TEXTILE ENGINEERING AND FIBRE SCIENCE- PAGE 1
TEXTILE ENGINEERING AND FIBRE SCIENCE MCQs-PAGE 1
1:-In a comber, if the feeding takes place when the nippers are going backwards, it is called
A:-Asymmetric feed
B:-Reverse feed
C:-Forward feed
D:-None of these
Ans: B
2:-For a balanced twist two fold yarn, F/S twist ratio i.e. folding twist/spinning twist =
A:-2/3
B:-1/2
C:-1
D:-none
Ans: A
3:-Bobbin leading mechanism is preferred over flyer lead mechanism in roving frame because
A:-It helps to reduce the power requirements of the machine
B:-When roving breaks, it will trail and not unwind
C:-Both of these
D:-None of these
Ans: C
4:-The most suitable yarn out of followings to run at warping/weaving will be
A:-Tenacity = 22 gpt, Strength CV = 8%
B:-Tenacity = 22 gpt, Strength CV = 18%
C:-Tenacity = 20 gpt, Strength CV = 12%
D:-Tenacity = 20 gpt, Strength CV = 18%
Ans: A
5:-The wasted movement in a loom is maximum in case of
A:-Bottom closed shed
B:-Semi-open shed
C:-Open shed
D:-Centre closed shed
Ans: A
6:-In case of surface driven winding package, as the winding proceeds, angle of wind
A:-increases
B:-decreases
C:-remains constant
D:-first increases then decreases
Ans: C
7:-In a sizing process, if add-on % is 14% and size paste concentration is 16%, the Wet pick-up% would be
A:-88%
B:-115%
C:-16%
D:-50%
Ans: A
8:-Arrange 20 Ne, 20 Nm and 20 tex yarn in increasing order of fineness
A:-20 Ne, 20 Nm, 20 tex
B:-20 Nm, 20 Ne, 20 tex
C:-20 tex, 20 Ne, 20 Nm
D:-20 Ne, 20 tex, 20 Nm
Ans: B
9:-A loom is designed to run at 440 ppm. If the fabric width is 2.5 m and weft crimp on loom is 6%, calculate weft insertion rate in m/min
A:-1000 m/min
B:-583 m/min
C:-1166 m/min
D:-1760 m/min
Ans: C
10:-Which of the following knitted fabrics are visually different on face and back sides?
A:-Plain
B:-1 × 1 rib
C:-1 × 1 purl
D:-Interlock
Ans: A
11:-A cotton woven fabric has 25 ends per cm and 28 picks per cm. The tex of warp and weft yarn are 30 and 15 respectively. Calculate the gsm of the fabric, assuming warp and weft crimp to be 12% and 6% respectively.
A:-102
B:-110
C:-84
D:-129
Ans: D
12:-The maximum twist loss occurring in weft yarn on latest air jet weaving machine is
A:-14%
B:-24%
C:-4%
D:-none of these
Ans: A
13:-Under lap of warp knitted fabric is basically equivalent to
A:-Closed loop
B:-Sinker loop
C:-Needle loop
D:-Open loop
Ans: B
14:-The advantage/s of electronic jacquard over mechanical jacquard is/are
A:-High speed hook selection
B:-Elimination of cylinder, needles and design card
C:-Can be interfaced with CAD
D:-All of the these
Ans: D
15:-Tip to tip transfer of weft takes place in
A:-Airjet looms
B:-Projectile looms
C:-Gabler system
D:-Dewas system
Ans: D
16:-Thespeed of yarn in m/sec on a 30 rpm 30 inch diameter 20 gauge rib machine knitting 2 mm loop length is approximately
A:-1.8
B:-2
C:-3.6
D:-none of these
Ans: A
17:-The application of a series of stitches or stitch types to one or several thicknesses of the material is called
A:-Stitch
B:-Seam
C:-Sewing
D:-Looping
Ans: B
18:-The technique used to reduce or enlarge a given size pattern is called
A:-Patterning
B:-Grading
C:-Marking
D:-None of these
Ans: B
19:-According to British Standard classification of stitches, lockstitch comes under
A:-Class 200
B:-Class 300
C:-Class 400
D:-Class 500
Ans: B
20:-The part of the sewing machine that moves the fabric along by a predetermined amount between successive stitches is called
A:-Throat plate
B:-Presser foot
C:-Feed Dog
D:-Over edger
Ans: C
21:-____________ stitch is frequently used on long seams in trousers.
