GATE > Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test)

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Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 1

“When she fell down the _______, she received many _______ but little help.”

The words that best fill the blanks in the above sentence are

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 2

“In spite of being warned repeatedly, he failed to correct his _________ behaviour.”

The word that best fills the blank in the above sentence is

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 3

For and cos �� are both decreasing functions in the interval ________.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 4

The area of an equilateral triangle is √3. What is the perimeter of the triangle?

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 5

Arrange the following three-dimensional objects in the descending order of their volumes:

(i) A cuboid with dimensions 10 cm, 8 cm and 6 cm

(ii) A cube of side 8 cm

(iii) A cylinder with base radius 7 cm and height 7 cm

(iv) A sphere of radius 7 cm

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 6

An automobile travels from city A to city B and returns to city A by the same route. The speed of the vehicle during the onward and return journeys were constant at 60 km/h and 90 km/h, respectively. What is the average speed in km/h for the entire journey?

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 7

A set of 4 parallel lines intersect with another set of 5 parallel lines. How many parallelograms are formed?

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 8

To pass a test, a candidate needs to answer at least 2 out of 3 questions correctly. A total of 6,30,000 candidates appeared for the test. Question A was correctly answered by 3,30,000 candidates. Question B was answered correctly by 2,50,000 candidates. Question C was answered correctly by 2,60,000 candidates. Both questions A and B were answered correctly by 1,00,000 candidates. Both questions B and C were answered correctly by 90,000 candidates. Both questions A and C were answered correctly by 80,000 candidates. If the number of students answering all questions correctly is the same as the number answering none, how many candidates failed to clear the test?

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 9

If ��^{ 2} + �� − 1 = 0 what is the value of

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 10

In a detailed study of annual crow births in India, it was found that there was relatively no growth during the period 2002 to 2004 and a sudden spike from 2004 to 2005. In another unrelated study, it was found that the revenue from cracker sales in India which remained fairly flat from 2002 to 2004, saw a sudden spike in 2005 before declining again in 2006. The solid line in the graph below refers to annual sale of crackers and the dashed line refers to the annual crow births in India. Choose the most appropriate inference from the above data.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 11

Let is equal to

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 12

If A and B are two independent events such that then ��(A ∪ B) is equal to

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 13

Which one of the following is a leaf fibre?

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 14

The pair of fibres most prone to accumulation of static charge is

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 15

Heat-setting of melt-spun and drawn Nylon 6 filament yarn under slack condition leads to increase in its

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 16

Which one of the fibres, having stress-strain curves as shown in the figure, is the most suitable for making mountaineering ropes?

*Multiple options can be correct

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 17

The technology that produces yarn with the maximum fibre migration is

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 18

The cleaning machine, located in the fine cleaning zone of blowroom, uses the following as the opening element

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 19

The purpose of having grooves or notches in modern flyer tops in speed frames is to

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 20

With time, wind per double traverse in a drum-driven winder

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 21

In a loom, seven-wheel take-up motion is

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 22

The relative humidity (in %) and temperature (in °C) of standard testing atmosphere are respectively

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 23

In Stelometer, if F is the force acting on a fibre bundle and θ is the angle through which the pendulum is moved, then F is directly proportional to

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 24

Yarn diameter varies

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 25

The constant-rate-of-extension type tensile tester is NOT used for

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 26

During bleaching of cotton with hydrogen peroxide, addition of sodium silicate

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 27

In dyeing of wool with levelling acid dyes, with time, the pH of dye bath

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 28

The discharging agent used in discharge printing of cotton with reactive dyes is

*Multiple options can be correct

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 29

Application of a fluorochemical based finish on a textile fabric imparts

P. Water repellency

Q. Oil repellency

R. Soil repellency

S. Soil release property

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 30

If are three vectors such that is perpendicular to then the value of λ is ______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 31

If y(x) is the solution of the differential equation yy ′ = 8 x , y(0) = 2 , then the absolute value of y(2) is _______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 32

If is a continuous function for all real values of x , then f(8) is equal to _______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 33

A twistless polyester yarn has 90 filaments, each of 2 denier. The metric count of the yarn is ______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 34

Bottom shaft of a shuttle loom, weaving 2 up 1 down twill weave, is rotating at 90 rpm. The speed of cam shaft (in rpm) is ____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 35

If wale constant and course constant for knitted fabrics are 4.2 and 5.46, respectively, then the value of the loop shape factor, accurate to one decimal place, is ______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 36

The cross-sectional shape of a fibre affects the following properties of yarn

P. Lustre

Q. Torsional rigidity

R. Flexural rigidity

S. Packing density

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 37

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

[a]: The reaction temperature and rate of agitation during polymerization of polyethylene terephthalate have an important effect on molecular weight of the polymer produced.

[r]: Polymerization of polyester by melt polycondensation is a predominantly diffusion controlled process.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 38

Group I gives a list of fibres and Group II contains their applications. Match the fibre with its application.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 39

Techniques used to determine the glass transition temperature of textile fibres are

P. X-ray diffraction (XRD)

Q. Differential scanning calorimetry (DSC)

R. Thermogravimetric analysis (TGA)

S. Dynamic mechanical analysis (DMA)

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 40

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

[a]: In a carding machine, carding type of wire point configuration is used between cylinder and doffer.

