Yaa Interview Questions As Well As Answers For Yarn Manufacturing Job
Thursday 20 December 2018
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Viva Questions together with Answers for Yarn Manufacturing Job
Introduction:
This article is written for beginners who are interested to gain chore inwards yarn manufacturing industry. Yarn manufacturing is the pioneer manufacture inwards People's Republic of Bangladesh every bit good every bit South Asia. Though of late yarn marketplace seat is non passing expert time. Who attempt to teach chore inwards yarn production next questions together with answers volition live helpful for viva board.
Yarn Manufacturing Viva Questions together with Answers:
1. What is fiber?
Ans: Fiber or fibre is classes of materials that are continuous filaments or are inwards discrete elongated pieces, similar to lengths of thread. They are really of import inwards the biological scientific discipline of both plants together with animals, for asset tissues together.
2. What is textile fiber?
Ans: Textile fiber has some characteristics which differ betwixt fiber to Textile fiber. Textile fiber tin live spun into a yarn or made into a cloth past times diverse methods including weaving, knitting, braiding, felting, together with twisting. The essential requirements for fibers to live spun into yarn include a length of at to the lowest degree five millimeters, flexibility, cohesiveness, together with sufficient strength. Other of import properties include elasticity, fineness, uniformity, durability, together with luster.
3. What is yarn?
Ans: Yarn is a long continuous length of interlocked fibers, suitable for usage inwards the production of textiles, sewing, crocheting, knitting, weaving, embroidery, together with rope making.
4. Flow nautical chart of carded yarn manufacturing process.
Ans:
Fiber/Bale → Blow Room → Lap/Chute
↓
Lap/Chute → Carding → Sliver (Carded)
↓
Carded Sliver → Draw Frame → Sliver (Drawn)
↓
Drawn Sliver → Simplex → Rove
↓
Rove → Ring Frame → Yarn
↓
Winding
↓
Reeling
↓
Bundling
↓
Bailing
↓
Lap/Chute → Carding → Sliver (Carded)
↓
Carded Sliver → Draw Frame → Sliver (Drawn)
↓
Drawn Sliver → Simplex → Rove
↓
Rove → Ring Frame → Yarn
↓
Winding
↓
Reeling
↓
Bundling
↓
Bailing
5. Flow nautical chart of combed yarn manufacturing process.
Ans:
Fiber/Bale → Blow Room → Lap/Chute
↓
Lap/Chute → Carding → Sliver (Carded)
↓
Carded Sliver → Pre-Comb Drawing Frame → Sliver (Pre-Drawn)
↓
Sliver → Lap Frame → Lap
↓
Lap → Comber → Sliver
↓
Sliver → Post-Comb Drawing Frame → Sliver (Post-Drawn)
↓
Drawn Sliver → Simplex → Rove
↓
Rove → Ring Frame → Yarn
↓
Winding
↓
Reeling
↓
Bundling
↓
Bailing
↓
Lap/Chute → Carding → Sliver (Carded)
↓
Carded Sliver → Pre-Comb Drawing Frame → Sliver (Pre-Drawn)
↓
Sliver → Lap Frame → Lap
↓
Lap → Comber → Sliver
↓
Sliver → Post-Comb Drawing Frame → Sliver (Post-Drawn)
↓
Drawn Sliver → Simplex → Rove
↓
Rove → Ring Frame → Yarn
↓
Winding
↓
Reeling
↓
Bundling
↓
Bailing
6. What is the commencement process/ machine inwards yarn production?
Ans. Blow room.
7. What is the mo process/ machine inwards yarn production?
Ans. Carding machine.
8. What physical care for / machine is used subsequently carding?
Ans. Draw frame.
9. What physical care for is used subsequently depict frame?
Ans. Simplex.
10. What physical care for is used subsequently simplex?
Ans. Ring frame.
11. What is the production of blow room?
Ans. Lap.
12. What is the production of carding machine?
Ans. Sliver.
13. What is the production of depict frame?
Ans. Sliver/Drawing sliver
14. What is the production of simplex?
Ans. Roving.
15. What is the production of band frame?
Ans. Yarn.
16. 1 lb(pound) =?
Ans. 840 yds=1 Hank=0.4536 kg=453.6 gm=16 ounce(oz).
17. What is the input of blow room?
Ans. Bale.
18. What is the input of carding machine?
Ans. Lap/Now chute feed scheme is beingness used.
19. What is the input of combing?
Ans. Sliver lap together with number of doubling is commonly 20-24.
20. What is the input of simplex?
Ans. Drawn sliver, Sliver hank 0.12/0.14/0.16,etc.
21. What is the input of band frame?
Ans. Roving/Roving hank may live 0.75/0.80,etc.
22. What is fiber fineness?
Ans. Fineness is i of the most of import parameter determining the yarn character (Fine or Coarse).
20. How fineness is specified for cotton?
Ans. Fineness is specified past times micronaire value for cotton.
21. The maturity of cotton fiber is defined inwards price of the evolution of prison theater mobile telephone wall (Yes/no).
Ans. Yes.
22. Influenza A virus subtype H5N1 fully mature fibre has a good developed thick cell-wall (Yes/no).
Ans. Yes.
