POLYMER SCIENCE
1.
What are monomers and
polymers?
2.
What is monomer residue?
3.
What is repeat unit of a
polymer chain?
4.
What is the difference between
homopolymer and co polymer?
5.
What is branched polymer?
6.
What is dendrimer?
7.
What is the difference between
thermoplastic and thermosetting polymer?
8.
What are blocked polymers?
9.
What are graft polymers?
10. Difference
between isotactic, syndiotactic and atactic polymers?
11. What
is combed polymer?
12. What
are star polymers?
13. What
is polymerization and how it can be classified?
14. What
is chain polymerization?
15. What
are the steps of polymerization?
16. What
is free radical polymerization?
17. What
is the mechanism of free radical polymerization?
18. Differentiate
between anionic and cationic polymerization
19. What
are free radicals? How it can be produced?
20. What
is chain transfer reaction?
21. What
is CTA?
22. What
is copolymer?
23. What
is living polymer?
24. What
is step or condensation polymerization?
25. What
is self-condensation?
26. What
is AA-BB type polymerization?
27. What
are the conditions of step polymerization?
28. What
are the methods or techniques of polymerization?
29. What
is gas phase polymerization?
30. What
is liquid phase polymerization?
31. What
are the advantages and disadvantages of solution polymerization?
32. What
are the advantages of bulk polymerization?
33. What
are the ingredients used in an emulsion polymerization/
34. What
is interfacial poly condensation?
35. What
is the basic principle of interfacial poly condensation?
36. What
do you mean by monodisperse and poly disperse system?
37. What
is index of polydispersity?
38. What
is end group analysis?
39. Why
is osmometry?
40. What
is Z average molecular weight of polymer?
41. What
is molecular weight distribution curve?
42. What
are the methods used to calculate Mn and Mw?
43. What
do you mean by crystallinity and amorphousness in a polymer?
44. What
is Tg and Tm?
45. What
are the relations between Tg and Tm?
46. What
is Tf?
47. What
is Tg of rubber, nylon and polyester?
48. What
is crystallinity of polymer?
49. What
is amorphousness of polymer?
50. What
is index of crystallinity?
51. What
are the factors affects crystallinity in a polymer?
52. What
are the inter-molecular forces in a polymer?
53. What
is
a.H-bonding
b. salt linkage c. ionic bond d. Van deer wale forces e. hydrophobic
interaction f. NMR g. SEM h. AFM i. Polymer degradation
54. How
is polymer characterized?
55. What
are the types of polymer degradation?
56. What
is
a.
Chain end degradation
b.
Random degradation
c.
Thermal degradation
d.
Mechanical degradation
e.
Oxidative degradation
f.
Hydrolytic degradation
57. What
are anti oxidants?
58. What
are the factors required for a polymer to form a fiber?
TEXTILE RAW MATERIALS (PART – I)
1.
What is fiber?
2.
What is filament?
3.
What is textile fiber?
4.
Classify the textile fiber in
broad sense
5.
Give some examples of seed
fiber, leaf fiber, regenerated fiber and synthetic fiber
6.
Mention some important/ major
cotton cultivated countries
7.
What is upland and American
pima cotton?
8.
Classify the cotton fiber on
the basis of staple length
9.
Mention the range of length,
diameter and spinning limit of cotton fiber
10. What
are the main elements of cotton fiber?
11. What types of impurities of are found in raw
cotton?
12. Mention
some grading systems of raw cotton fiber
13. What
are cotton linters and uses of linters?
14. Mention
the average strength and MR% of cotton fiber
15. What
is the effect of acids and alkali on cotton fiber?
16. What
is ginning and it’s type?
17. What
do you know about Bangladeshi cotton?
18. What
types of faults are found in raw cotton?
19. Mention
the average length of jute fiber
20. Mention
the main elements and their amount jute fiber
21. Mention
the average strength and MR% of jute fiber
22. What
is the effect of acids and alkali on jute fiber?
23. What
types of defects are found in jute fiber?
24. What
are the uses of jute fiber?
25. What
is retting?
26. What
types of reagents are used for chemical retting?
27. What
are the main elements of flax fiber?
28. Mention
the strength and MR% of flax fiber
29. What
are the effects of acids and alkali on flax fiber?
30. What types of dyes are used for cotton, jute
and flax fiber?
31. What
is the end use of flax fiber?
32. What
are the uses of Ramie, Hemp, kemi and sisal?
33. Mention
the average strength of wool fiber
34. What
are the main elements of wool fiber?
35. Mention
the major wool producing countries
36. What
are the effects of acids and alkali on wool fiber?
37. What
types of dyes are used for wool dyeing?
38. What
is the end use of wool fiber?
39. Mention
the natural filament
40. Mention
the major silk producing country
41. How
can you express the fineness of silk filament?
42. Mention
the average length and strength of silk filament
43. What
is the effect of acids and alkali on silk?
44. What
is the end use of silk?
45. What
types of dyes are used for silk dyeing?
TEXTILE RAW MATERIALS (PART-II)
1.
What are chemical fibers?
2.
How chemical fibers are
classified?
3.
What are natural polymers
based chemical fibers?
4.
What are the spinning methods
of chemical fibers?
5.
What is dry spinning?
6.
What is Melt spinning?
7.
What is Wet spinning?
8.
What are the solvents
generally used in dry spinning?
9.
What are the coagulants used
in wet spinning?
10. What
is spinneret? Why it is used?
11. What
is plastisizer and why it is used in spinning chemical fibers?
12. What
is spin finishes?
13. What
are the functions of spin finishes in production chemical fibers?
14. What
is drawing and stretching of chemical fibers?
15. What
is the difference between cold draw and hot draw?
