the following is not a natural fiber ?

Related Mcqs:

1. Which of the following is a natural polyamide fiber?

   A. Wool
   B. Silk
   C. Cotton
   D. None of these

2. _______________ is a natural fiber?

   A. Cellulose
   B. Dacron
   C. Nylon-6
   D. None of these

3. Which of the following is not present in bagasse fiber?

   A. Cellulose
   B. Lignin
   C. Pentogens
   D. None of these

4. Which of the following is generally not drawn into fiber ?

   A. Polyamide
   B. Unsaturated polyesters
   C. Saturated polyesters
   D. Polyacrylonitrile

5. Main constituent of cotton fiber is __________________?

   A. Lignin
   B. Cellulose
   C. Starch
   D. Gelatine

6. _____________ is not a polyester fiber?

   A. Terylene
   B. Dacron
   C. Nylon
   D. Polyacrylonitrile

7. Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex ?

   A. Ammonium alum
   B. Potassium alum
   C. Both A. & B.
   D. Neither A. nor B.

8. Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids ?

   A. Starch
   B. Cellulose
   C. Proteins
   D. Nucleic acids

9. Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness ?

   A. Phosphorous
   B. Carbon black
   C. Pine oil
   D. Rosin

10. Which of the following is not a natural polymer ?

    A. Nucleic acids e.g. RNA and DNA
    B. Polysaccharides
    C. Polyisoprene
    D. Polyurethane