A:-Lock stitch
B:-Multi-thread chain stitch
C:-Hand stitch
D:-Over edge chain stitch
Ans: B
22:-Which of the following statements is correct?
A:-In a lock stitch machine, the bobbin thread operates at a much higher tension than the needle thread
B:-In a lock stitch machine, the needle thread operates at a much higher tension than the bobbin thread
C:-In a lock stitch machine, the needle thread and bobbin thread operates at a similar tension
D:-None of these
Ans: B
23:-Choose the correct set of statements :
P. Denim is a weft faced twill cloth made from dyed warp and grey weft yarn
Q. Leno weaves are made from doup and standard threads, which are made to cross each other between picks
R. Sateen is a warp faced fabric
S. Repp is a plain weave fabric with a prominently weft way rib made from two warps and two wefts
A:-P, R
B:-P, S
C:-Q, S
D:-Q, R
Ans: C
24:-The steep angled twill can be designed
A:-with ends per cm higher than picks per cm
B:-with upward steps more than outward steps
C:-none of these
D:-both of these
Ans: D
25:-Terry weaves belong to
A:-Warp pile structures
B:-Weft pile structures
C:-Carpet structures
D:-None of these
Ans: A
26:-__________ weaving comes under Extra weft figuring.
A:-Lappet
B:-Swivel
C:-Velveteen
D:-None of these
Ans: B
27:-The primary distinction between a design principle and a design element is
A:-that principles are abstract and elements are concrete
B:-that elements are abstract and principles are concrete
C:-that principles are two dimensional and elements are three dimensional
D:-there is no clear distinction
Ans: A
28:-Design and lifting plan look alike for
A:-straight draft
B:-skip draft
C:-pointed draft
D:-satin draft
Ans: A
29:-Which one is not a measure of Central Tendency
A:-Mean
B:-Mean deviation
C:-Median
D:-Mode
Ans: B
30:-Approximate moisture regain of acrylic fibre under standard conditions is
A:-4%
B:-0.4%
C:-2%
D:-12%
Ans: C
31:-Presence of immature fibre in a sample of cotton fibre will have following effect on passage of air in the sample
(at a constant pressure head)
A:-Increase air flow
B:-Decrease air flow
C:-No change of air flow
D:-First increase air flow
Ans: B
32:-Elmendorf tearing strength tester measures
A:-Energy loss
B:-Bursting load
C:-Breaking load
D:-None of these
Ans: A
33:-U%, as measured by Uster Evenness Tester is
A:-CV% of mass variation
B:-CV% of diameter variation
C:-PMD of mass variations
D:-None of these
Ans: C
34:-One Kilogram of a 20 tex yarn will have a length of
A:-10 yard
B:-5 Km
C:-10 Km
D:-50 Km
Ans: D
35:-Two roving with a CV of 8% each are fed into a spinning zone and if the spinning unit adds 8% CV, the CV% of output yarn will be approximately?
A:-9.8%
B:-16%
C:-8%
D:-none
Ans: A
36:-An eccentric top roller in a drafting system leads to
A:-Change in draft with oscillation of nip line
B:-Change in draft without oscillation of nip line
C:-Neither change in draft nor oscillation of nip line
D:-Oscillation of nip line only
Ans: D
37:-The angle of projectile weaving machine from front to back is
A:-8°
B:-6°
C:-5°
D:-4°
Ans: D
38:-Erection tools and equipments used for projectile weaving machine is/are
A:-Zero error spirit level
B:-Jack
C:-Zero error adjustable spirit level and jack
D:-None of these
Ans: C
39:-Total Base Number (TBN) which is important for deciding discard of oil (Lubricants) decreases due to
A:-Oxidation of oil
B:-Water contamination
C:-Both of these
D:-None of these
Ans: C
40:-Bearings are to be used to meet following requirements
(i) High speed rotation
(ii) Low vibrations
(iii) Low friction
Which one is best suited to meet above requirements?