16. What
is texturing?
17. What
are the objectives of texturing?
18. What
is false twist method for texturing?
19. What
are the available methods for texturing?
20. What
is regenerated fiber?
21. Classify
different viscose fibers
22. Mention
chemistry involved in production of viscose rayon?
23. What
raw materials are available for viscose rayon production?
24. What
is pulp and how it is prepared?
25. What
type of spinning is suitable for viscose rayon?
26. What
ingredients are used in spinning bath of viscose rayon production?
27. What
is polynosic?
28. What
is HWM viscose rayon?
29. What
are the tests for ripening viscose? How it can be classified?
30. How
are the physical properties of viscose rayon?
31. How
are the chemical properties of viscose rayon?
32. How
is viscose rayon affected by water, sunlight?
33. What
are the uses of viscose rayon?
34. What
is the polyester fiber according to FTC?
35. Difference
between Dacron and Terylene?
36. What
is Tory?
37. What
are the methods available for spinning polyester fibers?
38. What
is Kodel 200?
39. How
are the physical and chemical properties of polyester?
40. How
is polyester affected by temperature and sunlight?
41. What
are the uses of polyester?
42. What
are polyamide fibers?
43. How
is polyamide fiber classified?
44. What
is Nylon 6,6 and Nylon 6?
45. What
are aramids fibers?
46. How
are the physical and chemical properties of nylon fibers?
47. How
do heat and organic solvent affect nylon fibre?
48. What
are the applications of polyamide fibers?
49. What
is acrylic and mod-acrylic fiber?
50. What
is suitable spinning method for acrylic fiber and why?
51. How
are the physical and chemical properties of acrylic fiber?
52. How
is acrylic fiber affected by temperature?
53. What
are the uses of acrylic fibers?
54. What
is acetate and acetate fiber?
55. Difference
between acetate and di-acetate fiber
56. Mention
chemistry involved in production of acetate and diacetate fibers
57. How
are the physical and chemical properties of
acetate and diacetate fibers?
58. How
is acetate fiber affected by moisture?
59. What
are the uses of diacetate fibers?
60. What
is polyurethane fiber?
61. What
are the methods for spinning polyurethane fiber?
62. How
are the physical and chemical properties of polyurethane fiber?
63. How
do organic solvent and heat affect polyurethane fiber?
64. What
are the uses of polyurethane fiber?
65. What
is glass fiber?
66. What
is E glass and C glass?
67. What
are the ingredients used in preparation E glass?
68. What
are the spinning methods of glass fiber?
69. What
are the uses of glass fiber?
70. What
is bi-component fiber?
71. How
is bi-component prepared?
72. What
are the objectives of preparation bi-component fiber?
73. What
are the uses of bi-component fiber?
74. What
are PVC, Vinyon, Dynel, PVA & Carbon fiber?
Wet processing technology
1.What are the problems associated by
hard water in desizing / scouring/ bleaching/ mercerizing/ dyeing / printing /
finishing?
2.What are the methods of water
softening?
3.Classify water according to
hardness.
4.What is hardness of water?
5.What is permanent hardness of
water?
6.What is temporary hardness of
water?
7. What is soap?
8.Which oils are used in soap
manufacturing process?
9.What is detergent?
10.What are the advantages and disadvantages
of non-ionic detergent?
11.Classify detergent.
12.What is singeing?
13.What are the objects of singeing?
14.Name some singeing machines
15.What is desizing?
16.What types of sizes commonly used
for sizing?
17.Name some natural gum sizes or synthetic
sizes
18.What are the methods of desizing?
19.What are the objects of desizing?
20.Define scouring, objects of
scouring
21.How can you measure the quality of
scouring?
22.What is keir? What are the types
of kier?
23.What are the precautions to be taken
for kier boiling process?
24.Which builders are used in
scouring process and this purposes?
25.Define bleaching and object of
bleaching
26.Name some bleaching agent
27.What are the steps of continuous
bleaching process?
28.Which bleaching agent is suitable
for cotton bleaching?
29.Name some oxidizing and reducing
bleaching agent
30.What is dye or dyestuffs?
31.What is pigment?
32.What are the differences between
dyes and pigments?
33.What is fastness?
34.What is color fastness? Give some
example
35.What is a. water fastness?
b. Wash fastness
c.
Perspiration fastness
d.
Rubbing fastness
e.
Light fastness
f.
Sea water fastness
g.
Chlorinated pool water
36.What do you know about primary
color, secondary color, and tertiary color?
37. What are the primary colors in
subs tract / pigment theory of color?
And in additive / light theory of
color
38. Classify dyes on the basis of
physical form and application method
39.Give some examples of water
insoluble dyes and water-soluble dyes
40. What is concentration gradient?
41. What is absorption isoform?
42.What is auxochromo, chromophore
group in dye stuffs?
43.Give some examples of hydrophilic
and hydrophobic fibres?
44.On which factors dye selection
depends?
45.Classify dyeing machines.
46.Give some examples of fibre dyeing
m/c, yarn dyeing m/c and fabric dyeing m/c
47.Give some advantages and
disadvantages of jet, jigger and winch dyeing m/c
48. What are the methods of
semi-continuous and continuous dyeing m/c?
49.Why direct dye is called direct
cotton dye and substantive dye?
50.What fibres are mainly dyed with
acid dye?
51.Why acid, vat, direct, basic dyes
are so called?
52.What is vatting?
53.Give some properties of direct,
acid, basic and vat dye.
54.What is printing?
55.What are the styles of printing?
56.What is thickener?
57.What are the methods of printing?
58.What are the advantages and
disadvantages of block printing m/c, screen-printing m/c, rotary printing m/c,
transfer printing m/c and stencil printing m/c?
