C:-Ring opening polymerization
D:-Solution polymerization
Correct Answer:- Option-D
Question47:-Density of cotton fibre is approximately
A:-1.52 denier
:-1.52 ५/९
C:-1.52 kg/'m*3>
D:-1.52 g/'cm*3°
Correct Answer:- Option-D
Question48:-Correct sequence of major steps for production of viscose fibre is
A:-Steeping-Shredding-Xanthation-Ageing-Dissolution-Ripening-Spinning
B:-Steeping-Dissolution-Xanthation-Shredding-Ageing-Ripening-Spinning
:-Steeping-Shredding-Ageing-Xanthation-Dissolution-Ripening-Spinning
D:-Steeping-Xanthation-Shredding-Ageing-Dissolution-Ripening-Spinning
Correct Answer:- Option-C
Question49:-Which combination is not correct?
A:-PET - Tg = 79°C
B:-Viscose Rayon - Xc = 35%
C:-Polypropylene - Disperse Dyes
D:-Nomex - Excellent Mechanical Properties
Correct Answer:- Option-D
Question50:-Which of the following statement is correct?
A:-Glauber salt is used in direct dye on cotton and acid dye on wool as a leveling agent
-Glauber salt is used in direct dye on cotton and acid dye on wool as an exhausting agent
C:-Glauber salt is used in direct dye on cotton as exhausting agent and acid dye on wool as leveling agent
D:-Glauber salt is used in direct dye on cotton as leveling agent and acid dye on wool as exhausting agent
Correct Answer:- Option-C
Question51:-Dispersing agent is used in disperse dye for polyester
A:-To make insoluble dye water soluble
-To increase the exhaustion of disperse dye
C:-To ensure level dyeing
D:-To prevent precipitation of disperse dye
Correct Answer:- Option-D
Question52:-Which is the true condition for reduction of vat dye?
A:-Redox potential of the dye bath must be higher than the dye
-Redox potential of the dye must be higher than the dye bath
C:-Redox potential of the dye and dye bath must be equal
D:-None of the above
Correct Answer:- Option-A
Question53:-CSP of yarn is equal to the product of
A:-Yarn count (Ne) and lea strength (Ibf)
B:-Yarn tex and lea strength (Ibf)
C:-Yarn count (Ne) and lea strength (kgf)
D:-Yarn tex and lea strength (N)
Correct Answer:- Option-A
Question54:-The trash content of cotton as fed to a beater is 3.6%. The waste extraction is 1.5% of which 80% is trash. The
cleaning efficiency % of beater is
A:-24%
B:-33.3%
C:-48%
D:-66%
Correct Answer:- Option-B
Question55:-What type of hooks are preferentially removed in roller drafting?
A:-Leading
B:-Trailing
C:-Both sided
D:-Diagonal
Correct Answer:- Option-B
Question56:-Which of the following statements is correct?