E-PolyLearning

1. Variations in sliver mass in drawframe are detected by
a. measurement device
b. variation device
c. correction scale
d. measurement scale
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Answer: (a).measurement device

2. Sliver with parallel fibers allows a yarn with better
a. regularity
b. fineness
c. resistance
d. all of above
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Answer: (d).all of above

3. Draft cylinders glide on
a. rolling bearings
b. cylinders
c. plates
d. rollers
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Answer: (a).rolling bearings

4. Value of web tension draft on drawframe can vary from
a. 0.1 to 0.2 times
b. 0.3 to 0.5 times
c. 0.7 to 0.8 times
d. 0.9 to 1.0 times
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Answer: (d).0.9 to 1.0 times

5. Number of defects in sliver is proportional to
a. number of floating fibers
b. waves' frequency
c. both a and b
d. moisture
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Answer: (c).both a and b

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