[r]: Carding type of wire point configuration gives the best fibre transfer without disturbing the fibre alignment.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 41

Match the spinning technology listed in Group I with the machine component / function listed in Group II.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 42

Compared to filaments in spunbonded nonwovens, those in meltblown nonwovens have

P. Lower orientation of molecular chains

Q. Higher orientation of molecular chains

R. Lower variability in diameter

S. Higher variability in diameter

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 43

Match the weave in Group I with fabric attribute in Group II.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 44

Match the test in Group I with fabric property in Group II.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 45

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

[a]: The work factor of silk fibre is greater than 0.5.

[r]: The work factor is calculated by assuming the following as the stress-strain curve of silk fibre.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 46

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

[a]: As the concentration of a surfactant in water increases, the surface tension of water initially decreases and then becomes constant.

[r]: After reaching the Critical Micelle Concentration, additional surfactant molecules do not further reduce the surface tension.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 47

A dye is applied on a fibre using Na_{2}S_{2}O_{4 }as an auxiliary. Washing fastness of the dye on fibre is good. The correct combination of the dye and the fibre is

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 48

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r].

[a]: Emulsion thickener is used in pigment printing of textiles.

[r]: Emulsion thickener has high solid content.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 49

Match the dye-fibre in Group I with the interactions in Group II.

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 50

Let �� be a random variable following the binomial distribution. If ��(��) = 2 and ��a��(��) = 1.2 , then ��(�� = 2) , accurate to three decimal places, is equal to ____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 51

The value of the integral

is ____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 52

Starting from the initial point x_{0} = 10, if the sequence {x_{n}} is generated using Newton Raphson method to compute the root of the equation x^{4} − 600 = 0, then x_{2} , accurate to two decimal places, is equal to _____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 53

If , then the sum of all eigenvalues of the matrix M = A^{2} − 4 A^{−1} is equal to _____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 54

If the density of 100% crystalline polyethylene is 1000 kg×m^{-3} and that of 100% amorphous polyethylene is 865 kg×m^{-3}, then the mass fractional crystallinity of a polyethylene fibre with density 970 kg×m^{-3}, accurate to two decimal places, is ___________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 55

In winding zone of ring spinning, the permissible minimum angle of lead is 30°. For a ring of 40 mm diameter, the minimum diameter (in mm) of bobbin required is _________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 56

A sliver of 4.2 kilotex is fed in a rotor spinning machine with opening zone draft of 1400. The draft in the transport duct is 5 and the sliding draft on the rotor wall till the rotor groove is 2. If the total back doubling within the rotor is 120, then the linear density (in tex) of the output yarn is ___________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 57

An eight head comber is running at 400 nips/min. The lap fed is 60 kilotex and noil extracted is 20%. If the feed/nip is 7 mm, then with machine utilization of 80%, the production rate (in kg/h), accurate to one decimal place, is ____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 58

A shuttle loom having 1.75 m reed width is running at 180 rpm. The shuttle enters and leaves the shed at 120° and 240° angular positions of crankshaft, respectively. If length of the shuttle is 0.25 m, then the mean velocity (in m/s) of the shuttle within the shed is ___________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 59

The diameter and length of torsion rod used in a projectile loom are increased by 5% and 20%, respectively. If the torque required to twist the rod increases by X%, then the value of X, accurate to two decimal places, is _____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 60

Cloth cover factor of a square plain jammed cotton fabric, accurate to one decimal place, is _____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 61

In a vibroscope, a cotton fibre of 25 mm length is clamped at one end, led over a knifeedge support, tensioned by a weight of 350 mg, and is inclined to vibrate at a fundamental resonant frequency of 2.6 kHz. The linear density of the fibre (in tex), accurate to two decimal places, is ____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 62

The theoretical limit coefficient of variation (V_{r} in %) of the weight per unit length of cotton sliver is where N is the average number of fibres present in the crosssection of the sliver. To derive this expression, the coefficient of variation (in %) of the fibre weight per unit length, accurate to two decimal places, is considered as ______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 63

The bending length of a nonwoven fabric in machine direction is two times the bending length in cross-machine direction. The ratio of flexural rigidities of this fabric in machine direction to cross-machine direction is ______________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 64

The standard deviation of population P is two times the standard deviation of population Q. The size of a random sample from population P is four times the size of a random sample from population Q. If e_{P} and e_{Q} denote the standard error of means of the samples from P and Q, respectively, then the ratio of e_{P }to e_{Q} is _____________

Textile Engineering And Fibre Science - (TF) 2018 GATE Paper (Practice Test) - Question 65

A crease resist (CR) agent is applied by padding on a fabric of 1 m width and 200 g/m^{2} areal density. The concentration of CR agent in the pad bath is 100 gpl and the fabric speed is 50 m/min. The expression is 110% and the specific gravity of the pad liquor is 1.1. In order to maintain the bath concentration, the rate (in kg/min) at which the CR agent needs to be added to the bath, accurate to one decimal place, is_______________

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