23. An young fibre has a really sparse cell-wall (Yes/no).
Ans. Yes.
24. In mature fibre, dye absorption is high (yes/no)
Ans. Yes
25. In young fibre, dye absorption is depression (yes/no).
Ans. Yes
26. What is staple length?
Ans. The average length of spinnable fibre is called staple length.
27. If staple length is increment together with thus yarn character is likewise increment (yes/no).
Ans. Yes
28. Toughness of fibre has a straight outcome on yarn together with fibre strength (yes/no).
Ans. Yes
29. If fibre strength is higher, together with thus yarn together with cloth strength is likewise higher (yes/ no).
Ans. Yes
30. Short fibres deteriorate the yarn strength together with uniformity (true/false).
Ans. True.
31. What is the minimum strength for a textile fibre?
Ans. Approximately half dozen CN/tex (about 6km breaking length)
32. What gain you lot know almost Presley index =?
Ans. Breaking charge inwards Ibs/Bundle weight inwards mg.
33. What is fibre elongation?
Ans. Elongation is specified every bit a pct of the starting length.
34. What is bale management?
Ans. Testing, sorting together with mixing bales according to the properties of fibre for producing specific expert character yarn at minimum toll is called bale management.
35. When bale mixing is done?
Ans. Before the blow room/Before the bales going into blow room.
36. What are the basic operations inwards the blow room?
Ans.
- Opening
- Cleaning
- Mixing & blending
- Even feed of stuff to the card.
Ans. Carding may live defined every bit the reduction of an entangled mass of fibre to a filmy spider web past times working them betwixt 2 closely spaced, relatively moving surface clothed amongst sudden wire points.
38. Objective of carding.
Ans.
- To opened upwards up the cotton fiber inwards to unmarried fibre state.
- To trim back the number of neps, brusk fibres.
- To create a thick untwisted rope of fibre called sliver.
Ans. True.
40. What are the primary objectives of depict frame?
Ans.
- Straightening & parallelization of fibres past times drafting & drawing.
- Minimization of irregularity past times doubling.
- Blending & mixing of fibres.
- To create a to a greater extent than uniform sliver of definite wt/yds.
Ans.
- Soft lap,
- Conical lap,
- Barrel shaped,
- Split lap,
- Ragged selvedge,
- Lap licking.
Ans.
14 oz contains = 1 yds,
1 oz contains = 1/14 yds,
16 oz or 1 lb contains = 16/14 yds
=16/14×840 hank=0.00136 hank
So hank of lap = 0.00136.
43. Find out the wt/yds of the lap when hank of the lap is 0.0014? Ans.
Weight of 0.0014×840 yds = 1 lbs or xvi oz
1.176 yds = xvi oz
1 yds = 16/ 1.176 oz = 13.6 oz
So weight of lap = 13. half dozen oz/yds
Weight of 0.0014×840 yds = 1 lbs or xvi oz
1.176 yds = xvi oz
1 yds = 16/ 1.176 oz = 13.6 oz
So weight of lap = 13. half dozen oz/yds
44. For cotton, higher the count, finer the yarn (yes/no). Ans. Yes
45. For jute, lower the count, finer the yarn (yes/ no).
Ans. Yes.
46. What is the mention of combing waste?
Ans. Noils.
47. What is the pregnant of TPI?
Ans. Turns per Inch/Twist per inch
48. What is the band frame wastage?
Ans. Pnewmafil, banda, sweep, difficult waste.
49. What is roving?
Ans. Influenza A virus subtype H5N1 roving is a continuous slightly twisted strand of fibres which has non received its concluding drawing for yarn. Roving hank=0.70 to 0.85, TPI=about 1.15
50. What are the faults of yarn?
Ans.
Ans.Yes
52. What is the pregnant of MIC?
Ans. Microgram per inch.
53. In straight scheme which i is fixed (mass/length)?
Ans. Mass
54. In indirect scheme which i is fixed (mass/length)?
Ans. Length
55. English linguistic communication count is denoted past times Ne (yas/no)?
Ans. Yes.
56. Metric count is denoted past times Nm(yes/no)?
Ans. Yes
57. Sliver together with roving count is expressed past times hank(yes/no)?
Ans. Yes
58. In spinning mill, upwards to roving the count value is expressed past times hank together with thus count (true/false)?
Ans. True
59. The shape of yarn transcend circular due to twist (yas/no)?
Ans. Yas
60. Name the types of fiber?
Ans. Normal fiber, sparse walled fiber, Dead fibers .
61. How tin you lot limited fiber fineness?
Ans. Weight per unit of measurement length.
62. What is stress?
Ans. Stress is the ratio betwixt the applied strength together with cross sectional expanse of the specimen,
Stress = applied force/ cross sectional expanse = F/A.
Unit of stress is N/m2, dyne/cm2, which is likewise called Pascal (Pa).
63. What is tenacity?
Ans. The tenacity of a fibre is the mass stress at break.
Unit – gm/tex,
Tenacity = breaking charge / mass stress or linear density,
Linear density = mass/unit length.