59.Difference between automatic flat
bed screen-printing and rotary printing machine
1.
What
is pigment ?
2.
What are the properties of a
good pigment?
3.
What is organic and inorganic
pigment?
4.
What are the differences
between dye and pigment?
5.
How are pigments classified?
6.
How is pigment worked as
colorant?
7.
How is pigment applied for
dyeing textiles?
8.
What are the advantages and
disadvantages of pigment dyeing?
9.
What are the fastness
properties of pigment dyed fabrics?
10. How
are the rubbing fastness properties of pigment dyed fabrics?
11. Name
some well-known ancient natural dyes with mentioning sources.
12. Mention
the stages of textile materials in which natural dyes can be applied.
13. Name
the equipments necessary for home dyeing and very small-scale commercial dyeing
in case of natural dyes.
14. What
do you understand by natural Mordants?
15. What
are the categories of natural dyestuffs?
16. What
is synthetic Mordant?
17. What
is Alizerine?
18. What
are pre-metallised dyes?
19. What
is 1:1 & 2:1 metal complex dye?
20. What
are the fastness properties of pre-metallised dyes?
21. What
are the disadvantages of metal complex dyes?
22. Why
is dye aggregation?
23. Why
is connective diffusion?
24. What
is electrical double layer?
25. What
is adsorption, sorption, desorption and diffusion?
26. What
are the factors control rate of dyeing?
27. What
is dyeing kinetics?
28. What
is dyeing equilibra?
29. What
are the factors that influence level dyeing?
30. What
is pore model?
31. What
is free volume model?
32. What
is substantivity?
33. What
is affinity?
34. What
is chromophore group?
35. What
is auxochrome?
36. What
is partition co-efficient?
37. What
is emulsion thickener?
38. What
is oil in water emulsion?
39. What
is synthetic thickener?
40. What
are the advantages of synthetic thickener?
41. What
is print paste rheology?
42. What
is HLB? Mention the range of HLB
43. What
is half emulsion?
44. How
is screen-printing m/cs classified?
45. How
is flat screen prepared?
46. What
are the factors influence the penetration of paste through screen?
47. What
is the squeeze systems used in flat screen-printing machine?
48. How
is printing quality influenced by the following factors: by the stroke and by
squeeze angle?
49. Why
is adhesive system used in a fully automatic flat screen-printing m/c?
50. What
is rotary screen?
51. What
is the squeeze systems used in rotary screen-printing machine?
52. What
are the advantages of rotary screen-printing machine?
53. What
is the fundamental mechanism of screen-printing?
SPECIAL WET
PROCESSING ( 4th year)
1.
What is foam?
2.
What are the types of foam?
3.
Why foam may be used for wet
processing?
4.
What is blow ratio?
5.
What is foam density?
6.
What is litre weight?
7.
Give a relationship between
foam density, blow ratio and litre weight
8.
How the quality of can be
evaluated?
9.
Describe FFT process of foam
application
10. Describe
MITTER foam applicator for carpet
11. Mention
with suitable sketch the RSF foam application
12. Describe
Jannus mini foam application
13. Describe
Monforts foam application
14. What
are the advantages & disadvantages of foam process?
15. Why
solvent may be used for dyeing media?
16. What
are the requirements of an ideal solvent for dyeing?
17. What
are the limitations of use solvent in dyeing?
18. Compare
trichloro ethane, per chloro ethane & 1,1,1 trichloro ethane with water as
a dyeing media
19. Why
polyester can be dyed successfully at 100’c temp without carrier by using
solvent?
20. What
are the advantages and disadvantages of solvent dyeing?
21. What
are the light sensitive parts of a human eye?
22. What
do you mean by angle of sight?
23. What
is rod and cone?
24. What
is SCOTOPIC VISION?
25. What
are the types of cone cells?
26. What
is luminosity curve?
27. What
is PHOTOPIC VISION?
28. What
is cone sensitivity curve?
29. What
are the reasons of defective color vision/
30. What
do you mean by the term Monochromates, dichromates and trichromates?
31. What
do you mean by the term Anomalous trichromates?
32. Describe
the term Metamerism
33. Why lamp options are necessary?
34. Describe
D65,TL84, CWF, U30, W, F, UV etc
35. What
is color-rendering index (CRI)?
36. Describe
trimatic theory of color vision
37. What
are the limitations of trimatic theory of color vision?
38. What
do you mean by CIE?
39. What
do you mean by the term CIE X42?
40. What
are hue, value, chroma?
41. What
are the properties of CIE l* a* b* color space?
42. Describe
the meaning of L* a* b*
43. What
do you mean by the terms a. color difference b. standard observer c. color
contrast
44. Describe
Monochromatic contrast and polychromatic contrast
45. Describe
successive contrast and simultaneous contrast
46. Describe
contrast of hue & contrast of true
47. What
do you mean by the term color harmony?
48. Describe
with further classification, harmony of analogy & Harmony of contrast
49. What
do you mean by the term CCM system?
50. What
are the things needed for CCM system?
51. Describe
the available software
52. Give
a flow diagram of CCM system
53. What
is Kubelka-Munk theory?
54. What
is Lambert-Bur theory?
55. What
do you mean by the term K/S value?
56. What
database is required for CCM system?
57. What
optical models are used in CCM system?
58. What
are the characteristics of raw effluent of a dye house?
59. What are the minimum qualities of effluent
required to discharge in natural watercourse?
60. What
is BOD and what is COD?
61. What
are the harmful effects of effluent on environment if it is not treated?
62. Give
a ideal flow diagram of a effluent treatment and disposal system
63. What
do you mean by the term chemical coagulation?
64. What
do you mean by the term primary clarifier and secondary clarifier?
