Yaa Gate Interrogation Solutions For Cloth Applied Scientific Discipline As Well As Fibre Scientific Discipline (Tf)
Thursday 13 December 2018
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Many students of textile applied scientific discipline was asked many times for publishing previous years enquiry papers too solution inwards our blog. I call upwards this article volition live helpful for those guys who trying to ready for GATE seek out inwards textile engineering too fiber scientific discipline (TF).
1) Which of the next amino acids is responsible for relatively higher moisture strength inwards wool fiber?
(A) Threonine
(B) Serine
(C) Cystine
(D) Tryosine
CORRECT ANSWER-(C)
Explanation:
Wool has H-bonds, cross-linkages. Cystine are cross-linkages or disulfide bridge. In moisture status H- bond weakens, thus cysteine cross-linkages which are potent bonds gives relatively moisture strength to wool fibre.
2) Which 1 of the next stereo structures of polypropylene is (are) used for commercial fibre manufacture?
(A) Atactic
(B) Syndiotactic
(C) Isotactic &Syndiotactic
(D) Isotactic
CORRECT ANSWER- (D)
Explanation:
Isotactic polypropylene is close crystalline, potent amid isotactic, atactic, syndiotactic.
3) Acrylic fibre has high drinking glass transition temperature ( Tg ≈ 100oC) primarily due to
(A) Presence of polar side groups
(B) Presence of bulky side groups
(C) High crystallinity
(D) Main chain stiffness
CORRECT ANSWER- (A)
Explanation:
Acrylic fibre has polar side groups. Due to polar side groups, intermolecular forces are developed which restricts the crusade of polymer chain thus Tg increases.
You may too like: GATE Preparation for Textile Engineering – Answer Key too Useful Tips
4) In which of the next polymerization methods the charge per unit of measurement of reaction is really high too leads to uncontrolled polymerization?
(A) Solution polymerization
(B) Suspension polymerization
(C) Bulk polymerization
(D) Emulsion polymerization
CORRECT ANSWER- (C).
Explanation:
In mass polymerization charge per unit of measurement of reaction is really high due to high monomer concentration too viscosity of reaction organisation increases speedily thus it leads to uncontrolled polymerization
5) Which of the next textile strands is the finest?
(A) 30s Ne
(B) xxx denier
(C) xxx tex
(D) 30s Nm
CORRECT ANSWER- (B)
Explanation:
Denier = 5315/Ne
30 denier = 177.16s Ne
Tex = 591/Ne
30 Tex = 19.7s Ne
Nm = 1.69 x Ne
30s Nm = 50.7s Ne
Higher the Ne, finer the strand thus xxx denier is finest.
6) In a carding machine, inwards which of the next zones the fibre alignment is negatively affected to the maximum extent?
A. Cylinder to flats carding share
B. Licker-in to cylinder transfer share
C. Cylinder to doffer transfer share
D. Doffer to calendar roller share
CORRECT ANSWER- (C).
Explanation:
Cylinder to doffer share has negative draft. Surface speed of cylinder is higher every bit compare to doffer thus fiber alignment is negatively affected to maximum extent inwards cylinder to doffer transfer region.
7) Which of the next is the right sequence of events which come about inwards a roller drafting zone?
A. Fibre elongation-fibre decrimping- fibre sliding
B. Fibre sliding-fibre elongation-fibre decrimping
C. Fibre decrimping- fibre sliding- fibre elongation
D. Fibre decrimping- fibre elongation- fibre sliding
CORRECT ANSWER- (D)
Explanation:
Before drafting fibres are non straight. In roller drafting, get-go crimp is removed, later becoming direct in that location is fibre elongation. If the strength applied beyond this indicate thus fibre sliding happens.
8) In which share of proper substantive upwards spinning, Coriolis strength acts?
A. Lappet to proper substantive upwards cop
B. Delivery dyad of drafting rollers to lappet
C. Back dyad of drafting rollers to delivery dyad of drafting rollers
D. Feed bobbin to dorsum dyad of drafting rollers
CORRECT ANSWER- (A)
Explanation:
The Coriolis strength is an inertial strength that acts on objects that are inwards motility relative to rotating reference frame.
9) Which of the next shuttleless weaving systems tin offering maximum cloth width ?
