Basic Viva For Textile Engineers (Fabric Related) Part-9

 

241. What is a wale?

Ans. A wale is a predominantly vertical column of intermeshed needle loops.

242. What is the first type of needle?

Ans. Bearded needle.

243. What is the problem of bearded needle?

Ans. Presser bar is used as closing elements.

244. What is the function of sinker that performed?

Ans.

loop formation

holding down

knocking over.

245. What is cam?

Ans. Cams are the devices which convert the rotary machine drive into a suitable reciprocating action for the needles or other elements.

246. Write down the types of cam.

Ans.

Engineering cam,

Knitting cam.

247. What is needle loop?

Ans. The needle loop is the basic unit of knitted structure.

248. Write down the types of clearing cam.

Ans.

Knit cam,

Tuck cam,

Miss cam

249. What is the basic knitting action of a needle?

Ans.

Rest position,

Opening,

Clearing,

Yarn feeding

Landing,

Knock over.

250. What is held loop?

Ans. A held loop is an old loop that the needle has retained

251. Where the interlock fabrics are used?

Ans. Under garments clothing.

252. Inter lock has the technical face of plain fabric on both side (yes/no).

Ans. Yes.

253. In interlock fabric, reverse or back loop is not seen (yes/no).

Ans. Yes.

254. Technical face & back is of different in single Jersey fabric (yes/no)

Ans. Yes

255. What do you mean by GSM?

Ans. Gram per square meter.

256. What do you mean by oz/sq. yd?

Ans. Ounce per square yard.

257. Where GSM is used?

Ans. The term GSM is popularly used in knitted industry because buying & selling are done on the basis of weight of the fabrics.

258. What is the GSM range for finer fabrics?

Ans. Below 150

259. What is the meaning of CVC & PC/TC?

Ans.

CVC = Chief value of cotton (i.e. cotton more than 50%)

PC/TC=Polyester&Cotton / Tetron & Cotton (i.e.polyester more than 50%)

83. What types of loops produce in knitting?

Ans. Interlocking or Interlooping loops.

260. Weft knitting produce in which form?

Ans. Tubular form.

261. In which/loop, shanks are above and heads are below?

Ans. Face loop.

262. What is sinker loop?

Ans. The loop that joins two adjacent needle loop.

263. What is the basic unit of knitted structure?

Ans. Stitch/loop

264. Legs or shanks are below and heads are above in back loop (Yes/No).

Ans. Yes.

265. In where alternate face and back loops produced by two sets needle?

Ans. Rib structure.

266. In interlock fabric, is back loop invisible?

Ans. Yes.

267. Which is the only movable cam in the cam box?

Ans. Stitch cam.

268. What is the principal element of knitting m/c?

Ans. Needle.

269. What fabric produced by adhesive and punching?

Ans. Non-woven fabric.

270. Write the process sequence of woven fabric production?

Ans.

(A) Yarn preparation

Winding

Drawing in and denting

Warping

Leasing

Sizing

Tyeing in / Knotting

(B) Weaving

(C) Inspection

(D) Folding

(E) Transfer to DPF (Dyeing, Printing & Finishing)