FABRIC MANUIFACTURE - I

(MCQ : MODULE 5 - SIZING 1)

Question 1: Size is primarily applied on warp yarns to

Increase yarn uniformity
Increase yarn elongation
Increase yarn modulus
Provide protective coating against abrasion

Question 2: Sizing of warp yarn

Adds value to warp yarn
Improves weavability
Increases the strength of finished fabric
Increases breaking extension of the sized yarn

Question 3: Excessive size makes the warp yarn

Stiffer
More extensible
More hairy
Better from the point of weaving

Question 4: The wet pick up in sizing for an add-on of 18 % and wet liquor concentration of 12% will be

1
1.5
0.67
1.25

Question 5: An increase in size add-on

Consistently increases weavability
Consistently decreases weavability
Increases weavability up to a certain limit then decreases
Does not change weavability

Question 6: Size add-on can increase with increase in

Size paste viscosity
Nip pressure
Cylinder temperature
Yarn stretch

Question 7: With the increase in the sizing machine speed, size add-on would

Increase
Decrease
Remain constant
Increase initially and then decrease

Question 8: Size pick-up is not influenced by

Machine speed
Squeeze pressure
Size paste concentration
Drying cylinder temperature

Question 9: In a sizing machine, 100 m length of warp sheet was processed. The warp was stretched by 3%, 2% and 1% at unwinding zone, wet zone and drying zone respectively. The length of warp sheet on weaver’s beam will be

106.00 m
106.11 m
103.11 m
100.96 m

Question 10: Two dip and two nip would be preferred for

Multifilament yarn
Monofilament yarns
Staple fibre yarns
Hosiery yarns

 

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