(A) Air jet
(B) Water jet
(C) Projectile
(D) Rapier
CORRECT ANSWER- (C)
Explanation:
Fluid velocity decreases along the width of loom, thus width of fluid carrier loom is non every bit higher every bit projectile. In flexible rapier loom, buckling of belt happens. In stiff rapier loom, width can’t live higher, If loom width is equal to 100 unit of measurement thus length of rod used to displace rapier caput volition live equal to approx. l unit of measurement on both side of loom thus loom width volition boot the bucket approx. 200 unit of measurement (100 unit of measurement wastage) which is non meaningful.
10) The filling yarn density at selvage is doubled inwards illustration of
(A) Fringe selvage
(B) Tucked-in selvage
(C) Shuttle selvage
(D) Leno selvage
CORRECT ANSWER (B)
Explanation:
Tucked-in selvedge is formed past times tucking the goal of selection into cloth selvedge.
11) Which of the next shedding mechanisms provides command of private warp thread during weaving?
(A) Crank
(B) Tappet
(C) Dobby
(D) Jacquard
CORRECT ANSWER- (D)
Explanation:
In jacquard shedding, every warp thread is controlled separately past times way of harness cords, hooks too needles.
12)The fourth dimension required (minutes) to air current 10 kg of twoscore tex yarn when the winding machine plant at M m/min amongst an efficiency of 90% is ____________
CORRECT ANSWER- (277.77)
Explanation:
Given
Winding speed = M m/min
Efficiency = 90%
Yarn to live air current = 10 kg of twoscore tex
Calculation:
Actual winding speed = ninety % of M = 900 m/min
Length of yarn to live air current =
40 tex means- twoscore gm yarn = M m length of yarn
So 10 kg = 10000 gm yarn = 250,000 m length of yarn
Time required to air current 900 m = 1 min
So Time required to air current 250,000 m = 277.77 min
13) The seek out statistic to live used for carrying out a seek out of hypothesis on the hateful of a normal distribution amongst unknown variance is
(A) Z
(B) T
(C) χ2
(D) F
CORRECT ANSWER- (B)
Explanation:
T seek out when variance of population is unknown.
Z seek out when variance of population is known.
14) If the length of a confidence interval on the hateful of a normal distribution amongst known variance is to live halved, the sample size must
(A) Increase past times 2 times
(B) Decrease past times 2 times
(C) Increase past times iv times
(D) Decrease past times iv times
CORRECT ANSWER- (C)
Explanation:
Confidence interval α
15) H5N1 cloth specimen of master copy length 75 mm is stretched to a length of 120 mm too later removal of the charge the length reduces to 95 mm. The elastic recovery (%) of the cloth specimen is ________
CORRECT ANSWER (55.55)
Explanation:
Given
Original length of cloth specimen = 75 mm
After stretching length = 120 mm
After removal of load, length = 95 mm
Calculation:
Extension later application of charge = 120 – 75 = 45 mm
Remaining extension later removal of charge = twenty mm
Recovered length = 25 mm
Elongation % =
x 100
=
x 100
= 55.55
16) H5N1 sector-shaped, falling-pendulum type apparatus is suitable for measuring of
(A) Elmendorf tear strength
(B) Tongue tear strength
(C) Trapezoidal tear strength
(D) All of them
CORRECT ANSWER- (A)
Explanation:
Tongue tear strength = CRE type tensile testing musical instrument
Trapezoidal tear strength = CRT & CRE both type tensile testing musical instrument
Elmendorf tear strength = Falling pendulum type appratus
17) Sodium persulphate is used inwards
(A) Bleaching
(B) Scouring
(C) Mercerization
(D) Desizing
CORRECT ANSWER (D)
Explanation:
Sodium persulphate is used inwards oxidative desizing
18) H5N1 dye amongst dischargeability rating of 1 (one) WILL NOT live suitable for
(A) Resist printing
(B) Direct printing
(C) Discharge printing
(D) Melt transfer printing
CORRECT ANSWER- (C)
Explanation:
Dischargeability rating scale ranges from 1-5. As rating increases dischageability increases
19) The enzyme used for biopolishing of cotton wool is
(A) Cellulase
(B) Pectinase
(C) Amylase
(D) Lipase
CORRECT ANSWER- (A)
Explanation:
Lipase – scouring
Pectinase – scouring
Amylase – scouring
Cellulase – biopolishing
Article published past times
Sachin Gupta
He has secured AIR 1 inwards GATE 2016
M.Tech (Textile Engineering), IIT, Delhi
Email: saching910@gmail.com
Web: www.exponentialcareercampus.in
 |
GATE 2016 Solution
1) Which of the next amino acids is responsible for relatively higher moisture strength inwards wool fiber?