A:-Deep groove ball bearing
B:-Thrust ball bearing
C:-Cylinder roller bearing
D:-Tapered roller bearing
Ans: A
41:-The major contributions to weight of a mature cotton fibre is due to
A:-Pectin
B:-Lumen
C:-Primary Wall
D:-Secondary Wall
Ans: D
42:-Pick the odd one out
A:-Polyester
B:-Viscose
C:-Nylon-6
D:-Nylon-66
Ans: B
43:-Medulla is generally found in
A:-Cotton
B:-Silk
C:-Fine wool
D:-Coarse wool
Ans: D
44:-Which of the following fibre with highest moisture regain will exhibit highest wet/dry tenacity?
A:-Cotton
B:-Lyocell
C:-Modal
D:-Viscose
Ans: B
45:-The highest elastic recovery is exhibited by
A:-Viscose
B:-Nomex
C:-Lycra
D:-Acrylic
Ans: C
46:-Polyacrylonitrile polymer can be produced by using
A:-Emulsion polymerization
B:-Condensation polymerization
C:-Ring opening polymerization
D:-Solution polymerization
Ans: D
47:-Density of cotton fibre is approximately
A:-1.52 denier
B:-1.52 g/tex
C:-1.52 kg/`m^3`
D:-1.52 g/`cm^3`
Ans: D
48:-Correct sequence of major steps for production of viscose fibre is
A:-Steeping-Shredding-Xanthation-Ageing-Dissolution-Ripening-Spinning
B:-Steeping-Dissolution-Xanthation-Shredding-Ageing-Ripening-Spinning
C:-Steeping-Shredding-Ageing-Xanthation-Dissolution-Ripening-Spinning
D:-Steeping-Xanthation-Shredding-Ageing-Dissolution-Ripening-Spinning
Ans: C
49:-Which combination is not correct?
A:-PET - Tg ≈ 79°C
B:-Viscose Rayon - Xc ≈ 35%
C:-Polypropylene - Disperse Dyes
D:-Nomex - Excellent Mechanical Properties
Ans: D
50:-Which of the following statement is correct?
A:-Glauber salt is used in direct dye on cotton and acid dye on wool as a leveling agent
B:-Glauber salt is used in direct dye on cotton and acid dye on wool as an exhausting agent
C:-Glauber salt is used in direct dye on cotton as exhausting agent and acid dye on wool as leveling agent
D:-Glauber salt is used in direct dye on cotton as leveling agent and acid dye on wool as exhausting agent
Ans: C
A:-Asymmetric feed
B:-Reverse feed
C:-Forward feed
D:-None of these
Ans: B
2:-For a balanced twist two fold yarn, F/S twist ratio i.e. folding twist/spinning twist =
A:-2/3
B:-1/2
C:-1
D:-none
Ans: A
3:-Bobbin leading mechanism is preferred over flyer lead mechanism in roving frame because
A:-It helps to reduce the power requirements of the machine
B:-When roving breaks, it will trail and not unwind
C:-Both of these
D:-None of these
Ans: C
4:-The most suitable yarn out of followings to run at warping/weaving will be
A:-Tenacity = 22 gpt, Strength CV = 8%
B:-Tenacity = 22 gpt, Strength CV = 18%
C:-Tenacity = 20 gpt, Strength CV = 12%
D:-Tenacity = 20 gpt, Strength CV = 18%
Ans: A
5:-The wasted movement in a loom is maximum in case of
A:-Bottom closed shed
B:-Semi-open shed
C:-Open shed
D:-Centre closed shed
Ans: A
6:-In case of surface driven winding package, as the winding proceeds, angle of wind
A:-increases
B:-decreases
C:-remains constant
D:-first increases then decreases
Ans: C
7:-In a sizing process, if add-on % is 14% and size paste concentration is 16%, the Wet pick-up% would be
A:-88%
B:-115%
C:-16%
D:-50%
Ans: A
8:-Arrange 20 Ne, 20 Nm and 20 tex yarn in increasing order of fineness
A:-20 Ne, 20 Nm, 20 tex
B:-20 Nm, 20 Ne, 20 tex
C:-20 tex, 20 Ne, 20 Nm
D:-20 Ne, 20 tex, 20 Nm
Ans: B
9:-A loom is designed to run at 440 ppm. If the fabric width is 2.5 m and weft crimp on loom is 6%, calculate weft insertion rate in m/min
A:-1000 m/min
B:-583 m/min
C:-1166 m/min
D:-1760 m/min
Ans: C
10:-Which of the following knitted fabrics are visually different on face and back sides?
