300+ TOP Textile Technology MCQs and Answers

Textile Technology Multiple Choice Questions

1. What is the GSM (g/m²) of a square jammed plain cloth made from 20 tex cotton yarns of 0.17 mm diameter?

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A. 154
B. 164
C. 264
D. 364

Answer: B

2. Which one of the following statements is false?

A. Equally strong but more extensible yarn will lead to higher grab strength.
B. The grab strength of a fabric is higher than its strip strength.
C. Tear resistance of a fabric is only a fraction of its tensile resistance.
D. The grab strength of a fabric reduces as the fabric width increases.

Answer: D

3. If same yarn is used for both wrap and weft, maximum fabric thickness is

A. Three times of yarn diameter
B. Two times of yarn diameter
C. Four times of yarn diameter
D. Yarn diameter

Answer: A

4. Thermal resistance values of fabrics in an assembly are

A. Multiplicative
B. Substractive
C. Additive
D. Average

Answer: C

5. Shear stress vs. shear strain curve of a fabric shows

A. Linearity with hysteresis
B. Nonlinearity with hysteresis
C. Linearity without hysteresis
D. Nonlinearity with hysteresis

Answer: B

6. Self-twist spinning is most suitable for

A. Cotton
B. Jute
C. Flax
D. Wool

Answer: D

7. For same count, rotor yarn TM is

A. 2 times greater than that of ring yarn.
B. 10-15 % greater than ring yarn.
C. Same as ring yarn.
D. 10-15% lower than ring yarn.

Answer: B

8. In case of Mélange yarn production, with the increase of shade depth

A. Yarn quality deteriorates
B. Yarn quality remains same
C. Yarn quality improves
D. Yarn quality firstly improves and then deteriorates

Answer: A

9. Mercerization of a cotton fabric is carried out by

A. Sodium chloride
B. Sodium hypochlorite
C. Sodium hydroxide
D. Sodium chlorite

Answer: C

10. For a satin weave (warp face)

A. Picks/cm is greater than ends/cm.
B. Ends/cm is greater than picks/cm.
C. Ends/cm is equal to picks/cm.
D. Ends/cm is just less than picks/cm.

Answer: B

11. In ring spinning, what happens with the weight of traveller when the count goes finer

A. Increases
B. Remain constant
C. Decreases
D. None of the above

Answer: C

12. The function of ABC ring

A. Reduce yarn hairiness
B. Reduce yarn twist
C. Increase yarn twist
D. Control ballooning tension

Answer: D

13. Which one of the following machines have primary object as doubling and drafting?

A. Ring Doubler
B. Draw frame
C. Carding
D. Fly frame

Answer: B

14. In comber, tailing hooks are removed by

A. Bottom comb
B. Cylinder
C. Nipper
D. Top comb

Answer: D

15. Type of fluting employed for apron roller is

A. Hellical
B. Parallel
C. Knurled
D. Opposite hellical

Answer: C

16. Single preventer mechanism is employed in

A. Ring frame
B. Card
C. Simplex
D. Draw frame

Answer: D

17. Differential mechanism is employed in

A. Slasher sizing machine
B. Scutcher
C. Winch dyeing machine
D. Fly frame

Answer: D

18. Of the following machines which will occupy the last position in blowroom line

A. Bale plucker
B. ERM cleaner
C. Monocylinder opener
D. Step cleaner

Answer: B

19. Which of the following machines play major role in fiber individualisation?

A. Crighton opener
B. Card
C. Draw frame
D. Fly frame

Answer: B

20. Which of the following is the regulating length of a medium term auto levelling device?

A. 3 m
B. 3 mm
C. 3 cm
D. 10 cm

Answer: A

21. Pressure bar in draw frame is used to

A. Apply pressure to the front top roller.
B. Apply pressure to the middle top roller.
C. Control the long fibre movement.
D. Control the short fibre movement.

