CS/B.Tech/TT (NEW)/SEM-6/TT-601/2013
2013
YARN FORMATION – III
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
( Objective Type Questions )
1. Answer the following questions : 10 × 1 = 10
A. Choose the correct alternatives for the following :
4 × 1 = 4
i) Which one of the following types does not use roller
drafting system ?
a) Rotor spinning
b) Air-jet spinning
c) Electrostatic spinning
d) Dref-III friction spinning.
ii) Which of the following is not false twisted
element ?
a) Navel in rotor
b) Friction drums in Dref-III
c) 2nd twist nozzle in MJS
d) Parallelisator in Dref-II.
iii) Hollow spindle spinning is used to produce
a) self twist yarn b) twistless yarn
c) wrap spun yarn d) siro yarn.
iv) Amount of draft in air-jet spinning can be reached