A:-Plain
B:-1 × 1 rib
C:-1 × 1 purl
D:-Interlock
Ans: A
11:-A cotton woven fabric has 25 ends per cm and 28 picks per cm. The tex of warp and weft yarn are 30 and 15 respectively. Calculate the gsm of the fabric, assuming warp and weft crimp to be 12% and 6% respectively.
A:-102
B:-110
C:-84
D:-129
Ans: D
12:-The maximum twist loss occurring in weft yarn on latest air jet weaving machine is
A:-14%
B:-24%
C:-4%
D:-none of these
Ans: A
13:-Under lap of warp knitted fabric is basically equivalent to
A:-Closed loop
B:-Sinker loop
C:-Needle loop
D:-Open loop
Ans: B
14:-The advantage/s of electronic jacquard over mechanical jacquard is/are
A:-High speed hook selection
B:-Elimination of cylinder, needles and design card
C:-Can be interfaced with CAD
D:-All of the these
Ans: D
15:-Tip to tip transfer of weft takes place in
A:-Airjet looms
B:-Projectile looms
C:-Gabler system
D:-Dewas system
Ans: D
16:-Thespeed of yarn in m/sec on a 30 rpm 30 inch diameter 20 gauge rib machine knitting 2 mm loop length is approximately
A:-1.8
B:-2
C:-3.6
D:-none of these
Ans: A
17:-The application of a series of stitches or stitch types to one or several thicknesses of the material is called
A:-Stitch
B:-Seam
C:-Sewing
D:-Looping
Ans: B
18:-The technique used to reduce or enlarge a given size pattern is called
A:-Patterning
B:-Grading
C:-Marking
D:-None of these
Ans: B
19:-According to British Standard classification of stitches, lockstitch comes under
A:-Class 200
B:-Class 300
C:-Class 400
D:-Class 500
Ans: B
20:-The part of the sewing machine that moves the fabric along by a predetermined amount between successive stitches is called
A:-Throat plate
B:-Presser foot
C:-Feed Dog
D:-Over edger
Ans: C
21:-____________ stitch is frequently used on long seams in trousers.
A:-Lock stitch
B:-Multi-thread chain stitch
C:-Hand stitch
D:-Over edge chain stitch
Ans: B
22:-Which of the following statements is correct?
A:-In a lock stitch machine, the bobbin thread operates at a much higher tension than the needle thread
B:-In a lock stitch machine, the needle thread operates at a much higher tension than the bobbin thread
C:-In a lock stitch machine, the needle thread and bobbin thread operates at a similar tension
D:-None of these
Ans: B
23:-Choose the correct set of statements :
P. Denim is a weft faced twill cloth made from dyed warp and grey weft yarn
Q. Leno weaves are made from doup and standard threads, which are made to cross each other between picks
R. Sateen is a warp faced fabric
S. Repp is a plain weave fabric with a prominently weft way rib made from two warps and two wefts
A:-P, R
B:-P, S
C:-Q, S
D:-Q, R
Ans: C
24:-The steep angled twill can be designed
A:-with ends per cm higher than picks per cm
B:-with upward steps more than outward steps
C:-none of these
D:-both of these
Ans: D
25:-Terry weaves belong to
A:-Warp pile structures
B:-Weft pile structures
C:-Carpet structures
D:-None of these
Ans: A
26:-__________ weaving comes under Extra weft figuring.
A:-Lappet
B:-Swivel
C:-Velveteen
D:-None of these
Ans: B
27:-The primary distinction between a design principle and a design element is
A:-that principles are abstract and elements are concrete
B:-that elements are abstract and principles are concrete
C:-that principles are two dimensional and elements are three dimensional
D:-there is no clear distinction
Ans: A
28:-Design and lifting plan look alike for
A:-straight draft
B:-skip draft
C:-pointed draft
D:-satin draft
Ans: A
29:-Which one is not a measure of Central Tendency
A:-Mean
B:-Mean deviation
C:-Median
D:-Mode
Ans: B
30:-Approximate moisture regain of acrylic fibre under standard conditions is
A:-4%
B:-0.4%
C:-2%
D:-12%
Ans: C
31:-Presence of immature fibre in a sample of cotton fibre will have following effect on passage of air in the sample
(at a constant pressure head)
A:-Increase air flow
B:-Decrease air flow
C:-No change of air flow
D:-First increase air flow
Ans: B
32:-Elmendorf tearing strength tester measures
A:-Energy loss
B:-Bursting load
C:-Breaking load
D:-None of these
Ans: A
33:-U%, as measured by Uster Evenness Tester is
A:-CV% of mass variation
B:-CV% of diameter variation
C:-PMD of mass variations
D:-None of these
Ans: C
34:-One Kilogram of a 20 tex yarn will have a length of
A:-10 yard
B:-5 Km
C:-10 Km
D:-50 Km
Ans: D
35:-Two roving with a CV of 8% each are fed into a spinning zone and if the spinning unit adds 8% CV, the CV% of output yarn will be approximately?