Answer: D

22. Yarn tension during winding is proportional to the

A. `(Yarn tex)^(2)`
B. `sqrt(Yarn tex)`
C. Yarn tex
D. ` (1)/(Yarn tex)`

Answer: C

23. A 3.5 crossing drum means there are

A. 1.75 turns in a double traverse
B. 3.5 turns in a double traverse
C. 7 turns in a double traverse
D. 10.5 turns in a double traverse

Answer: C

24. A loom is weaving the design of 1 up 2 down twill. If the loom is running at 240 rpm, the speed of tappet shaft will be

A. 60 rpm
B. 120 rpm
C. 80 rpm
D. 240 rpm

Answer: C

25. A Jacquard design is repeating on 20 cm along length and 12 cm along width. If the fabric has 30 ends and 24 picks per cm, the Jacquard capacity is

A. 240
B. 580
C. 360
D. 480

Answer: C

26. A loom of 500 cm width is running at 800 picks/min. The weft insertion rate of the loom is

A. 800 m/min
B. 4000 m/min
C. 500 m/min
D. 5000 m/min

Answer: B

27. On a Sulzer® projectile loom, the number of projectiles depends on

A. Projectile mass
B. Torsion-bar arrangement
C. Loom width
D. Projectile length

Answer: C

28. Which one of the following phenomena cannot be described by Poisson distribution

A. Number of warp breakage on a loom
B. Number of fabric defects / square meter
C. Number of fibres in the yarn cross-section
D. Strength of the warp yarn

Answer: D

29. If 1 Km of yarn produces 900 m fabric, the yarn crimp in the fabric is

A. 10%
B. 9%
C. 11.1%
D. 10.9%

Answer: C

30. Indigo is a

A. Vat dye
B. Cationic dye
C. Acid dye
D. Disperse dye

Answer: A

31. In case of air-vortex spinning

A. All fibres start from the centre of the yarn and run outside.
B. All fibres start from the surface of the yarn and run inside.
C. Core fibres are parallel and the sheath fibres are wrapped over the core fibres
D. Core fibres have a twist direction which is different from the sheath fibres

Answer: A

32. In comparison with the ring spun yarn, air-jet spun yarn is

A. Weaker, stiffer and harder
B. Stronger, softer and smoother
C. Weaker, bulkier and harsher
D. Stronger, hairier and evener

Answer: A

33. Feed per nip of comber is around

A. 2 mm
B. 6 mm
C. 12 mm
D. 18 mm

Answer: B

34. Self-cleaning action in a comber

A. Increases with batt weight
B. Decreases with batt weight
C. Does not change with batt weight
D. Decrease with fibre disorientation

Answer: A

35. Quality of combing is better in

A. Forward feed
B. Backward feed
C. Mixed feed
D. Differential feed

Answer: B

36. Which machine in the spinning line is termed as necessary evil for producing ring spun yarn?

A. Card
B. Comber
C. Ring frame
D. Speed frame

Answer: D

37. Dyeing of acrylic is carried out by using

A. Vat dye
B. Cationic dye
C. Acid dye
D. Disperse dye

Answer: B

38. Acid dyes are held on fabric by means of

A. Covalent bond
B. Vander wall force
C. Electrostatic force
D. Electromagnetic force

Answer: C

39. Sublimation transfer printing is most suitable for

A. Cotton
B. Polyster
C. Silk
D. Acrylic

Answer: B

40. For printing with reactive dye, most suitable thickener is

A. Sodium chloride
B. Sodium hypochlorite
C. Sodium chlorite
D. Sodium alginate

Answer: D

41. Bunch building is essential for

A. Shuttle changing looms
B. Cop changing looms
C. Drop box looms
D. Air jet looms

Answer: B

42. If there are 20 knots in 5 pounds of yarn, the count of yarn is

A. `”20^s”` Nec
B. `”5^s”` Nec
C. `”40^s”` Nec
D. `”4^s”` Nec

Answer: C

43. The number of threads in a lea is

A. 10
B. 80
C. 840
D. 7

Answer: B

44. When each succeeding coil of yarn is placed exactly upon the previously laid coil in a package, the defect is called

A. Ballooning
B. Stitching
C. Doubling
D. Ribboning

Answer: D

45. Which of the following is a negative shedding mechanism?

A. Barrel tappet
B. Climax dobby
C. Dobcross dobby
D. None of the above

Answer: A

46. State the instance for which early picking is most preferred

A. Weaving strong weft
B. Multiple box motion
C. Dobby shedding
D. Weaving weak weft

Answer: D

47. Strength of cotton increases with

A. Decrease in moisture content
B. Increase in moisture content
C. Increase in temperature
D. Decrease in relative humidity

