Important Question for Gate Fiber science

Q1. The fiber which has a mineral origin is

(a) Asbestos       (B) silk      (C)  Flax       (D) Acrylic

Q2. The chemical that is used to convert soda cellulose to sodium cellulose xanthate
 In the manufacture of viscose rayon is

(A) Carbon disulphide    (B) Sodium Xanthate   
(C) Sodium sulphide     (D) Sodium hydroxide

Q3. The fiber that will float on water is

(A)  Nylon     (B) Polyester      (C) Acrylic         (D) Polypropylene

Q4. The range of spinning  speed (m/min) used in the manufacture of partially oriented polyester yarn is

(A) 1000-1200      (B) 2000-2500
(C) 2800-3500      (D) 4000-6000

Q5. Drawing of synthetic filament does not lead to an increase in

(A) Crystallinity         (B) Tencity          (C) Tensile modulus      (D) Elongation at break


Answer :-

Q1. Option (A)
Q2. Option (A)
Q3. Option (D)
Q4. Option (C)
Q5  Option (D)