True
False

Question 2: The yarns used in crepe fabrics use plied yarns with plying twist in the same direction as that of the single yarns.

True
False

Question 3: Which of the following is wrong?

CV% of the tenacity of the doubled yarn is always less than that of component single yarns
CV% of the extensibility of the doubled yarn is always less than that of component single yarns
Fabrics produced with doubled yarns have better cover than the fabrics produced with single yarns
Wear resistance of the doubled yarns is poorer than that of single yarns.

Question 4: Marl yarns and spiral yarns have the following number of component yarns

1
2
3
4

Question 5: TFO wound yarn packages do need rewinding.

True
False

Question 6: In TFO, the purpose of having the protection pot is

To reduce the yarn hairiness
To reduce the twist variation
To separate the balloon and the feed yarn to avoid abrasion
To improve the twisting efficiency

Question 7: In case of two-package feed TFO process,

The yarn from the bottom package will be subjected to higher tension
The yarn from the top package will be subjected to higher tension
Yarns from both the packages will be subjected to higher tension
Yarns from both the packages will be subjected to lower tension

Question 8: Which of the following fancy yarns is produced through weaving

Covered yarns
Chenille yarns
Fasciated yarns
Loop yarns

Question 9: Which of the following fancy yarns is produced through braiding or knitting

Snarl yarns
Chenille yarns
Slub yarns
Ribbon yarns

Question 10: In case of Knop yarns,

The core yarns are delivered intermittently
The knopping yarns are delivered intermittently
Both the core and knopping yarns are delivered intermittently
Both the core and knopping yarns are delivered continuously

 

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