Answer: B

48. Draft required for a ring frame processing `”60^s”` cotton yarn, from roving of `”2^s”` hank

A. 120
B. 60
C. 30
D. 2

Answer: C

49. Which one is true for centre weft fork motion?

A. Work for every pick
B. Work for odd number of picks only
C. Work for even number of picks only
D. None of the above

Answer: A

50. Tailing effect is a defect associated with

A. Mercerizing
B. Kier boiling
C. Gigger dyeing
D. Package dyeing

Answer: C

51. Which one of the following is the correct order in a DSC heating plot with increasing temperature?

A. Glass transition, crystallization, melting
B. Melting, glass transition, crystallization
C. Crystallization, glass transition, melting
D. Glass transition, melting, crystallization

Answer: A

52. Which one of the synthetic filament properties is not controlled by the drawing?

A. Orientation
B. Crystallinity
C. Birefringence
D. Molecular weight

Answer: D

53. Which one of the following materials has highest strength/weight ratio?

A. Steel
B. Nylon
C. Kevlar
D. Polyester

Answer: C

54. Ziegler-Natta catalyst is essential for the production of

A. Kevlar
B. Polypropylene
C. Acrylic
D. Cellulose triacetate

Answer: B

55. If d is the fibre diameter, air-flow rate through a plug of fibres is proportional to

A. `sqrt(d)`
B. d
C. `d^(2)`
D. `d^(3)`

Answer: C

56. For a square cut polyester staple fibre, length uniformity index is

A. 0.5
B. 0.5128
C. 0.5328
D. 1

Answer: D

57. INSTRON® tensile tester works on`INSTRON^(o.)`

A. CRL principle
B. CRE principle
C. CRT principle
D. CRS principle

Answer: B

58. As the time to beak increases

A. Yarn strength decreases
B. Yarn strength increase
C. Yarn strength does not change
D. Yarn strength first decreases and then increases

Answer: A

59. Most suitable test for parachute fabric is

A. Tensile strip strength
B. Bursting strength
C. Tearing strength
D. Tensile grab strength

Answer: B

60. Three verities of cotton fibres of 4.5, 5 and 4.0 micronaire values are blended in weight proportions of 30%, 20% and 50%, respectively. The average micronaire value of mixing is

A. 4.32
B. 4.35
C. 4.40
D. 4.34

Answer: A

61. Which one of these clothings is best suited in fire prone areas?

A. Wool
B. Cotton
C. Silk
D. Linen

Answer: A

62. Which of the following is the right concentration of sodium hydroxide (W/V) in cold mercerizing?

A. 3-7%
B. 7-9%
C. 18-22%
D. 30-34%

Answer: C

63. Which of the following packages can have parallel winding?

A. Ring cop
B. Flanged bobbin
C. Cone
D. Cheese

Answer: B

64. A card processing sea island cotton is reset to process Indian cotton, then the setting between cylinder and offer is to be made