A:-9.8%
B:-16%
C:-8%
D:-none
Ans: A
36:-An eccentric top roller in a drafting system leads to
A:-Change in draft with oscillation of nip line
B:-Change in draft without oscillation of nip line
C:-Neither change in draft nor oscillation of nip line
D:-Oscillation of nip line only
Ans: D
37:-The angle of projectile weaving machine from front to back is
A:-8°
B:-6°
C:-5°
D:-4°
Ans: D
38:-Erection tools and equipments used for projectile weaving machine is/are
A:-Zero error spirit level
B:-Jack
C:-Zero error adjustable spirit level and jack
D:-None of these
Ans: C
39:-Total Base Number (TBN) which is important for deciding discard of oil (Lubricants) decreases due to
A:-Oxidation of oil
B:-Water contamination
C:-Both of these
D:-None of these
Ans: C
40:-Bearings are to be used to meet following requirements
(i) High speed rotation
(ii) Low vibrations
(iii) Low friction
Which one is best suited to meet above requirements?
A:-Deep groove ball bearing
B:-Thrust ball bearing
C:-Cylinder roller bearing
D:-Tapered roller bearing
Ans: A
41:-The major contributions to weight of a mature cotton fibre is due to
A:-Pectin
B:-Lumen
C:-Primary Wall
D:-Secondary Wall
Ans: D
42:-Pick the odd one out
A:-Polyester
B:-Viscose
C:-Nylon-6
D:-Nylon-66
Ans: B
43:-Medulla is generally found in
A:-Cotton
B:-Silk
C:-Fine wool
D:-Coarse wool
Ans: D
44:-Which of the following fibre with highest moisture regain will exhibit highest wet/dry tenacity?
A:-Cotton
B:-Lyocell
C:-Modal
D:-Viscose
Ans: B
45:-The highest elastic recovery is exhibited by
A:-Viscose
B:-Nomex
C:-Lycra
D:-Acrylic
Ans: C
46:-Polyacrylonitrile polymer can be produced by using
A:-Emulsion polymerization
B:-Condensation polymerization
C:-Ring opening polymerization
D:-Solution polymerization
Ans: D
47:-Density of cotton fibre is approximately
A:-1.52 denier
B:-1.52 g/tex
C:-1.52 kg/`m^3`
D:-1.52 g/`cm^3`
Ans: D
48:-Correct sequence of major steps for production of viscose fibre is
A:-Steeping-Shredding-Xanthation-Ageing-Dissolution-Ripening-Spinning
B:-Steeping-Dissolution-Xanthation-Shredding-Ageing-Ripening-Spinning
C:-Steeping-Shredding-Ageing-Xanthation-Dissolution-Ripening-Spinning
D:-Steeping-Xanthation-Shredding-Ageing-Dissolution-Ripening-Spinning
Ans: C
49:-Which combination is not correct?
A:-PET - Tg ≈ 79°C
B:-Viscose Rayon - Xc ≈ 35%
C:-Polypropylene - Disperse Dyes
D:-Nomex - Excellent Mechanical Properties
Ans: D
50:-Which of the following statement is correct?
A:-Glauber salt is used in direct dye on cotton and acid dye on wool as a leveling agent
B:-Glauber salt is used in direct dye on cotton and acid dye on wool as an exhausting agent
C:-Glauber salt is used in direct dye on cotton as exhausting agent and acid dye on wool as leveling agent
D:-Glauber salt is used in direct dye on cotton as leveling agent and acid dye on wool as exhausting agent
Ans: C
51:-Dispersing agent is used in disperse dye for polyester
A:-To make insoluble dye water soluble
B:-To increase the exhaustion of disperse dye
C:-To ensure level dyeing
D:-To prevent precipitation of disperse dye
Ans: D
52:-Which is the true condition for reduction of vat dye?
