CS/B.TECH(TT) (OLD)/SEM-4/TT-404/2012
2012
CHEMICAL PROCESSING OF TEXTILES – II
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) Which dye has highest tintorial value ?
a) Basic dye b) Acid dye
c) Reactive dye d) Direct dye.
ii) Which one of the dyes has highest alkali fastness ?
a) Cold brand reactive dye
b) Vat dye
c) Hot brand reactive dye
d) None of these.
iii) Unit of affinity is
a) J b) kJ/mole
c) gm d) dyne/cm.
iv) Dye-fibre combination which forms solid-solid
solution is
a) cellulosic fibre and reactive dye
b) protein fibre and acid dye
c) polyester and disperse dye
d) acrylic fibre and basic dye
e) none of these.
v) Reactive dyes having dichlorotriazine functional group
will come under the class of
a) hot brand
b) cold brand
c) both (a) and (b)
d) reactive dye have no such group.