65. Why
biological treatment needed for the effluent?
66. What
are the types of sludge handling system?
PART-III
1.
What are the minimum standards
of dye house water quality?
2.
Define German hardness, French
hardness, English hardness and American hardness.
3.
Classify water according to
hardness
4.
What are the bases of
determination of total hardness by soap method?
5.
What do you mean by the term “standard soap”?
& How it can be prepared?
6.
What is scudding factor and
how it can be considered?
7.
How temporary hardness can be
determined by titration method?
8.
What problems may arise in the
boiler due to hardness?
9.
What are the boilers feed
water feeds standard?
10. What
are the problems may arise in the processing due to hardness?
11. What
are the conventional methods of water softening?
12. What
is demineralization process? What do you mean by this term compacting?
13. What
problem may arise in the processing due to iron contact in water?
14. How
the iron problems can be minimized?
15. What
do you mean by the term alkaline hardness?
16. How
alkaline hardness can be determined?
17. Give
the procedures of correction of alkalinity?
18. What do you mean by the term surface-active
agent?
19. What
are the mechanisms of oil/ dirt detachment from the fibre surface by
detergents?
20. Give
the classification of detergent
21. Give
at least one example from each type of detergent
22. What
are the special characteristics of amphoteric detergent?
23. How
detergency power can be evaluated?
24. Why
the use of softener is increasing day by day?
25. What
are the desirable properties of textile softeners?
26. What
are the types of textile softeners?
27. Why
cationic softener is more used than the others?
28. Write
about reactive softeners
29. Give
the examples of anionic and non-ionic softeners
30. Write
notes on amphoteric softeners
31. What
are normal silicon softeners and what are amino-functional silicon polymers?
32. How
you can distinguish silicon macro emulsion and silicon micro emulsion?
33. What
are the outstanding advantages of silicon softeners?
34. How
bacteria degrade and damage the fabric?
35. What
are cellulose enzymes?
36. What
are the conditions that can cause bacterial growth?
37. What
are the requirements of an anti-bacterial agent?
38. How
creating physical barrier for the bacterial attack can protect fabric?
39. Describe
the methods of anti-bacterial finish by using toxic agent?
40. How
fabric can be protected from bacteria by chemical modification?
41. What
are the latest developments on anti-bacterial finish?
FINISHING PART
1. Define fabric
finishing
2. Give the
classification of fabric finishing
3. What are the objects
of fabric finishing?
4. What are the
factors to be considered to choice of finishing route?
5. What are the
objects of calendaring machine?
6. What are the
main elements of essentials of calendaring finish?
7. What are the
types of damping m/c?
8. Give a
general description of a calendaring m/c?
9. Describe a:
swizzing finish b. friction calendaring c. chasting finish d. embossing
10. What is
raising?
11. What is
flunnel fabric and what is fleece fabric?
12. What are the
types of raising m/c?
13. What is
double acting m/c and single acting m/c?
14. What is
emerizing?
15. What is polar
fleece?
16. What do you
mean by the term residual shrinkage?
17. What is
sanforizing?
18. What are the
objects of sanforizing process?
19. Explain
sanforizing process with a schematic diagram
20. What do you
mean by the term compressive shrinkage?
21. What is
mercerization?
22. What are the
objects of mercerization?
23. What physical and chemical changes happened in
the cotton fibre by mercerization process?
24. What are the
benefits obtained by the mercerization process?
25. Why strength,
hygroscopicity, dye-affinity and luster increased by mercerization process?
26. What are the
effects of tension on mercerization process?
27. What are the
effects of temperature on mercerization process?
28. What are the effects of caustic soda concentration
on mercerization process?
29. What are the
effects of time of treatment on mercerization process?
30. What are the
effects of washing condition on mercerization process?
31. How yarn can
be mercerized in hank form and continuous sheet form?
32. Describe cloth
mercerizing process
33. How
mercerizing effect can be assessed?
34. What is
resin?
35. What are the
benefits of resin finishing on cotton fabric?
36. Give a
general recipe for resin finishing
37. What is urea
formaldehyde precondensate?
38. Give the
probable reactions may happened at the time of treatment of cotton material
with urea formaldehyde.
39. What are the
advantages and disadvantages of urea formaldehyde resin?
40. What are the
advantages and disadvantages of Kaurit AF140?
41. What are the
advantages of di-methyl ethylene urea?
42. What is
Kaurit AF140?
43. What are the
advantages and disadvantages of DMEU?
44. Give the
application procedure DMEU?
45. What is
DMDHEU? (Di methylol di hydroxy ethylene urea)
46. Give the
reactions has taken place with Di methylol di hydroxy ethylene urea and cotton
47. Give the
application procedure of DMDHEU
48. What is water
proof, water repellant and shower proof fabric?
49. What do you
mean by the term durable water repellant finish/
50. Describe the
application procedure of Valan PF and Cerol WB?
51. Give the
application procedure of Persuitol VS & Phobotex FT?
52. What are poly
siloxanes?
53. What are the
types of poly siloxanes?
54. Describe the
application procedure of silicon emulsion M478
55. Give the
burning cycle of polymer
56. Give the
thermal degradation chart of cellulose
57. What are the required
properties of an ideal flame retardant chemical/
58. What are the
types of flame retardant process/
59. Give the
application procedure of Pyrovatex and
THPC
60. What are the
advantages of THPC over other flame retardant chemicals?
1. Give a
schematic diagram of vapor loc system of scouring & also give the recipe
2. What are the
advantages and disadvantages of vapor loc system of scouring?
3. What do you
mean by the term solvent scouring?
4. Mention with
flow diagram of solvent scouring of cotton fabric
5. What are the advantages and disadvantages
of solvent scouring?
