PTFE 3720-QUIZ2

PTFE 3720-QUIZ2 - Quiz 2 PTFE 3720 Fall 2010 Test Version C...

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Quiz 2 – PTFE 3720 – Fall 2010 – Test Version C Name ___________________________________ Student number ______________________________ 1. In long staple yarn manufacturing: a. All of the processing machines are the same as the ones used for short staple yarn manufacturing. b. The fibers are cut into short lengths so that they can be mixed with continuous filament fibers. c. The card is different than the card used in short yarn manufacturing. d. The card is not used to help align the fibers, since they are much longer than those used in short staple yarn manufacturing. 2. The following mechanism IS NOT used to insert the weft (or filling) yarn into a fabric during weaving: a. shuttle b. projectile c. cam d. rapier e. gripper 3. Which one of the following mechanisms is used to raise and lower the warp yarns during weaving: a. Torsion bar b. Slotted leveler c. Antistatic generator d. jacquard e. weave lifter 4. The reed in the weaving machine is involved in the ______________ loom mechanism. a. shedding b. Beat up c. picking d. closing e. opening 5. The weave shown below is a ________________________________ weave. a. 2 x 1 right hand twill b. 3 x 2 left hand twill c. basket weave d. plain weave e. herringbone 6. The weave shown below is a _____________ weave. a. 2 x 1 right hand twill b. 3 x 2 left hand twill c. basket weave d. plain weave e. herringbone 7. How is a looped pile carpet different from a cut pile carpet?                                                 1
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a. The machine used to make the looped pile carpet has a knife that cuts the backing as the carpet is made. b. The backing is looped around a drum during the making on the looped pile carpet c. The looped pile carpet has had its loops cut on the surface d. The looped pile carpet has loops on the surface e. The looped pile carpet is always heavier than a cut pile carpet. 8. What is the purpose of the sizing or slashing process? a. It is used to determine the size of the yarns in the woven fabric b. It is used to determine how much the price of a fabric will be slashed if a low quality (seconds) is made. c. To coat the warp yarns so that they can withstand the weaving process d. To remove the coating that was put on the filling yarns during knitting e. To put a coating on the filling yarns so that they can withstand the weaving process. 9. Which type of polymer is easiest to recycle a. A thermoset polymer b. A mixture of polymers that are all thermoplastic c. A polymer with a high degree of crosslinking d. A thermoplastic that is made on one type of polymer e. A cured resin 10. Which one of the following steps in the dyeing process is the one that describes the dye moving into the fiber? a.
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This note was uploaded on 09/09/2011 for the course PTFE 3720 taught by Professor Realff during the Spring '09 term at Georgia Tech.

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PTFE 3720-QUIZ2 - Quiz 2 PTFE 3720 Fall 2010 Test Version C...

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