C:-Flax
D:-Wool
Correct Answer:- Option-D
Question77:-For same count, rotor yarn TM is
A:-2 times greater than that of ring yarn.
B:-10-15 % greater than ring yarn.
C:-Same as ring yarn.
D:-10-15% lower than ring yarn.
Correct Answer:- Option-B
Question78:-In case of Mélange yarn production, with the increase of shade depth
A:-Yarn quality deteriorates
B:-Yarn quality remains same
:-Yarn quality improves
D:-Yarn quality firstly improves and then deteriorates
Correct Answer:- Option-A
Question79:-In case of air-vortex spinning
A:-All fibres start from the centre of the yarn and run outside.
B:-All fibres start from the surface of the yarn and run inside.
C:-Core fibres are parallel and the sheath fibres are wrapped over the core fibres
D:-Core fibres have a twist direction which is different from the sheath fibres
Correct Answer:- Option-A
Question80:-In comparison with the ring spun yarn, air-jet spun yarn is
A:-Weaker, stiffer and harder
-Stronger, softer and smoother
C:-Weaker, bulkier and harsher
D:-Stronger, hairier and evener
Correct Answer:- Option-A
Question81:-Feed per nip of comber is around

D:-18 mm

Correct Answer:- Option-B
Question82:-Self-cleaning action in a comber
A:-Increases with batt weight

-Decreases with batt weight
C:-Does not change with batt weight
D:-Decrease with fibre disorientation
Correct Answer:- Option-A
Question83:-Quality of combing is better in
A:-Forward feed
B:-Backward feed
C:-Mixed feed
D:-Differential feed
Correct Answer:- Option-B
Question84:-Which machine in the spinning line is termed as necessary evil for producing ring spun yarn?
A:-Card
B:-Comber
C:-Ring frame
D:-Speed frame
Correct Answer:- Option-D
Question85:-Pressure bar in draw frame is used to
A:-Apply pressure to the front top roller.
-Apply pressure to the middle top roller.
C:-Control the long fibre movement.
D:-Control the short fibre movement.
Correct Answer:- Option-D
Question86:-Yarn tension during winding is proportional to the
த: (Yarn tex)*(2)°