Spinning সেকশনের উপর ১২১ টি রেফারেন্স প্রশ্ন
1. What fiber properties are considered for spinning?
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?
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Great question list. But need answers.
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