(A) Threonine
(B) Serine
(C) Cystine
(D) Tryosine
CORRECT ANSWER-(C)
Explanation:
Wool has H-bonds, cross-linkages. Cystine are cross-linkages or disulfide bridge. In moisture status H- bond weakens, thus cysteine cross-linkages which are potent bonds gives relatively moisture strength to wool fibre.
2) Which 1 of the next stereo structures of polypropylene is (are) used for commercial fibre manufacture?
(A) Atactic
(B) Syndiotactic
(C) Isotactic &Syndiotactic
(D) Isotactic
CORRECT ANSWER- (D)
Explanation:
Isotactic polypropylene is close crystalline, potent amid isotactic, atactic, syndiotactic.
3) Acrylic fibre has high drinking glass transition temperature ( Tg ≈ 100oC) primarily due to
(A) Presence of polar side groups
(B) Presence of bulky side groups
(C) High crystallinity
(D) Main chain stiffness
CORRECT ANSWER- (A)
Explanation:
Acrylic fibre has polar side groups. Due to polar side groups, intermolecular forces are developed which restricts the crusade of polymer chain thus Tg increases.
You may too like: GATE Preparation for Textile Engineering – Answer Key too Useful Tips
4) In which of the next polymerization methods the charge per unit of measurement of reaction is really high too leads to uncontrolled polymerization?
(A) Solution polymerization
(B) Suspension polymerization
(C) Bulk polymerization
(D) Emulsion polymerization
CORRECT ANSWER- (C).
Explanation:
In mass polymerization charge per unit of measurement of reaction is really high due to high monomer concentration too viscosity of reaction organisation increases speedily thus it leads to uncontrolled polymerization
5) Which of the next textile strands is the finest?
(A) 30s Ne
(B) xxx denier
(C) xxx tex
(D) 30s Nm
CORRECT ANSWER- (B)
Explanation:
Denier = 5315/Ne
30 denier = 177.16s Ne
Tex = 591/Ne
30 Tex = 19.7s Ne
Nm = 1.69 x Ne
30s Nm = 50.7s Ne
Higher the Ne, finer the strand thus xxx denier is finest.
6) In a carding machine, inwards which of the next zones the fibre alignment is negatively affected to the maximum extent?
A. Cylinder to flats carding share
B. Licker-in to cylinder transfer share
C. Cylinder to doffer transfer share
D. Doffer to calendar roller share
CORRECT ANSWER- (C).
Explanation:
Cylinder to doffer share has negative draft. Surface speed of cylinder is higher every bit compare to doffer thus fiber alignment is negatively affected to maximum extent inwards cylinder to doffer transfer region.
7) Which of the next is the right sequence of events which come about inwards a roller drafting zone?
A. Fibre elongation-fibre decrimping- fibre sliding
B. Fibre sliding-fibre elongation-fibre decrimping
C. Fibre decrimping- fibre sliding- fibre elongation
D. Fibre decrimping- fibre elongation- fibre sliding
CORRECT ANSWER- (D)
Explanation:
Before drafting fibres are non straight. In roller drafting, get-go crimp is removed, later becoming direct in that location is fibre elongation. If the strength applied beyond this indicate thus fibre sliding happens.
8) In which share of proper substantive upwards spinning, Coriolis strength acts?
A. Lappet to proper substantive upwards cop
B. Delivery dyad of drafting rollers to lappet
C. Back dyad of drafting rollers to delivery dyad of drafting rollers
D. Feed bobbin to dorsum dyad of drafting rollers
CORRECT ANSWER- (A)
Explanation:
The Coriolis strength is an inertial strength that acts on objects that are inwards motility relative to rotating reference frame.
 |
(A) Air jet
(B) Water jet
(C) Projectile
(D) Rapier
CORRECT ANSWER- (C)
Explanation:
Fluid velocity decreases along the width of loom, thus width of fluid carrier loom is non every bit higher every bit projectile. In flexible rapier loom, buckling of belt happens. In stiff rapier loom, width can’t live higher, If loom width is equal to 100 unit of measurement thus length of rod used to displace rapier caput volition live equal to approx. l unit of measurement on both side of loom thus loom width volition boot the bucket approx. 200 unit of measurement (100 unit of measurement wastage) which is non meaningful.