6. How scouring
effect can be estimated?
7. How bleaching
effect can be estimated?
8. How
mercerizing effect can be estimated?
9. Describe the
methods of determination of available chlorine in bleaching powder
10. Describe the
methods of determination of strength of hydrogen peroxide
GARMENTS TECHNOLOGY
1.
Why garments industries are
important in the economy of Bangladesh?
2.
Describe historical background
of garments?
3.
What is GSP system and MFA?
4.
What is QUOTA and no QUOTA?
5.
What is categories numbers?
6.
Describe Canada non-QUOTA and
USA QUOTA categories numbers?
7.
Describe EEC garments
description
8.
Describe garments terms and
definitions
9.
What is L/C, back-to-back L/C,
invoice, FOB, C&F and CIF?
10. What
is swatch, ticket number, stitch & seam, linge, Godet and disposable
garments?
11. How
sample will make?
12. How
many components in shirt and trouser?
13. Show
the basic standard measurement of ladies and gents
14. Describe
garments making sequence
15. What
is grading?
16. Why
is bundling is necessary in cutting section?
17. How
will you calculate marker efficiency?
18. Describe
the constrain of marker making
19. Describe
computerized marker technique
20. Describe
the draw back of perforated marker, spirit duplicating and paint spray marker
technique
21. How
you will central fabric wastage outside the marker?
22. What
are the requirements of fabric spreading?
23. What
is straight and stepped lay?
24. How
many fabric packages are normally used in garments?
25. Why
manual spread are very popular in Bangladesh?
26. What
are the features of automatic fabric spreading?
27. What
are the methods of fabric cutting?
28. What
are the advantages of round knife, straight knife and band knife?
29. Why
die cutting, drill and notcher are used in garments cutting section?
30. What
are the drawbacks of water jets, laser beam cutting?
31. What
are the advantages of computerized cutting?
32. How
many types of interlining are used in garments?
33. What
are the conditions of fusing?
34. Describe
the types of fusing?
35. Hoe
many methods are available for resin coating?
36. Describe
high frequency fusing machine
37. What
is double & reverse fusing?
38. Why
temperature, pressure and time are controlled in fusing?
39. How
will you control the quality of garments?
40. Define
inspection loop.
41. What
are trimmings?
42. Mention
the list of sewing machine for producing shirt & trouser.
43. Calculate
the basic consumption of shirt & trouser.
44. What
is merchandising?
45. Mention
the responsibilities of a good merchandiser.
46. Define
style and fashion
47. What
are the factors favoring of fashion?
48. What
are the factors retarding of fashion?
49. Describe
importance of fashion designing in RMG sectors
50. Basic
concepts of designing, pattern making, marker making and garments manufacturing
51. Tools
of work measurement & time study and motion study
52. Historical
background of our garments industry
53. Tools
and machine used for garments manufacturing
54. Application
of computer in garments
55. Concepts
of merchandising in garments
56. Production
planning, controlling and production management in relation to garments
manufacturing
57. What
is quality and how to control the quality of garments?
58. Different
inspection systems used for inspecting raw-material, in-lime process and
finishing process
59. Brief
idea on CAD/CAM systems for garments manufacturing.
60. How
to prepare or make a report for industrial attachment?
61. Concept
of sewing machine and falts
62. What
do you understand by garments are washed?
63. What
types of garments are washed?
64. Why
garments are washed?
65. Give
a standard recipe of a normal wash
66. What
is the outlook of normal washed garments?
67. What
affect could be achieve by bleach wash?
68. What
is the role of stone during garments washing?
69. What
type of garments is bleaching washed?
70. What
is caustic wash?
71. What
is the role of temperature in garments washing?
72. What
is the stone wash?
73. Which type of stone is used during washing?
74. What
is enzyme wash?
75. Why
enzyme wash is costly?
76. What
are the special features of enzyme wash?
77. What
is back stain?
78. Why
back staining occurs?
79. What
is GSP?
80. What
is Quota and category?
81. What
is super white wash?
82. What
is garments dyeing?
83. What are the advantages of garments dyeing?
84. What
types of garments are dyed?
85. What
types of dyes are used in garments dyeing?
86. What
is the L/R range in garments dyeing?
87. How
much time needed to complete pretreatment & dyeing of a batch of a
garments?
88. What
is seam slippage?
89. What
are the sewing problems?
90. What
are the systems of garments inspection?
91. What
are the systems of fabric inspection?
92. What
is the production of a basic shirt/line/day?
93. What
is the production of a T-shirt /line/day?
94. What
is the production of a polo shirt /line/day?
95. How
many machines are used for shirt, trouser, T-shirt and polo shirt production
per line?
96. Name
some machines of a garments factory
97. Name
some machines of a garments washing plant
98. How
the garments factories are classified?
99. Name
of some sewing machine manufacturer
100.How many garments factories in
Bangladesh?
100.
How many garments buying
houses in Bangladesh?
101.
What is the export value of
RMG sector in last year?
102.
How many employees in garments
sector?
103.
What is the percentage of
female worker in RMG sector?
104.
Which are the major garments
importing countries from Bangladesh?
105.
What is the percentage of
local woven fabric consumption in RMG sector?
106.
What is the percentage of
local knit fabric consumption in RMG sector?
FABRIC MANUFACTURING TECHNOLOGY
1.
What is weaving?
2.
What do you mean by non-woven
fabrics?
3.
What is warp and weft?
4.
Explain drafting and denting
5.
What is winding?
6.
How winding is done?
7.
What are the objects of
winding?
8.
Name different types of
winding packages
9.
Give some example of parallel
and near parallel wound package
10. What
is the difference between direct and indirect drive?