64. What is tensile strength?
Ans. Tensile strength = strength required to interruption the specimen/ cross sectional expanse
65. What is yield point?
Ans. The dot upwards to which, a stuff contains its elasticity is called yield point.
66. What are the basic textile materials?
Ans.
67. More fibre drawing produces to a greater extent than brusk fiber & resulted weak yarn (yes/no).
45. For jute, lower the count, finer the yarn (yes/ no).
Ans. Yes.
46. What is the mention of combing waste?
Ans. Noils.
47. What is the pregnant of TPI?
Ans. Turns per Inch/Twist per inch
48. What is the band frame wastage?
Ans. Pnewmafil, banda, sweep, difficult waste.
49. What is roving?
Ans. Influenza A virus subtype H5N1 roving is a continuous slightly twisted strand of fibres which has non received its concluding drawing for yarn. Roving hank=0.70 to 0.85, TPI=about 1.15
50. What are the faults of yarn?
Ans.
- Irregular yarn
- Thick & sparse places
- Slubs
- Nepped yarn
- Spinners double
- Crackers
- Bad piecing
- Hairiness
- Soft yarn
- Hard & non elastic yarn
- Rough yarn
Ans.Yes
52. What is the pregnant of MIC?
Ans. Microgram per inch.
53. In straight scheme which i is fixed (mass/length)?
Ans. Mass
54. In indirect scheme which i is fixed (mass/length)?
Ans. Length
55. English linguistic communication count is denoted past times Ne (yas/no)?
Ans. Yes.
56. Metric count is denoted past times Nm(yes/no)?
Ans. Yes
57. Sliver together with roving count is expressed past times hank(yes/no)?
Ans. Yes
58. In spinning mill, upwards to roving the count value is expressed past times hank together with thus count (true/false)?
Ans. True
59. The shape of yarn transcend circular due to twist (yas/no)?
Ans. Yas
60. Name the types of fiber?
Ans. Normal fiber, sparse walled fiber, Dead fibers .
61. How tin you lot limited fiber fineness?
Ans. Weight per unit of measurement length.
62. What is stress?
Ans. Stress is the ratio betwixt the applied strength together with cross sectional expanse of the specimen,
Stress = applied force/ cross sectional expanse = F/A.
Unit of stress is N/m2, dyne/cm2, which is likewise called Pascal (Pa).
63. What is tenacity?
Ans. The tenacity of a fibre is the mass stress at break.
Unit – gm/tex,
Tenacity = breaking charge / mass stress or linear density,
Linear density = mass/unit length.
64. What is tensile strength?
Ans. Tensile strength = strength required to interruption the specimen/ cross sectional expanse
65. What is yield point?
Ans. The dot upwards to which, a stuff contains its elasticity is called yield point.
66. What are the basic textile materials?
Ans.
Fiber
↓
Yarn
↓
Grey cloth
↓
Finished cloth
↓
End production
↓
Yarn
↓
Grey cloth
↓
Finished cloth
↓
End production
67. More fibre drawing produces to a greater extent than brusk fiber & resulted weak yarn (yes/no).
Ans. Yes
68. What is twist? Ans. Twist is the spirality of bundle of fibres/ filaments.
69. Write downwards the types of yarn twist.
Ans.
Ans. True
71. Write downwards the wet find of cotton fiber fibre?
Ans. 8.5%
72. What is IPI?
Ans. It indicates yarns thick places, sparse places together with slubs.
73. What is count?
Ans. Count is a numerical facial expression which expresses /indicates coarseness or fineness of yarn.
Or, count is a number indicating the mass per unit of measurement length or the length per unit of measurement mass of yarn.
74. Different types of measurement.
Ans.
1 yard = 0.9144 m
1 m =1.0936 yards=7000 grain
1kg = 2.204 lbs,
1lbs(pound) = 453 .6gm = 7000 grains
1gm =15.43 grains
16 oz = 1 lb(pound)
36 inch = 1 yard
2.54 cm = 1 inch
1 Hank=840 yards=1 pound
69. Write downwards the types of yarn twist.
Ans.
- “z” or clock wise &
- “S” or anti clock wise twist.
Ans. True
71. Write downwards the wet find of cotton fiber fibre?
Ans. 8.5%
72. What is IPI?
Ans. It indicates yarns thick places, sparse places together with slubs.
73. What is count?
Ans. Count is a numerical facial expression which expresses /indicates coarseness or fineness of yarn.
Or, count is a number indicating the mass per unit of measurement length or the length per unit of measurement mass of yarn.
74. Different types of measurement.
Ans.
1 yard = 0.9144 m
1 m =1.0936 yards=7000 grain
1kg = 2.204 lbs,
1lbs(pound) = 453 .6gm = 7000 grains
1gm =15.43 grains
16 oz = 1 lb(pound)
36 inch = 1 yard
2.54 cm = 1 inch
1 Hank=840 yards=1 pound
75. What is yarn twist? Ans. The spiral disposition of the components of thread which is commonly the final result of relative rotation of the 2 ends is called yarn twist.