A. Wider
B. Closer
C. Not altered
D. None of the above

Answer: C

65. The function of apron in drafting system is to

A. Control short fibers
B. Increase draft
C. Increase TPI
D. Decrease draft constant

Answer: A

66. Which of the following is a secondary property of textile fiber?

A. Fineness
B. Length
C. Strength
D. Weight

Answer: A

67. Which of the following machines make use of splicing?

A. Blendomat
B. Auto coner
C. Fly frame
D. Scutcher

Answer: B

68. Which of the following can be the break draft in a ring frame?

A. 1.2
B. 0.6
C. 0.8
D. 3.5

Answer: A

69. The shore hardness recommended for front top roller of ring frame is

A. 85º shore
B. 45º shore
C. 100º shore
D. 65º shore

Answer: D

70. Which of the following minimise channeling on top roller?

A. Lappet hook
B. ABC ring
C. Traversing roving guide
D. Hellically fluted roller

Answer: C

71. The process of supplying necessary moisture to textiles is known as

A. Weighting
B. Scouring
C. Conditioning
D. Tinting

Answer: C

72. The ratio of actual vapour pressure to the maximum vapour pressure, expressed as a percentage is called

A. Absolute humidity
B. Moisture regain
C. Relative humidity
D. Moisture content

Answer: C

73. Which one of the following is the standard regain of cotton?

A. 8.5
B. 1.5
C. 4
D. 13.5

Answer: A

74. Which of the following is a natural mineral fiber

A. Asbestos
B. Glass
C. Nylon 6
D. Aramid

Answer: A

75. The chemical used in the souring of cotton

A. Washing soda
B. Caustic potash
C. Caustic soda
D. Sulphuric acid

Answer: D

76. Turkey red oil is

A. Surface active substance
B. Sequestering agent
C. Bleaching agent
D. Anti mildew agent

Answer: A

77. Singeing removes

A. Protein fibers
B. Vegetable matter
C. Protruding fibers
D. Entangled yarns

Answer: C

78. Bleaching agent used in continuous bleaching process

A. Sodium hypochlorite
B. Sodium chlorite
C. Calcium hypochlorite
D. Hydrogen peroxide

Answer: D

79. The term stoving is associated with

A. Desizing
B. Burning away of protruding fibers
C. Burning of vegetable impurities
D. Bleaching with sulphur dioxide

Answer: D

80. Shrink resistant wool is prepared by

A. Carbonisation
B. Vulcanisation
C. Acetylation
D. Chlorination

Answer: D

81. The dividend for a standard 7 wheel take-up mechanism is

A. 10
B. 36
C. 1
D. 72

Answer: C

82. Which of the following holds good for a sectional warping machine?

A. Sizing and warping are done simultaneously
B. Sizing is done after warping
C. Pre sized warp is used in the feed package
D. Doubled yarn alone can be produced

Answer: C

83. Which of the following is the primary ingredient in size paste?

A. Weighting agent
B. Anti foaming agent
C. Wetting agent
D. Adhesive

Answer: D

84. Sow box is used in

A. Slaher sizing machine
B. Multiple box loom
C. Drop box looms
D. Pit looms

Answer: A

85. In sizing, poly vinyl alcohol is used as

A. Antiseptic
B. Anti-mildew agent
C. Humectant
D. Adhesive

Answer: D

86. What will happen in power loom, when the change wheel for seven wheel take-up motion is replaced with a bigger one?

A. Loom speed is increased
B. Loom production is decreased
C. Loom speed is decreased
D. Loom production is increased

Answer: B

87. The function of oscillating backrest is

A. To provide support for the weaver
B. To provide support for the weaver’s beam
C. To maintain uniform warp tension
D. Support the held from falling

Answer: C

88. If one bundle each of `”10^s, 20^s, 2/20^s”` and `”40^s”` cotton yarn are weighted, then

A. All of them weigh the same
B. `”10^s”` bundle is heavier
C. `”40^s”` bundle is heavier
D. `”2/20^s”` bundle is heavier