A:-Redox potential of the dye bath must be higher than the dye
B:-Redox potential of the dye must be higher than the dye bath
C:-Redox potential of the dye and dye bath must be equal
D:-None of the above
Ans: A
53:-CSP of yarn is equal to the product of
A:-Yarn count (Ne) and lea strength (lbf)
B:-Yarn tex and lea strength (lbf)
C:-Yarn count (Ne) and lea strength (kgf)
D:-Yarn tex and lea strength (N)
Ans: A
54:-The trash content of cotton as fed to a beater is 3.6%. The waste extraction is 1.5% of which 80% is trash. The cleaning efficiency % of beater is
A:-24%
B:-33.3%
C:-48%
D:-66%
Ans: B
55:-What type of hooks are preferentially removed in roller drafting?
A:-Leading
B:-Trailing
C:-Both sided
D:-Diagonal
Ans: B
56:-Which of the following statements is correct?
A:-Ring spun yarn is strong and hairy as compared to rotor spun yarn
B:-Rotor spun yarn is even and weaker as compared to ring spun yarn
C:-Air jet spun is harsh and compact as compared to ring spun yarn
D:-All of these
Ans: D
57:-In case of cotton, AFIS can be used to measure
A:-Strength
B:-Elongation
C:-Maturity
D:-Number of convolutions
Ans: C
58:-A carding machine working at 90% efficiency has doffer speed 42 m/min and production rate 10.6 kg/hr.
Assuming no draft between doffer and delivery roller, find the density of sliver in ktex.
A:-2
B:-3
C:-4
D:-5
Ans: D
59:-As compared to the yarn fault A1, the fault D4 is
A:-Thinner and longer
B:-Thinner and shorter
C:-Thicker and longer
D:-Thicker and shorter
Ans: C
60:-On a ring frame, the spindle speed is 16,000 rpm. If the yarn twist is 8 turns per cm and winding on circumference is 4 cm, the traveler rpm would be
A:-16160
B:-15840
C:-15500
D:-16500
Ans: B
61:-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
Ans: B
62:-In which of the following process, the yarn is characterised by wrapper fibers
A:-TFO B:-Ring spinning C:-Dref spinning D:-Rotor spinning
Ans: D
63:-Which of the following packages can have parallel winding?
A:-Ring cop B:-Flanged bobbin C:-Cone D:-Cheese
Ans: B
64:-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
Ans: C
65:-The function of ABC ring
A:-Reduce yarn hairiness B:-Reduce yarn twist C:-Increase yarn twist D:-Controlballooning tension
Ans: D
66:-Which one of the following machines have primary object as doubling and drafting?
A:-Ring Doubler B:-Draw frame C:-Carding D:-Flyframe
Ans: B
67:-In comber, tailing hooks are removed by
A:-Bottom comb B:-Cylinder C:-Nipper D:-Top comb
Ans: D
68:-Type of fluting employed for apron roller is
A:-Hellical B:-Parallel C:-Knurled D:-Opposite helical
Ans: C
69:-Singlepreventer mechanism is employed in
A:-Ring frame B:-Card C:-Simplex D:-Draw frame
Ans: D
70:-Differential mechanism is employed in
A:-Slasher sizing machine B:-Scutcher C:-Winch dyeing machine D:-Flyframe
Ans: D
71:-Of the following machines which will occupy the last position in blowroom line
A:-Baleplucker B:-ERM cleaner C:-Monocylinder opener D:-Step cleaner
Ans: B
72:-Which of the following machines play major role in fiber individualisation?
A:-Crighton opener B:-Card C:-Draw frame D:-Flyframe
Ans: B
73:-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
Ans: A
74:-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
Ans: A
75:-The function of apron in drafting system is to
A:-Controlshort fibers B:-Increase draft C:-Increase TPI D:-Decrease draft constant
Ans: A
76:-Which of the following is a secondary property of textile fiber?
A:-Fineness B:-Length C:-Strength D:-Weight
Ans: A
77:-Which of the following machines make use of splicing?