11. Mention
the main difference between precession and non precision winding
12. What
is the necessity of yarn guides and tensioners?
13. Name the auxiliary functions in winding
14. What
is creeling?
15. What
is piecing?
16. What
do you mean by doffing?
17. Why
yarn clearer is used in winding?
18. What
do you mean by efficiency?
19. Why
lower efficiency occurs in winding section?
20. What
is the main difference between ordinary pirn
& automatic pirn?
21. Where
can we use the automatic shuttle and ordinary shuttle?
22. Why
warping is done?
23. What
do you mean by raping?
24. What
is the main difference between sectional warping and high speed warping?
25. Mention
the uses of sectional and high speed warping
26. What
do you mean by sizing?
27. Why
sizing is done?
28. What
is the importance of sizing?
29. Why
spun yarn cannot be used directly in weaving section?
30. Why
sizing of warp yarn is necessary?
31. Why
sizing of weft yarn is not done?
32. Name
different types of size ingredients
33. Why
lubricants or softener is used in sizing?
34. Why
antiseptics and hygroscopic agents are used in sizing?
35. What
is the effect of more size pick up?
36. What
problem will be seen if over drying in sizing process?
37. Why
multi cylinder drying is most widely used?
38. What
is the importance of immersion rollers and squeezing roller in sizing?
39. What
types of faults are usually seen in sizing?
40. What
are the disadvantages of sizing?
41. Name
different types of hand loom
42. How
do the handlooms operate?
43. What
is the main difference between power loom and modern loom?
44. What is the difference between shuttle loom
and shuttle less loom?
45. What
is primary motion?
46. What
is shedding and picking?
47. What
do you mean by beat up?
48. What
is secondary motion?
49. What
is the main difference between over pick and under pick?
50. What
do you mean by tertiary or auxiliary motion?
51. What
is the main difference between handloom and power loom?
52. What
do you mean by Hessian and sacking?
53. Why
7 wheels and 5 wheels take up is used?
54. Why more crimp is used in weft yarn?
55. What
is knitting?
56. What
is warp and weft knitting?
57. What
is circular and flat knitting?
58. What
is Wales and courses?
59. Write
the name of main/principle knitting elements
60. Write
the name of knitting elements?
61. What
are the differences between bearded needle and latch needle according to the
knitting action?
62. What
is compound needle?
63. Classify
the sinker according to their functions
64. What
is jack?
65. What
is needle loop and sinker loop?
66. What
is side limb?
67. What
is needle gauge?
68. What
is cam?
69. State
the classification of a cam
70. Write
the name of the different parts of a knitting cam
71. What
are the differences between miss cam and float cam?
72. What
is held loop, tuck loop on bearded needle?
73. Write
the name of basic structure of weft knitting and warp knitting
74. What
is single jersey structure and double jersey structure?
75. What
is the use of double-headed latch needle?
76. What is needle gaiting?
77. Which
points we are considered to represent a circular knitting m/c specification?
78. What
is sinker timing?
79. How
can we calculate the production in weight of a single jersey circular knitting
m/c and which parameters are needed to calculate this production?
80. What
is open top m/c?
81. State
the features of a plain knitted structure
82. What
is basic rib structure?
83. What
are the features of a rib knitted structure?
84. What
is 4-truck circular knitting m/c?
85. State
the features of a rib knitted structure
86. What
is needle timing?
87. What
is interlock fabric?
88. State
the main features of a purl knitting m/c
89. What
are the differences between fabric length m/c and garment length m/c?
90. State
the classification of warp knitting m/c
91. What
are the knitting elements of a Tricot and Raschel warp knitting m/c?
92. What
is lapping movement of a guide bar?
93. What
is flat knitting m/c?
94. What
are the differences between Tricot and Raschel warp knitting m/c?
95. Explain
the lapping diagram and chain notation
96. Write
the name of knitted fabric faults
97. What
is non-woven fabric?
98. Write
the different names of the production system of non woven fabric
99. What
do you mean by automation of knitting industry?
100.
What is multi axial fabric?
101.
Write the different names of
the production system of non woven fabric
102.
What are the end uses of multi
axial fabric?
103.
How can you increase the no.
of cam system of circular knitting m/c?
104.
State the importance of yarn friction
in knitting
105.
What is tightness factor?
106.
State the main features of the
following fabrics:
a.
Accordion fabric
b.
Single lacoste
c.
Double lacoste
d.
Jersey cord
e.
Milano rib etc
107.
What are the features of
automatic loom?
108.
In which loom we get highest
PPM and why?
109.
How many types of feeler?
110.
What are the different parts
of a shuttle and functions?
111.
How ways and why we can
pattern in weft way?
112.
What are the warp protector
motions?
113.
Why we use fork motion?
114.
Which type of fork motion is
better?
115.
When and why different types
of warp stop motions are used?
116.
What is jacquard shedding?
117.
Differ among SLSC, DLSC &
DLDC jacquard
118.
When open shed, centric shed
and fine pitch of cross borders jacquard shedding is used?
119.
What are the systems of
harness mounting?
120.
What are the methods of
increasing figuring capacity of jacquard shedding?
121.
When and why CBC broadloom is
used?
122.
On which fact’s cloth costing
are depend?
123.
How we can minimize cloth costing?
124.
What is break-even point?
125.
How can we increase profit
from cloth?
126.
What are the causes and remedies
of warp and weft breakage?
127.
What are the causes and
remedies of fabric faults?
128.
What are different types of
efficiency?
129.
How can we increase
efficiency?
130.
On which factors efficiency
depends?
131.
Give the classification of
loom
132.
What are the aims and objectives
of automatic weaving?
133.