76. Rotor yarn is “s” twisted (yes/no).
Ans. Yes
77. Ring physical care for yarn is “z” twisted (yes/no).
Ans. Yes
78. What is strain?
Ans. Strain = elongation / initial length
79. What is the unit of measurement of Strain?
Ans. No unit.
80. What is the pregnant of CSP?
Ans.
Count Strength Product
CSP= Count × Strength
81. If yarn is regular together with thus CSP is higher (yes/no).
Ans. Yes
82. Different relations.
Ans.
Ans: (a)dropping-II, (b)flat strips of coarse count, (c)Floor sweeping-II, (d)dust etc.
84. HVI(high book instrument) is a really of import m/c of Q.C lab inwards spinning mill.(yes/no)
Ans. Yes
85. What tests are done past times HVI m/c?
Ans. (a)fineness, (b)trash, (c)length, (d)strength, (e)Color.
86. How tin you lot decide yarn count inwards English linguistic communication system?
Ans.
Count (Ne) =length(yds)/length × weight unit/weight inwards gm
= (120yds/840yds) × (1lbs or 453.6gm/weight inwards gm)
=64.8/Weight inwards gm
87. Write downwards the mention of count of straight system?
Ans. Txe,K tex,D tex,Mili tex,Denier,lb/spyndle, Woolen.
88. What gain you lot hateful past times i lea?
Ans. One lea=120 yds.
89. What gain you lot hateful past times WIRA?
Ans. Wool International Research Association.
90. Write downwards the total pregnant of some institution?
Ans.
Ans. Yes
92. Name the lastly m/c of blow room?
Ans. Scutcher
93. What is the pregnant of CV%?
Ans. Coefficient of variation percentage.
94. Where sliver is collected together with which form?
Ans. In tin together with coiler form.
95. In band frame where yarn is collected?
Ans. Bobbin
96. Name the modern cone winding machine?
Ans. Auto-coner machine/Savio orion
97. Cotton fiber is dissolved amongst 70% H2SO4 (yes/no)?
Ans. Yes
98.All yarn of band processing is Z-twist together with rotor yarn is S-twist.(yes/no)?
Ans. Yes
99. Where flyer is used inwards a spinning mill?
Ans. Simplex m/c.
100. What is spinning?
Ans. The physical care for past times which yarn is made from fiber.
101. What is the raw stuff inwards spinning?
Ans. Fiber
102. What is millionaire value?
Ans. Micro gram per inch.
103. Write downwards the classification of fiber?
Ans. (i) natural, (II) Man made fiber.
104. Different betwixt cotton fiber together with viscose?
Ans.
Cotton = Natural fiber, strength increment inwards wet condition.
Viscose = Man made fiber, strength decrease inwards nosotros condition.
105. What is the pregnant of AFIS?
Ans. Advanced fiber data system.
106. What is the ratio betwixt length together with width of fiber?
Ans. 1000:1
107. Twist together with twist management of yarn affects the cloth structure(True/false)?
Ans. True
108. What is UR?
Ans. UR = uniformity ratio =(50% Spun length/2.5% bridge length)×100
109. Write downwards the scheme of yarn count measurement?
Ans.
Ans. Length shorter than 0.5 inch or 12.8mm.
111. Why yarn training is needed?
Ans. To increment weaving efficiency.
112. What is drafting?
Ans. The physical care for of increasing the length per unit of measurement weight of slivers.
113. What is drawing?
Ans. It is the regular together with uniform elongation of the sliver to arrive light.
114. What is doubling?
Ans. The physical care for of combining several sliver information one.
115. Which i is best ,combed yarn or carded yarn?
Ans. Combed yarn.
116. Roving is current of air into the bobbin(yes/no) ?
Ans. Yes.
117. Write downwards the other mention of simplex?
Ans. (I)Speed frame, (II)Fly frame, (III)Roving frame.
118. Some meaning-
Ans.
Ans. (I)Tension variation, (II) irregular roving.
120. Write downwards the 3 types of flyer?
Ans. (I) Spindle mounted flyer,(II) superlative mounted flyer,(III) unopen mounted flyer.
121. What is the backbone of the globe textile trade?
Ans. Cotton.
122. Silk fiber readily absorbs H2O (yes/no)?
Ans. Yes
123. Jute institute have got high CO2 assimilation charge per unit of measurement (yes/no)?
Ans. Yes
124. What is the output of comber machine?
Ans. Combed sliver.
125. What is the output of the band frame?
Ans. Yarn inwards bobbin form.
126. What is the commencement performance inwards blow room?
Ans. Opening
127. What is yarn?
Ans. It is an assemblage of fibers twisted or set together to shape continuous strand suitable for usage In weaving, knitting etc.
128. Manmade fiber are hydrophobic inwards nature(yes/no)?
Ans. Yes.
129. Finer fiber create stronger yarn(yes/no)?
Ans. Yes
130. Write downwards the forms of manmade fiber?
Ans. (I) Filament, (II) Filament tow, (III)staple.
131. What is the manmade cellulose fiber?
Ans. Viscose.
132. Write some mention of natural cellulose fiber?
Ans. Cotton, flax, jute, hemp.
