APM604A Knitting & Knitwear Technology B.Tech Question Paper : wbut.ac.in

Name of the University : West Bengal University of Technology
Department : Apparel Production Management
Degree : B.Tech
Sem : VI
Subject Code/Name : APM-604A/Knitting & Knitwear Technology
Website : https://makautwb.ac.in/
Document Type : Previous Year Examination Question Paper

Download Model/Sample Question Paper :
2013 : https://www.pdfquestion.in/uploads/qpaper.wbut.ac.in/6408-APM-604A.pdf

WBUT Knitting & Knitwear Technology Question Paper

Time Allotted : 3 Hours
Full Marks : 70
** The figures in the margin indicate full marks.
** Candidates are required to give their answers in their own words as far as practicable.

Related : West Bengal University of Technology APM601 Application of IT & CAD/CAM in Apparel Industry B.Tech Question Paper :  www.pdfquestion.in/6405.html

Question Paper 1

GROUP – A
1. Choose the correct alternatives for the following : 10* 1 = 10
i) The two sides of which weft knitted fabric are not identical ?
a) Plain single jersey b) Plain rib
c) Plain interlock d) None of these.

ii) Faults appear on knitted fabrics due to
a) Yarn quality
b) Problems on knitting machines
c) Problems during dyeing and finishing of fabrics
d) all of these.

iii) To produce any design on a weft knitting machine, use of which type of cam is compulsory ?
a) Knit cam b) Tuck cam
c) Miss cam d) None of these.

iv) Which needle is termed as self-acting needle ?
a) Bearded needle
b) Latch needle
c) Compound needle
d) None of these.

v) Flat knitting machines are generally used to produce
a) Single jersey structure
b) Rib structure
c) Interlock structure
d) None of these.

vi) The extensibility of which weft knitted fabric is maximum ?
a) Single jersey b) Rib
c) Interlock d) Fleece.

vii) A knitting stitch that produces a herring bone effect with a rib back is
a) Rack stitch b) Raschel lace
c) Raschel d) Velour.

viii) A knit fabric stitch that produces a design that looks like a heavy cord – common in sweaters and hosiery is
a) Canvas
b) Canton flannel
c) Albatross
d) Cable stitch.

ix) The process whereby portions of a garment are shaped at the selvedges by progressively increasing or decreasing the number of loops in the width of the fabric is
a) single jersey b) fully cut
c) fully fashioned d) rib.

x) Which of the following is not the basic technique of integral knitting ?
a) Course shaping
b) Tubular knitting
c) Open buck
d) Running-on.

GROUP – B
Answer any three of the following. 3 5 = 15
2. “Two yarn feeders are required to produce one course of a basic interlock structure.” Explain.
3. Multi-track circular weft knitting machines are more versatile than single-track ones in terms of design. Explain.
4. What is spirality and how does it appear in knitted fabrics ? How this can be reduced ?

5. Write short notes on any two of the following :
a) Cardigan half
b) Cardigan full
c) Cheviot
d) Interlock.
6. What are the common sewing defects and their remedies of sewing sweaters ?
7. Elaborate on body form steam press and steam press.

GROUP – C
Answer any three of the following. 3 *15 = 45
8. a) With the help of suitable diagram, explain the different stages of loop formation cycle of a weft knitting machine using latch needle. 10
b) What are the different kinds of stitches in weft knitting and how are they formed ? 5

9. a) Calculate the production of a single jersey weft knitting machine in kilogram per shift of 8 hours from the following data : 5
Diameter of machine – 30 inches
Machine gauge – 24
No. of feeders – 96
Machine speed – 30 rpm
Stitch length – 2.5 mm
Yarn used – 20s combed yarn
Machine efficiency – 85%

b) Mention the important quality parameters of yarns, used for knitting and elaborate as to how these parameters affect the quality of knitted fabrics and productivity of a knitting machine. 10

Question Paper 2

Time Allotted : 3 Hours
Full Marks : 70
** The figures in the margin indicate full marks.
** Candidates are required to give their answers in their own words asfar as practicable.

GROUP – A : ( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) Weft knitted fabrics are preferred for apparels than warp knitted fabrics due to
a) lower cost b) suitable structure
c) better technology d) easy to operate.

ii) Faults appear on knitted fabrics due to
a) yarn quality
b) problems on knitting machines
c) problems during dyeing and finishing of fabrics
d) all of these.

iii) All the single jersey weft knitted structures essentially require
a) Knit loops b) Tuck loops
c) Miss loops d) All of these.

iv) On a flat knitting machine, which structure of knitted fabrics is generally made ?
a) Single jersey b) Rib
c) Interlock d) All of these.

v) Which yarn property is responsible for making spirality of weft knitted fabrics prominent ?
a) Bursting strength
b) Elongation
c) Twist
d) Thick and thin places.

vi) Fully fashioned garments have
a) no cutting waste
b) edges that do not fray
c) can be joined by simple non-bulky seams
d) all of these.

vii) All knitted garments can be classified according to general production method into which of the following ?
a) Integral and fully cut
b) Fully cut and stitch shaped
c) Fully cut, stitch shaped, fully fashioned and integral
d) None of these.

viii) Commn collar styles for knitted garments are
a) ‘V’ neck and round neck
b) Round neck and polo neck
c) Shirt neck, ‘V’ neck, round neck, turtle neck, polo neck
d) Shirt neck, Square neck, ‘V’ neck, polo neck, turtle neck.

ix) Fully fashioned garments are produced on
a) hand flat knitting machinery, either V-bed or domestic single bed
b) only ‘V’ bed
c) only domestic single bed
d) none of these.

x) The speed of overlock machine is categorized by
a) maximum speed in stitches per minute
b) the production in meters of seam per minute at maximum stitch length
c) either of these
d) none of these.

GROUP – B : ( Short Answer Type Questions )
Answer any three of the following. : 3 × 5 = 15
2. Compare the essential properties of woven and knitted fabrics for apparel use.
3. How do knit, tuck and miss stitches influence the structural design of weft knitted fabrics ?
4. Compare single jersey and rib fabrics from the view point of their use in apparels.

5. Write short notes on the following :
a) Cutting machines
b) Sewing defects.
6. What are the different kinds of seams used in sweater ?

GROUP – C : ( Long Answer Type Questions )
Answer any three of the following : 3 × 15 = 45
7. a) Explain the techniques of forming knit, tuck and miss loops on weft knitted fabrics.
b) Write in brief about the process and products of warp knitting. 8 + 7
8. a) Explain the basic principle of producing rib fabric on a flat knitting machine.
b) Spun yarns used for knitting demand more stringent norms of yarn properties than the yarns for weaving. Explain this, considering the relevant yarn properties. 8 + 7

9. a) Quality of weft knitted fabrics depend very much on the quality and maintenance of different knitting elements of the machine. Justify this mentioning some important fabric defects.
b) What would be the production in kg/hour of a single jersey weft knitting machine of 30 inch diameter, 24 Gauge, 96 feeders and running at 30 r.p.m., producing basic single jersey cottong fabric of 2·5 mm stitch length using 24s yarn ? Assume any value of efficiency of your reasonable choice. 8 + 7

10. What do you know about the types of circular sweater strip machines ? What are the production techniques for sweaters ?
11. What are the types of yarns used for winter garments ? What are the quality specification and requirements of fabric for winter garments ?