Write the features of
automatic loom
134.
How can we produce different
types of woven design?
135.
Why it is necessary to use
feeler in automatic loom and what are their types?
136.
List the advantages of loom
winder
137.
What are the types of box motion?
138.
Write the purposes of weft
mixing motion
139.
Why it is necessary to use
warp protector motion?
140.
Differentiate between loose
and fast reed motion
141.
Draw the different types of
droppers
142.
Classify the jacquard loom
143.
What is the function of warp
stop motion?
144.
State the scope of jacquard
shedding mechanism
145.
What are the purposes of cross
border jacquard loom?
146.
Write the difference between
side weft fork and central weft fork motion
147.
What is the defect of
shedding?
148.
Find out the member of Neck
cords, Hooks and Needles in a 400’s DLDC jacquard?
149.
Define efficiency and over all
efficiency
150.
List the causes of warp
breakage
151.
What are the duties of a
weaver?
152.
Define Break Even Point and
margin of safety
153.
Classify the costs
154.
Define Laminate
155.
What are the methods of
lamination?
156.
Write the difference between
bonded and lamination
157.
What are the quality
requirements for foam backed garments?
158.
Define braiding
159.
Name the technical
difficulties in braid production
160.
Calculate the diameter of
braid produced from 14 strands of 45 Tex
161.
Mention the growing areas of
use of braid
162.
Classify the Textile Fabrics
163.
Give the typical
specifications of a belt
164.
What are the uses of belt?
165.
What do you understand by
swivel weaving?
166.
Write the purposes of swivel
weaving
167.
Define Geo-textiles
168.
What are the functions of Geo-textiles?
169.
How geo jute favors the growth
of vegetation?
170.
Define lappet weaving
171.
What are the common features
of Muslin fabric?
172.
Differentiate between
Swiss-Muslin and Anglo-Muslin fabric
173.
Name the kind of yarns used
for lace making. Also mention their properties
174.
Write down the uses of lace
175.
Give the types of nets
176.
How labels are produced?
177.
Define tape and webbing
178.
Which fibers are used for
medical textiles?
179.
Define and classify the toilet
fabrics
YARN MANUTACTURING TECHNOLOGY
1.
What fiber properties are considered
for spinning?
2.
What is typical micronaire
value of cotton fiber?
3.
What is Tex? Kilotex? Worsted
count?
4.
Define different count fiber?
5.
What is cleaning efficiency?
6.
What is chute feed system?
7.
Tell about lap hank and sliver
hank
8.
What is the usual draft and
doubling of cotton draw frame?
9.
What is tension draft?
10. Mention
some setting point of carding
11. What
are the typical production of card and draw frame?
12. What
is meant by DCP?
13. How
draft is calculated from gearing diagram?
14. What
is the function of barrow wheel?
15. How
production of carding and draw frame can be increased?
16. How
cotton is graded?
17. What
is auto leveler, open and close loop control?
18. What
is the draft of breaker card?
19. What
is dollop weight, ultimate?
20. What
is the production of jute breaker card?
21. Define
batching and Emulsion
22. Define: cotton count
Metric count
Tex
Denier
Worsted
Spyndle
23. Give
some example of Bast fiber and leaf fiber, mineral fiber & hairy fiber
24. Impact
of immature fiber in spinning and dyeing
25. How do you express the strength of fiber and
give its units
26. Variety
of cotton
27. Name
some cotton producing countries
28. Give
the properties of cotton fiber
·
Specific gravity
·
Strength
·
Fineness
·
Staple length
·
MR%
·
Melting point
·
Elongation
29. Difference
between carded and combed process
30. Differentiate
between mixing and blending
31. What
is SCI?
32. What
is BIAS, HVI & AFIS?
33. Necessity
of carding in yarn manufacturing process
34. Why
called:
·
Card is the heart of spinning
mill
·
Well carded is half spun
35. What
is pneumophil?
36. Principle
of tender carding, roller carding & stationary fold carding
37. In
revolving flat card where main carding action takes places?
38. Which
metal is used for carding?
39. Selection
of carding angle for different machine parts
40. How
fiber damage in card?
41. Causes
of nep formation in card
42. Different
types of hook formation in carding
43. Production
calculation of a carding m/c
44. Explain
‘Drafting causes irregularities whereas doubling minimizes irregularities’.
45. Define:
·
Break draft
·
Tension draft
·
Back zone draft
·
Front zone draft
·
Total draft
46. What
is periodic variation and Drafting wave?
47. How
does short fiber is controlled in Draw frame?
48. Different
forms of Drafting and their suitability
49. Function
of auto leveler in Draw frame
50. What
are the drafting forces?
51. Explain:
nip point, roller setting and drafting zone
52. Basic
composition of jute
53. Problem
associated with lignin
54. Different
jute grade
55. Types
of jute yarn
56. Composition
of Hessian and sacking
57. Difference
between Batch and batching
58. Ingredient
of emulsion and their function
59. What
are the defects of emulsion?
60. Oil
distribution in jute emulsion
61. Jute
card pinning
62. What
are staves?
63. Function
of tin cylinder, worker and striker
64. Explain:
·
Up striking
·
Down striking
·
Half circular
·
Full circular
65. Where
shell is used in jute processing?
66. What
is TM?
67. What
is the function of TCP?
68. What
is the range of noil% removal?
69. How
production of comber can be calculated?
70. What
is the comber input lap hank?
71. Mention
change wheel of simplex
72. How
noil% can be adjusted?
73. What
is the function of building motion in simplex?
74. What
is the difference between bobbin building and cop building?
75. What
are the common change wheels of Ring frame?
76. Tell
example production of comber, simplex & ring frame
77. What
is the function of index wheel?