133. What is bi-component fiber?
Ans. Bi-component fibers are synthetic fibers which fibers filament contains 2 types of polymer.
134. What is bi- constituent yarn?
Ans. Influenza A virus subtype H5N1 yarn having 2 unlike staple fiber.
135. If H-bond acquaint inwards fiber together with thus fiber gets to a greater extent than strength(yes/no)?
Ans. Yes.
136. What is the length width ratio of cotton?
Ans. 1:350 to 1:6000
137. In staple/spun yarn twist is must(yes/no)?
Ans. Yes
138. Cotton is dissolved into 70% H2SO4(yes/no)?
Ans. Yes
139. Viscose is dissolved into 35% H2SO4(yes/no)?
Ans. Yes
140. Nylon is dissolved into 20% HCL/phenol(yes/no)?
Ans. Yes
141. Polyester is dissolved into 100% nitro benzene at 100 ℃(yes/no)?
Ans. Yes.
142. Burning aroma of cotton fiber is similar every bit burning paper(yes/no)?
Ans. Yes.
143. What is lint together with linters?
Ans. Then cotton fiber which are teach subsequently commencement fourth dimension ginning to seeds cotton fiber is called lint together with for mo fourth dimension ginning of cotton fiber is called linters.
144. What is blow room?
Ans. The department or line of piece of job where the compressed bale are converted into uniform lap of detail length or made suitable for carding past times opening, blending or mixing.
145. What is MR% of jute?
Ans. 13.75
146. What is MR% of viscose together with silk?
Ans. 11.0
147. What is MC % of cotton?
Ans. 7.834
148. What is MR% of wool?
Ans. 16.0
149. What is MR% of nylon?
Ans. 4.0
150. What is MR% of polyester?
Ans. 0.4
151. What are the long staple fiber?
Ans. Jute, wool, flax, hemp.
152. How fiber is form?
Ans.
153. What are the requirement of cloth construction?
Ans. (I)EPI,(II)PPI, (III)Warp count, (IV)Weft count.
154. What are the factors that decide the yarn properties?
Ans. Fiber properties, fiber arrangement, twist per inch.
155. What is heart spun yarn?
Ans. It is a continuous filament polyester heart wrapped inwards cotton fiber fiber.
156. Write downwards the primary purpose of carding machine?
Ans.(I)Doffer, (II)cylinder, (III)taker-in.
157. What is swelling?
Ans. The alter inwards dimension due to absorbing H2O or wet of whatever textile stuff is termed every bit swelling.
Swelling=(Swollen dimension-Dry dimension)/Dry dimension
158. Which countries cotton fiber is the best cotton fiber inwards the world?
Ans. Mishor.
159. What is the botanical mention of cotton?
Ans. Goosypium Herbacum, Goosypium Hirsutum.
160. What is ginning?
Ans. The physical care for past times which seeds together with cottons are separated from seeds cotton fiber is called Ginning.
161. How much trash% inwards cotton?
Ans. Generally 1% to 10%.
162. What is blow room waste?
Ans. Dropping-II,Dust,filter waste.
163. What is carding waste?
Ans. Dropping-I, Tacker inwards waste,Flat strip, motes & flies, sliver waste matter
164. What is depict frame waste?
Ans. Sliver wastage.
165. What is the simplex wastage?
Ans. Sliver wastage, roving wastage.
166. What is the band frame wastage?
Ans. Pneumafil, difficult waste, bonda waste, etc.
167. What is the comber wastage together with waste matter %?
Ans. Noils,(12-18)%.
168. What is cleaning efficiency inwards blow room?
Ans. CE% =( trash cotton fiber - trash inwards lap/trash inwards cotton fiber )× 100
169. Step cleaner m/c is placed at 45 story angle (yes/no)/
Ans. Yes.
170. Production of carding m/c?
Ans. Production = (Doffer speed × Doffer dia × Î )/36 (yds/min)
171. What is model length?
Ans. It is the length of grouping of fibers where the most number of fibers have got equal length.
172. What is spun length?
Ans. It is the term past times which nosotros tin determined the % of fiber length inwards illustration of cotton, wool etc.
173. What is staple length?
Ans. The average length of spinable fiber is called staple length.
** staple length = 0.91 × effective length(U.S.A upland cotton)
174. What is effective length?
Ans. It is the term defined every bit the length of the primary volume of the longer fiber.
175. How the sum of twist is expressed?
Ans.
Ans.
Mass stress = Applied forse/linear density
Unit = CN/tex , gm/tex
177. What is elastic recovery?
Ans. Elastic recovery = Elastic extension/total extension.
178. What is the modern testing equipment for spinning mill?
Ans.
Ans. Fineness should live decreased.
180. What is pitch?
Ans. The distance betwixt adjustment spindles.
181. What is the maximum count to live create inwards rotor m/c together with band m/c inwards spinning?
Ans.
Rotor m/c = non possible to create to a greater extent than than 40s count.
Ring m/c = it is possible to create almost 300s count.
182. What is the feed stuff inwards band together with rotor m/c?
Ans.
Ring m/c = roving
Rotor m/c = drawing sliver.
183.What is tex?