Answer: A

89. In English cotton system, as the count increases

A. Thickness of yarn increases
B. Thickness of yarn decreases
C. Thickness of yarn remains the same
D. None of the above

Answer: B

90. Which of the following is called the universal system?

A. English cotton
B. Tex
C. Denier
D. French cotton

Answer: B

91. Indigo is a natural dye of

A. Vegetable origin
B. Animal origin
C. Mineral origin
D. None of the above

Answer: A

92. Cellulose Xanthate is prepared using

A. Carbon di sulphide
B. Sulphur dioxide
C. Hydrogen sulphide
D. Sodium sulphoxylate formaldehyde

Answer: A

93. The function of alkali in the dyeing of procion dyes

A. Promote level dyeing
B. Dispersion of dye
C. Promote exhaustion of dye
D. Reacting dye with fiber

Answer: D

94. A yarn characterised by the presence of imperfections or irregularities which are introduced in it deliberately

A. Sewing thread
B. Warp yarn
C. Fancy yarn
D. Weft yarn

Answer: C

95. Which of the following package is associated with hank yarn?

A. Cop
B. Cone
C. Cheese
D. Bundle

Answer: D

96. Which of the following machine have prime influence on the removal of short fibers?

A. Hooper feeder
B. Mixing bale opener
C. Draw frame
D. Card

Answer: D

97. Which of the following is not an object of ring frame?

A. Twisting
B. Drafting
C. Opening
D. Winding

Answer: C

98. Which of the following machines exercise the maximum amount of draft?

A. Ring frame
B. Card
C. Draw frame
D. Fly frame

Answer: B

99. Which among the following can be the cause of crackers?

A. Excessive ballooning
B. Wider roller setting
C. Closer roller setting
D. Insufficient top roller pressure

Answer: C

100. In which of these process, fiber fineness have prime role in influencing yarn characteristic

A. Ring spinning
B. Air jet spinning
C. Rotor spinning
D. Friction spinning

Answer: C

101. Which of the following fibers has excellent elastic recovery?

A. Cotton
B. Polyester
C. Nylon
D. Viscose

Answer: C

102. Which of the following fibres has excellent crease resistant?

A. Cotton
B. Polyster
C. Nylon
D. Viscose

Answer: B

103. Birefringence of a fibre is the measure of

A. Dynamic modulus
B. Density
C. Orientation
D. Crystallinity

Answer: C

104. The presence of functional groups in a fibre can be best determined by

A. IR spectroscopy
B. NMR spectroscopy
C. Differential scanning calorimeter
D. X-ray spectroscopy

Answer: A

105. Analysis of fiber structure by means of diffraction of electromagnetic waves is more compatible with x-rays than with ordinary visible light because

A. X-rays has higher energy than ordinary light
B. X-rays has wave lengths smaller than ordinary light
C. It is easy to get picture or photographs with x-rays
D. Wave lengths are comparable with crystallite sizes of fibre

Answer: D

106. Electromagnetic waves used in NMR spectroscopy is

A. Ultra-violet rays
B. Radio waves
C. Gamma rays
D. Infra-red rays

Answer: B

107. The helix reversal is found in

A. Jute
B. Wool
C. Silk
D. Cotton

Answer: D

108. If initial modulus and moment of inertia of a fibre are denoted by E and I, respectively, the bending rigidity of the fibre is expressed as

A. E/I
B. I/E
C. EI²
D. EI

Answer: D

109. Which one of the following statements is wrong?

A. The density is same for both cotton and viscose
B. The degree of polymerization is same for both cotton and viscose
C. Both cotton and viscose are hydrophilic fibres
D. Both cotton and viscose are the cellulosic fibres

Answer: B

110. Which one of the following statements is correct with respect to a textile fibre?

A. It is transversely isotropic
B. The primary bond strength is weaker than secondary bond.
C. Essentially it is made of short chain molecules.
D. It is having very high density.

Answer: A

111. Choose correct alternative from the followings:

A. For cotton fiber, longer the fiber, finer it is
B. For cotton fiber, longer the fiber, coarser it is
C. For cotton fiber, longer the fiber, more non-uniformity it gets
D. None of the above combinations

Answer: A

112. The hollow space in cotton is known as:

A. Lumen
B. Stomas
C. Medulla
D. Pores

Answer: A

113. With an increase of moisture content, the strength of a Nylon filament

A. Increases
B. Decreases
C. First increases then decreases
D. First decreases then increases

Answer: B

114. Which one of the following statements is true?

A. Glass is 100% crystalline fibre.
B. Polypropylene is 100% amorphous fibre.
C. Cotton is 50% crystalline fibre.
D. Wool is 30% crystalline fibre.

Answer: D

115. Water acts as catalyst for the production of

A. Nylon 6
B. Acrylic
C. Viscose
D. Polyester

Answer: A

116. Which of the following fibre properties is not governed by its amorphous content?

A. Dye uptake
B. Moisture content
C. Extensibility
D. Friction

Answer: D

117. If the front top roller of a ring frame having diameter of 1 inch becomes eccentric, at what wave length of spectrogram do you expect a peak?