78. How
production of ring frame can be calculated?
79. What
is twist angle and maximum value of it?
80. What
is OPS and how it is calculated?
81. What
is the OPS of 20, 30, 40, 60 Ne yarn?
82. What
is spacer?
83. Mention
typical draft of ring and simplex
84. Explain
“Twist cost money ”
85. What
is the nips/min and feed/nip of atypical comber?
86. What
is the function of gill pin in jute drawing?
87. What
is quality ratio?
88. What
is the usual count of jute sliver and yarn?
89. What
is lead?
90. What
do you mean by the term “slip draft”?
91. Briefly
mention silk spinning process
92. What
is hacking?
93. Mention
properties of different fibers
94. What
is traveler no?
95. What
is the traveler no for 20, 30 & 6o Ne yarn?
96. Mention
waste% of different stage of cotton processing
97. How
will you analyze spectrogram?
98. Production
of different processing machine
99. Prepare
a table for spin plan of cotton and jute
100.
What do you understand by the
color grade 21-2?
101.
Mention production of each
machine
102.
Mention draft of each machine
103.
Mention waste% of each machine
104.
Mention parameter (twist,
count etc ) of yarn manufacturing
105.
Discuss on auto leveler and
controller hardness
106.
What is open loop and close
loop control?
107.
What is ISO certification?
108.
What is GSP?
109.
What is statistical quality
control?
110.
What is Q95%, VL curve?
111.
What is the function of
Classimate, AFIS. HVI & Optical cleaner?
112.
What is the principle of EYC?
113.
What is the typical value of
S, L, T setting?
114.
What is Ring data and Sliver
data?
115.
What is meant by EXPERT
SYSTEM?
116.
Discussion on Uster Statistics
117.
What is MIS?
118.
Define terms OPS, Millitex,
spinning strangle
119.
Define terms Texturing, False
twist and two for one twister
120.
Mention flow chart from fiber
to dyed fabric
121.
What is the responsibility of
a production officer?
TEXTILE
TESTING AND QUALITY CONTROL
1. What is
quality, control, and quality control?
2. What is
product control & process control with example?
3. How can
govern quality control by Men, machine and material?
4. What is
moisture regain &Moisture content?
5. What is the
effect of RH% on the textile mills?
6. What is RH%?
7. Standard
testing atmospheric condition
8. What is the
importance of QC in textile sector?
9. Std moisture
regain of cotton, PES, Nylon, Jute & Silk
10. What is
correct invoice weight (CIW)?
11. What is
Hysteria’s effect?
12. What is
swelling?
13. Mention some
instrument involved to measure RH% & MR%
14. Meaning of
CSIRO: Common Wealth Scientific and Industrial Research Organization
15. What is
Tenacity? Average tenacity of cotton and jute fiber?
16. What is
breaking length and breaking extension?
17. What is
stress, strain, yield stress, yield strain and yield point?
18. What is
elasticity, plasticity?
19. Mention some
fiber strength testing instruments
20. What is fiber
fineness?
21. What is the
relation between maturity ratio and fiber fineness?
22. What types of
fiber are found on the basis of maturity?
23. Mention the
theoretical range of maturity ratio
24. What is count
(definition given Textile institute)?
25. What is
conditioned count?
26. What is the
difference between direct and indirect counting system?
27. Mention some
available count in direct and indirect system
28. Definition and relation of counting systems
29. Mention some
available instruments to measure the yarn count
30. What term is
used to express the fineness of fiber and yarn?
31. What is the
system used for the fineness of fiber?
32. What is
relation between yarn dia and count?
33. What is twist
and why twist is inserted?
34. What is s
twist and z twist?
35. What is the
relation between TPI and count?
36. What is the
effect of twist on fabric properties?
37. Mention some
name of instruments to measure the amount of twist in yarn
38. How can you
measure the fineness of fiber?
39. What is
sampling and objects of sampling?
40. What is
random and biased sampling?
41. Define drape
and drape co-efficient
42. Explain WI
43. How can you
improve crease resistance properties of a fabric?
44. Mention the
name of the methods of water repellency testing
45. What are the
points to be recommended for careful consideration in Bundesmann water
repellency testing?
46. What are the
expressions we use to measure textile irregularity?
47. What do you
understand by “Periodic Variation”?
48. What is the
principle of fabric thickness measurement?
49. What is the relationship
between crimp% & take up%?
50. What do you
mean by nep count?
51. Define the
term fabric stiffness, drape co-efficient, serviceability and water
permeability
52. Explain-
C.R.L, C.R.E & C.R.T.
53. What are the
properties to be considered for carpet grading?
54. What care
should be done in sizing process?
55. How can you
Asses the quality of a finished fabric?
56. Mention some
mechanical faults in weaving?
57. What are the
causes of loop length variation in weft knitting?
58. In place of
12kg of Hydrogen per oxide (35%)w/w , What would be the equivalent amount of
50% w/w ?
59. What do you
mean by total hardness of water and what is the standard hardness of dye-house
water?
60. How can you
determine the presence of starch in the fabric?
61. What do you
mean by EDTA?
62. Define cloth
cover factor.
63. What is the
relationship between the cloth cover & air permeability?
64. Explain TIV.
Where it is used?
65. What do you
mean by PPM?
66. Mention some
process problems due to water hardness.
67. Is there any
difference between air permeability & air porosity?
68. Define bending
length.
69. What do you
mean by yarn imperfection?
70. What do you
mean by +50% thick place or –50% thin place?
71. Mention some
uses of stroboscope & Tachometer.
72. Mention some
uses of variance length curves.
73. Define
tensile strength, tearing strength & bursting strength.
74. What are the
causes of shade variation in exhausted dyeing?
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