Ans. Count is the tex scheme inwards the weight inwards grams of 1000m or 1km of yarn.
184. How many types of depict frame ?
Ans. (I)Breaker depict frame, (II)finisher depict frame.
185. What is the output of winding?
Ans. Yarn inwards cone form.
186. Natural fibres are hydrophilic inwards nature? (Yes/No)
Ans. Yes.
187.What is the types of waste matter inwards a spinning mill?
Ans: (i) useable waste matter (ii) unusable waste.
188. The flyer is the essential purpose of speed frame(yes/no)?
Ans. Yes
189.What is neps?
Ans. Entanglement protruding fibres or entangled mass of fibres.
190. Write downwards the some mention of yarn testing machine.
Ans.
Ans: (a)lap waste,(b) sliver waste,(c)roving waste,(d)bonda waste,(e) pneumafil waste matter .
192. What is fiber migration?
Ans. It agency fiber distribution into the yarn.
193. Number of fibres inwards the yarn cross-section?
Ans. 60-70
194. What is the measure staple length of cotton fiber fibre?
Ans. Generally 0.5 inch to 2.5 inch.
195. Write some yarn faults which are to a greater extent than oft than non shown?
Ans. (I)Thick place, (II) Thin place, (III) Neps, (IV) slub, (V) Hairiness.
196. How many course of report or sectionalization of yarn preparation?
Ans. (I) Warp yarn preparation, (II) Weft yarn preparation.
197. What are the classes of winding machine for parcel of yarn?
Ans. (I) pirn winding m/c, (II) cop winding m/c, (III) spol winding m/c, (IV) Cheese winding m/c, (V) cone winding m/c.
198. What are the activeness of blow room?
Ans.
Ans. The wavy shape of thread/yarn is called crimp.
200. Total Draft =?
Ans. Total draft = BD×MD×FD
BD=Back draft
MD=Middle draft
FD=Front draft
You tin likewise like:
76. Rotor yarn is “s” twisted (yes/no).
Ans. Yes
77. Ring physical care for yarn is “z” twisted (yes/no).
Ans. Yes
78. What is strain?
Ans. Strain = elongation / initial length
79. What is the unit of measurement of Strain?
Ans. No unit.
80. What is the pregnant of CSP?
Ans.
Count Strength Product
CSP= Count × Strength
81. If yarn is regular together with thus CSP is higher (yes/no).
Ans. Yes
82. Different relations.
Ans.
- Denier = ix × Tex
- Ne × Denier = 5315
- Tex × Ne = 590.6
- Tex × Metric = G
- Denier × Metric = 9000
Ans: (a)dropping-II, (b)flat strips of coarse count, (c)Floor sweeping-II, (d)dust etc.
84. HVI(high book instrument) is a really of import m/c of Q.C lab inwards spinning mill.(yes/no)
Ans. Yes
85. What tests are done past times HVI m/c?
Ans. (a)fineness, (b)trash, (c)length, (d)strength, (e)Color.
86. How tin you lot decide yarn count inwards English linguistic communication system?
Ans.
Count (Ne) =length(yds)/length × weight unit/weight inwards gm
= (120yds/840yds) × (1lbs or 453.6gm/weight inwards gm)
=64.8/Weight inwards gm
87. Write downwards the mention of count of straight system?
Ans. Txe,K tex,D tex,Mili tex,Denier,lb/spyndle, Woolen.
88. What gain you lot hateful past times i lea?
Ans. One lea=120 yds.
89. What gain you lot hateful past times WIRA?
Ans. Wool International Research Association.
90. Write downwards the total pregnant of some institution?
Ans.
- BSTI = People's Republic of Bangladesh measure together with testing institution.
- ISO = International organisation for standardization.
- BS = British measure
- AQL = Acceptable character level.
- BCIRA = British cotton fiber industries enquiry association.
- ITET= Institute of textile engineers together with technologist.
- AAMA=American wearing clothing manufacturer association.
- AAQC=American association of character control.
Ans. Yes
92. Name the lastly m/c of blow room?
Ans. Scutcher
93. What is the pregnant of CV%?
Ans. Coefficient of variation percentage.
94. Where sliver is collected together with which form?
Ans. In tin together with coiler form.
95. In band frame where yarn is collected?
Ans. Bobbin
96. Name the modern cone winding machine?
Ans. Auto-coner machine/Savio orion
97. Cotton fiber is dissolved amongst 70% H2SO4 (yes/no)?
Ans. Yes
98.All yarn of band processing is Z-twist together with rotor yarn is S-twist.(yes/no)?
Ans. Yes
99. Where flyer is used inwards a spinning mill?
Ans. Simplex m/c.
100. What is spinning?
Ans. The physical care for past times which yarn is made from fiber.
101. What is the raw stuff inwards spinning?
Ans. Fiber
102. What is millionaire value?
Ans. Micro gram per inch.
103. Write downwards the classification of fiber?
Ans. (i) natural, (II) Man made fiber.
104. Different betwixt cotton fiber together with viscose?
Ans.
Cotton = Natural fiber, strength increment inwards wet condition.
Viscose = Man made fiber, strength decrease inwards nosotros condition.