A:-Blendomat B:-Auto coner
C:-Flyframe D:-Scutcher
Ans: B
78:-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
Ans: A
79:-The shore hardness recommended for front top roller of ring frame is
A:-859 shore B:-459 shore C:-1009 shore D:-659 shore
Ans: D
80:-Which of the following minimise channeling on top roller?
A:-Lappet hook B:-ABC ring C:-Traversing roving guide D:-Hellicallyfluted roller
Ans: C
81:-Bunch building is essential for
A:-Shuttlechanging looms B:-Cop changing looms C:-Drop box looms D:-Airjet looms
Ans: B
82:-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
Ans: C
83:-The number of threads in a lea is
A:-10 B:-80 C:-840 D:-7
Ans: B
84:-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
Ans: D
85:-The dividend for a standard 7 wheel take-up mechanism is
A:-10 B:-36 C:-1 D:-72
Ans: C
86:-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
Ans: C
87:-Which of the following is the primary ingredient in size paste?
A:-Weighting agent B:-Anti foaming agent C:-Wetting agent D:-Adhesive
Ans: D
88:-Sow box is used in
A:-Slaher sizing machine B:-Multiplebox loom C:-Drop box looms D:-Pit looms
Ans: A
89:-In sizing, poly vinyl alcohol is used as
A:-Antiseptic B:-Anti-mildew agent C:-Humectant D:-Adhesive
Ans: D
90:-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
Ans: B
91:-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
Ans: C
92:-Ifone 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
Ans: A
93:-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
Ans: B
94:-Which of the following is called the universal system?
A:-English cotton B:-Tex C:-Denier D:-French cotton
Ans: B
95:-Tailing effect is a defect associated with
A:-Mercerizing B:-Kier boiling C:-Gigger dyeing D:-Package dyeing
Ans: C
96:-State the instance for which early picking is most preferred
A:-Weaving strong weft B:-Multiplebox motion C:-Dobby shedding D:-Weaving weak weft
Ans: D
97:-Strength of cotton increases with
A:-Decrease in moisture content B:-Increase in moisture content
C:-Increase in temperature D:-Decrease in relative humidity
Ans: B
98:-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
Ans: C
99:-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
Ans: A
100. 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
Ans: A
A:-To make insoluble dye water soluble
B:-To increase the exhaustion of disperse dye
C:-To ensure level dyeing
D:-To prevent precipitation of disperse dye
Ans: D
52:-Which is the true condition for reduction of vat dye?
A:-Redox potential of the dye bath must be higher than the dye
B:-Redox potential of the dye must be higher than the dye bath
C:-Redox potential of the dye and dye bath must be equal
D:-None of the above
Ans: A
53:-CSP of yarn is equal to the product of
A:-Yarn count (Ne) and lea strength (lbf)
B:-Yarn tex and lea strength (lbf)
C:-Yarn count (Ne) and lea strength (kgf)
D:-Yarn tex and lea strength (N)
Ans: A
54:-The trash content of cotton as fed to a beater is 3.6%. The waste extraction is 1.5% of which 80% is trash. The cleaning efficiency % of beater is
A:-24%
B:-33.3%
C:-48%
D:-66%
Ans: B
55:-What type of hooks are preferentially removed in roller drafting?
A:-Leading
B:-Trailing
C:-Both sided
D:-Diagonal
Ans: B
56:-Which of the following statements is correct?
A:-Ring spun yarn is strong and hairy as compared to rotor spun yarn
B:-Rotor spun yarn is even and weaker as compared to ring spun yarn
C:-Air jet spun is harsh and compact as compared to ring spun yarn
D:-All of these
Ans: D
57:-In case of cotton, AFIS can be used to measure
A:-Strength
B:-Elongation
C:-Maturity
D:-Number of convolutions
Ans: C
58:-A carding machine working at 90% efficiency has doffer speed 42 m/min and production rate 10.6 kg/hr.
Assuming no draft between doffer and delivery roller, find the density of sliver in ktex.
A:-2
B:-3
C:-4
D:-5
Ans: D
59:-As compared to the yarn fault A1, the fault D4 is
A:-Thinner and longer
B:-Thinner and shorter
C:-Thicker and longer
D:-Thicker and shorter
Ans: C
60:-On a ring frame, the spindle speed is 16,000 rpm. If the yarn twist is 8 turns per cm and winding on circumference is 4 cm, the traveler rpm would be
A:-16160
B:-15840
C:-15500
D:-16500
Ans: B
61:-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
Ans: B
62:-In which of the following process, the yarn is characterised by wrapper fibers
A:-TFO B:-Ring spinning C:-Dref spinning D:-Rotor spinning
Ans: D
63:-Which of the following packages can have parallel winding?