10) The filling yarn density at selvage is doubled inwards illustration of
(A) Fringe selvage
(B) Tucked-in selvage
(C) Shuttle selvage
(D) Leno selvage
CORRECT ANSWER (B)
Explanation:
Tucked-in selvedge is formed past times tucking the goal of selection into cloth selvedge.
 |
(A) Crank
(B) Tappet
(C) Dobby
(D) Jacquard
CORRECT ANSWER- (D)
Explanation:
In jacquard shedding, every warp thread is controlled separately past times way of harness cords, hooks too needles.
12)The fourth dimension required (minutes) to air current 10 kg of twoscore tex yarn when the winding machine plant at M m/min amongst an efficiency of 90% is ____________
CORRECT ANSWER- (277.77)
Explanation:
Given
Winding speed = M m/min
Efficiency = 90%
Yarn to live air current = 10 kg of twoscore tex
Calculation:
Actual winding speed = ninety % of M = 900 m/min
Length of yarn to live air current =
40 tex means- twoscore gm yarn = M m length of yarn
So 10 kg = 10000 gm yarn = 250,000 m length of yarn
Time required to air current 900 m = 1 min
So Time required to air current 250,000 m = 277.77 min
13) The seek out statistic to live used for carrying out a seek out of hypothesis on the hateful of a normal distribution amongst unknown variance is
(A) Z
(B) T
(C) χ2
(D) F
CORRECT ANSWER- (B)
Explanation:
T seek out when variance of population is unknown.
Z seek out when variance of population is known.
14) If the length of a confidence interval on the hateful of a normal distribution amongst known variance is to live halved, the sample size must
(A) Increase past times 2 times
(B) Decrease past times 2 times
(C) Increase past times iv times
(D) Decrease past times iv times
CORRECT ANSWER- (C)
Explanation:
Confidence interval α
15) H5N1 cloth specimen of master copy length 75 mm is stretched to a length of 120 mm too later removal of the charge the length reduces to 95 mm. The elastic recovery (%) of the cloth specimen is ________
CORRECT ANSWER (55.55)
Explanation:
Given
Original length of cloth specimen = 75 mm
After stretching length = 120 mm
After removal of load, length = 95 mm
Calculation:
Extension later application of charge = 120 – 75 = 45 mm
Remaining extension later removal of charge = twenty mm
Recovered length = 25 mm
Elongation % =
x 100 =
x 100 = 55.55
16) H5N1 sector-shaped, falling-pendulum type apparatus is suitable for measuring of
(A) Elmendorf tear strength
(B) Tongue tear strength
(C) Trapezoidal tear strength
(D) All of them
CORRECT ANSWER- (A)
Explanation:
Tongue tear strength = CRE type tensile testing musical instrument
Trapezoidal tear strength = CRT & CRE both type tensile testing musical instrument
Elmendorf tear strength = Falling pendulum type appratus
17) Sodium persulphate is used inwards
(A) Bleaching
(B) Scouring
(C) Mercerization
(D) Desizing
CORRECT ANSWER (D)
Explanation:
Sodium persulphate is used inwards oxidative desizing
18) H5N1 dye amongst dischargeability rating of 1 (one) WILL NOT live suitable for
(A) Resist printing
(B) Direct printing
(C) Discharge printing
(D) Melt transfer printing
CORRECT ANSWER- (C)
Explanation:
Dischargeability rating scale ranges from 1-5. As rating increases dischageability increases
19) The enzyme used for biopolishing of cotton wool is
(A) Cellulase
(B) Pectinase
(C) Amylase
(D) Lipase
CORRECT ANSWER- (A)
Explanation:
Lipase – scouring
Pectinase – scouring
Amylase – scouring
Cellulase – biopolishing
Article published past times
Sachin Gupta
He has secured AIR 1 inwards GATE 2016
M.Tech (Textile Engineering), IIT, Delhi
Email: saching910@gmail.com
Web: www.exponentialcareercampus.in