105. What is the pregnant of AFIS?
Ans. Advanced fiber data system.
106. What is the ratio betwixt length together with width of fiber?
Ans. 1000:1
107. Twist together with twist management of yarn affects the cloth structure(True/false)?
Ans. True
108. What is UR?
Ans. UR = uniformity ratio =(50% Spun length/2.5% bridge length)×100
109. Write downwards the scheme of yarn count measurement?
Ans.
- Direct system: Tex,Denier.
- Indirect system: English, metric.
Ans. Length shorter than 0.5 inch or 12.8mm.
111. Why yarn training is needed?
Ans. To increment weaving efficiency.
112. What is drafting?
Ans. The physical care for of increasing the length per unit of measurement weight of slivers.
113. What is drawing?
Ans. It is the regular together with uniform elongation of the sliver to arrive light.
114. What is doubling?
Ans. The physical care for of combining several sliver information one.
115. Which i is best ,combed yarn or carded yarn?
Ans. Combed yarn.
116. Roving is current of air into the bobbin(yes/no) ?
Ans. Yes.
117. Write downwards the other mention of simplex?
Ans. (I)Speed frame, (II)Fly frame, (III)Roving frame.
118. Some meaning-
Ans.
- DCP=Draft alter pinion
- LCP= Lifter alter pinion
- PW = poker cycle
- TCP = Twist alter pinion
Ans. (I)Tension variation, (II) irregular roving.
120. Write downwards the 3 types of flyer?
Ans. (I) Spindle mounted flyer,(II) superlative mounted flyer,(III) unopen mounted flyer.
121. What is the backbone of the globe textile trade?
Ans. Cotton.
122. Silk fiber readily absorbs H2O (yes/no)?
Ans. Yes
123. Jute institute have got high CO2 assimilation charge per unit of measurement (yes/no)?
Ans. Yes
124. What is the output of comber machine?
Ans. Combed sliver.
125. What is the output of the band frame?
Ans. Yarn inwards bobbin form.
126. What is the commencement performance inwards blow room?
Ans. Opening
127. What is yarn?
Ans. It is an assemblage of fibers twisted or set together to shape continuous strand suitable for usage In weaving, knitting etc.
128. Manmade fiber are hydrophobic inwards nature(yes/no)?
Ans. Yes.
129. Finer fiber create stronger yarn(yes/no)?
Ans. Yes
130. Write downwards the forms of manmade fiber?
Ans. (I) Filament, (II) Filament tow, (III)staple.
131. What is the manmade cellulose fiber?
Ans. Viscose.
132. Write some mention of natural cellulose fiber?
Ans. Cotton, flax, jute, hemp.
133. What is bi-component fiber?
Ans. Bi-component fibers are synthetic fibers which fibers filament contains 2 types of polymer.
134. What is bi- constituent yarn?
Ans. Influenza A virus subtype H5N1 yarn having 2 unlike staple fiber.
135. If H-bond acquaint inwards fiber together with thus fiber gets to a greater extent than strength(yes/no)?
Ans. Yes.
136. What is the length width ratio of cotton?
Ans. 1:350 to 1:6000
137. In staple/spun yarn twist is must(yes/no)?
Ans. Yes
138. Cotton is dissolved into 70% H2SO4(yes/no)?
Ans. Yes
139. Viscose is dissolved into 35% H2SO4(yes/no)?
Ans. Yes
140. Nylon is dissolved into 20% HCL/phenol(yes/no)?
Ans. Yes
141. Polyester is dissolved into 100% nitro benzene at 100 ℃(yes/no)?
Ans. Yes.
142. Burning aroma of cotton fiber is similar every bit burning paper(yes/no)?
Ans. Yes.
143. What is lint together with linters?
Ans. Then cotton fiber which are teach subsequently commencement fourth dimension ginning to seeds cotton fiber is called lint together with for mo fourth dimension ginning of cotton fiber is called linters.
144. What is blow room?
Ans. The department or line of piece of job where the compressed bale are converted into uniform lap of detail length or made suitable for carding past times opening, blending or mixing.
145. What is MR% of jute?
Ans. 13.75
146. What is MR% of viscose together with silk?
Ans. 11.0
147. What is MC % of cotton?
Ans. 7.834
148. What is MR% of wool?
Ans. 16.0
149. What is MR% of nylon?
Ans. 4.0
150. What is MR% of polyester?
Ans. 0.4
151. What are the long staple fiber?
Ans. Jute, wool, flax, hemp.
152. How fiber is form?
Ans.
Elements
↓
Monomer/molecules/macromolecules
↓
Polymer chain
↓
Fibrils/micels
↓
Fiber
153. What are the requirement of cloth construction?
Ans. (I)EPI,(II)PPI, (III)Warp count, (IV)Weft count.
154. What are the factors that decide the yarn properties?
Ans. Fiber properties, fiber arrangement, twist per inch.
155. What is heart spun yarn?
Ans. It is a continuous filament polyester heart wrapped inwards cotton fiber fiber.
156. Write downwards the primary purpose of carding machine?
Ans.(I)Doffer, (II)cylinder, (III)taker-in.