A:-Ring cop B:-Flanged bobbin C:-Cone D:-Cheese
Ans: B
64:-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
Ans: C
65:-The function of ABC ring
A:-Reduce yarn hairiness B:-Reduce yarn twist C:-Increase yarn twist D:-Controlballooning tension
Ans: D
66:-Which one of the following machines have primary object as doubling and drafting?
A:-Ring Doubler B:-Draw frame C:-Carding D:-Flyframe
Ans: B
67:-In comber, tailing hooks are removed by
A:-Bottom comb B:-Cylinder C:-Nipper D:-Top comb
Ans: D
68:-Type of fluting employed for apron roller is
A:-Hellical B:-Parallel C:-Knurled D:-Opposite helical
Ans: C
69:-Singlepreventer mechanism is employed in
A:-Ring frame B:-Card C:-Simplex D:-Draw frame
Ans: D
70:-Differential mechanism is employed in
A:-Slasher sizing machine B:-Scutcher C:-Winch dyeing machine D:-Flyframe
Ans: D
71:-Of the following machines which will occupy the last position in blowroom line
A:-Baleplucker B:-ERM cleaner C:-Monocylinder opener D:-Step cleaner
Ans: B
72:-Which of the following machines play major role in fiber individualisation?
A:-Crighton opener B:-Card C:-Draw frame D:-Flyframe
Ans: B
73:-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
Ans: A
74:-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
Ans: A
75:-The function of apron in drafting system is to
A:-Controlshort fibers B:-Increase draft C:-Increase TPI D:-Decrease draft constant
Ans: A
76:-Which of the following is a secondary property of textile fiber?
A:-Fineness B:-Length C:-Strength D:-Weight
Ans: A
77:-Which of the following machines make use of splicing?
A:-Blendomat B:-Auto coner
C:-Flyframe D:-Scutcher
Ans: B
78:-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
Ans: A
79:-The shore hardness recommended for front top roller of ring frame is
A:-859 shore B:-459 shore C:-1009 shore D:-659 shore
Ans: D
80:-Which of the following minimise channeling on top roller?
A:-Lappet hook B:-ABC ring C:-Traversing roving guide D:-Hellicallyfluted roller
Ans: C
81:-Bunch building is essential for
A:-Shuttlechanging looms B:-Cop changing looms C:-Drop box looms D:-Airjet looms
Ans: B
82:-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
Ans: C
83:-The number of threads in a lea is
A:-10 B:-80 C:-840 D:-7
Ans: B
84:-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
Ans: D
85:-The dividend for a standard 7 wheel take-up mechanism is
A:-10 B:-36 C:-1 D:-72
Ans: C
86:-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
Ans: C
87:-Which of the following is the primary ingredient in size paste?
A:-Weighting agent B:-Anti foaming agent C:-Wetting agent D:-Adhesive
Ans: D
88:-Sow box is used in
A:-Slaher sizing machine B:-Multiplebox loom C:-Drop box looms D:-Pit looms
Ans: A
89:-In sizing, poly vinyl alcohol is used as
A:-Antiseptic B:-Anti-mildew agent C:-Humectant D:-Adhesive
Ans: D
90:-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
Ans: B
91:-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
Ans: C
92:-Ifone 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
Ans: A
93:-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
Ans: B
94:-Which of the following is called the universal system?
A:-English cotton B:-Tex C:-Denier D:-French cotton
Ans: B
95:-Tailing effect is a defect associated with
A:-Mercerizing B:-Kier boiling C:-Gigger dyeing D:-Package dyeing
Ans: C
96:-State the instance for which early picking is most preferred
A:-Weaving strong weft B:-Multiplebox motion C:-Dobby shedding D:-Weaving weak weft
Ans: D
97:-Strength of cotton increases with
A:-Decrease in moisture content B:-Increase in moisture content
C:-Increase in temperature D:-Decrease in relative humidity
Ans: B
98:-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
Ans: C
99:-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
Ans: A
100. 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
Ans: A