A. 8 cm
B. 2.54 cm
C. 4 cm
D. 1.27 cm

Answer: A

118. 8 slivers each with a CVm of 2.8% are fed to a draw frame. If the draw frame adds a CVm of 1%, what will be the CVm of ouput sliver?

A. 3.8%
B. 1.1%
C. 1.41%
D. 1.8%

Answer: C

119. Low strength mechanical properties are strongly correlated with

A. Fabric thermal comfort
B. Fabric drape
C. Fabric dimensional stability
D. Fabric handle

Answer: D

120. Which one of the following parameters has no influence on air permeability?

A. Fabric cover factor
B. Yarn twist density
C. Fabric stiffness
D. Fabric porosity

Answer: C

121. Which of the following is a unicellular fiber?

A. Silk
B. Jute
C. Ramie
D. Cotton

Answer: D

122. Schweitzer’s reagent is a mixture of copper hydroxide and

A. Acetic acid
B. Ammonia
C. Hydrochloric acid
D. Sodium chloride

Answer: B

123. Oxy cellulose is formed when cotton is boiled with concentrated

A. Hydrochloric acid
B. Sodium chloride
C. Nitric acid
D. Sulphuric acid

Answer: C

124. The process of stretching the fabric width wise to regain its original dimension is called

A. Tentering
B. Tendering
C. Stentering
D. None of the above

Answer: C

125. The protein present in wool is

A. Elastin
B. Keratin
C. Fibronectin
D. Kevlar

Answer: B

126. The process done to compensate for the loss occurred due to boiling-off

A. Mordanting
B. Weighting
C. Fixing
D. Sizing

Answer: B

127. The property of wool that helps it in carbonizing is

A. Resistance to alkali
B. Resistance to acids
C. Resistance high temperature
D. Resistance to cold weather

Answer: B

128. The species that yield mulberry silk is

A. Philosamia ricinis
B. Bombyx mori
C. Antheraea paphis
D. Antheraea assamia

Answer: B

129. Which of the following is used in the coagulating bath, for the spinning of viscose rayon?

A. Sulphuric acid
B. Acetic anhydride
C. Hydrochloric acid
D. Nitric acid

Answer: A

130. Monomer used in the preparation of nylon 6

A. Adipic acid
B. Caprolactum
C. Hexamethylene diamine
D. Terephthalic acid

Answer: B

131. The substance removed during degumming

A. Sericin
B. Fibroin
C. Natural colouring matters
D. Wool wax

Answer: A

132. Which of the following dyes is readily soluble in water?

A. Naphthol dyes
B. Reactive dyes
C. Disperse dyes
D. Sulphur dyes

Answer: B

133. Term scrooping is associated with

A. Shearing of wool
B. Dyeing with sulphur dyes
C. Treating wool with sulphuric acid
D. Treating silk with acetic acid

Answer: D

134. Which of the following holds good for card web?

A. Majority of the fibers are having trailing hooks
B. Majority of the fibers are having Leading hooks
C. Majority of the fibers are having double hooks
D. Majority of the fibers are having no hooks

Answer: A

135. Number of passages recommended between carding and ring spinning

A. Odd number
B. Even number
C. Two
D. None of the above

Answer: A

136. Which one of the following can be the TPI of `”40^s”` cotton warp yarn

A. 25
B. 14
C. 60
D. 40

Answer: A

137. In ring spun yarn

A. sheath and core are equally twisted
B. The core is more twisted than the sheath
C. The sheath is more twisted than core
D. None of the above

Answer: C

138. The speed of traveller is

A. Equal to the speed of the spindle
B. Always more than the speed of the spindle
C. Always less than the speed of the spindle
D. Seldom less than the speed of the spindle

Answer: C

139. In bobbin leading

A. Speed of bobbin increases with the progress of build
B. Speed of bobbin reduces with the progress of build
C. Speed of flyer reduces with the progress of build
D. Speed of flyer increases with progress of build

Answer: B

140. In which of the following process, the yarn is characterised by wrapper fibers

A. TFO
B. Ring spinning
C. Dref spinning
D. Rotor spinning

Answer: D

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