157. What is swelling?
Ans. The alter inwards dimension due to absorbing H2O or wet of whatever textile stuff is termed every bit swelling.
Swelling=(Swollen dimension-Dry dimension)/Dry dimension
158. Which countries cotton fiber is the best cotton fiber inwards the world?
Ans. Mishor.
159. What is the botanical mention of cotton?
Ans. Goosypium Herbacum, Goosypium Hirsutum.
160. What is ginning?
Ans. The physical care for past times which seeds together with cottons are separated from seeds cotton fiber is called Ginning.
161. How much trash% inwards cotton?
Ans. Generally 1% to 10%.
162. What is blow room waste?
Ans. Dropping-II,Dust,filter waste.
163. What is carding waste?
Ans. Dropping-I, Tacker inwards waste,Flat strip, motes & flies, sliver waste matter
164. What is depict frame waste?
Ans. Sliver wastage.
165. What is the simplex wastage?
Ans. Sliver wastage, roving wastage.
166. What is the band frame wastage?
Ans. Pneumafil, difficult waste, bonda waste, etc.
167. What is the comber wastage together with waste matter %?
Ans. Noils,(12-18)%.
168. What is cleaning efficiency inwards blow room?
Ans. CE% =( trash cotton fiber - trash inwards lap/trash inwards cotton fiber )× 100
169. Step cleaner m/c is placed at 45 story angle (yes/no)/
Ans. Yes.
170. Production of carding m/c?
Ans. Production = (Doffer speed × Doffer dia × Î )/36 (yds/min)
171. What is model length?
Ans. It is the length of grouping of fibers where the most number of fibers have got equal length.
172. What is spun length?
Ans. It is the term past times which nosotros tin determined the % of fiber length inwards illustration of cotton, wool etc.
173. What is staple length?
Ans. The average length of spinable fiber is called staple length.
** staple length = 0.91 × effective length(U.S.A upland cotton)
174. What is effective length?
Ans. It is the term defined every bit the length of the primary volume of the longer fiber.
175. How the sum of twist is expressed?
Ans.
- Twist per inch(TPI) = yarn
- Twist per meter (TPM) = roving
- Twist per centimeter (TPCM)
Ans.
Mass stress = Applied forse/linear density
Unit = CN/tex , gm/tex
177. What is elastic recovery?
Ans. Elastic recovery = Elastic extension/total extension.
178. What is the modern testing equipment for spinning mill?
Ans.
- HVI(High book instrument)
- AFIS(Advance fiber data system)
- Shirley analyzer = trash%
- Moisture meter = MC%
- Moisture testing oven = MR%
Ans. Fineness should live decreased.
180. What is pitch?
Ans. The distance betwixt adjustment spindles.
181. What is the maximum count to live create inwards rotor m/c together with band m/c inwards spinning?
Ans.
Rotor m/c = non possible to create to a greater extent than than 40s count.
Ring m/c = it is possible to create almost 300s count.
182. What is the feed stuff inwards band together with rotor m/c?
Ans.
Ring m/c = roving
Rotor m/c = drawing sliver.
183.What is tex?
Ans. Count is the tex scheme inwards the weight inwards grams of 1000m or 1km of yarn.
184. How many types of depict frame ?
Ans. (I)Breaker depict frame, (II)finisher depict frame.
185. What is the output of winding?
Ans. Yarn inwards cone form.
186. Natural fibres are hydrophilic inwards nature? (Yes/No)
Ans. Yes.
187.What is the types of waste matter inwards a spinning mill?
Ans: (i) useable waste matter (ii) unusable waste.
188. The flyer is the essential purpose of speed frame(yes/no)?
Ans. Yes
189.What is neps?
Ans. Entanglement protruding fibres or entangled mass of fibres.
190. Write downwards the some mention of yarn testing machine.
Ans.
- Uster evenness tester
- Uster classimat
- Uster auto sorter.
Ans: (a)lap waste,(b) sliver waste,(c)roving waste,(d)bonda waste,(e) pneumafil waste matter .
192. What is fiber migration?
Ans. It agency fiber distribution into the yarn.
193. Number of fibres inwards the yarn cross-section?
Ans. 60-70
194. What is the measure staple length of cotton fiber fibre?
Ans. Generally 0.5 inch to 2.5 inch.
195. Write some yarn faults which are to a greater extent than oft than non shown?
Ans. (I)Thick place, (II) Thin place, (III) Neps, (IV) slub, (V) Hairiness.
196. How many course of report or sectionalization of yarn preparation?
Ans. (I) Warp yarn preparation, (II) Weft yarn preparation.
197. What are the classes of winding machine for parcel of yarn?
Ans. (I) pirn winding m/c, (II) cop winding m/c, (III) spol winding m/c, (IV) Cheese winding m/c, (V) cone winding m/c.
198. What are the activeness of blow room?
Ans.
- Action of opposing spikes
- Action of air electrical flow
- Action of beaters,
- Regulating activeness
Ans. The wavy shape of thread/yarn is called crimp.
200. Total Draft =?
Ans. Total draft = BD×MD×FD
BD=Back draft
MD=Middle draft
FD=Front draft
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