Textile Engineering Gate 2017 Questions with Answer

Ques 1 GATE 2017


If the scalar projection of the vector a⃗ = 3î + βk̂ on the vector b⃗ = 2î - 2ĵ + k̂ is 5, what is a possible value of β?

A

21

B

9

C

-1

D

-6


(b) is the correct answer.

Ques 2 GATE 2017


What is the Laplace transform of e-tcos(2t)?

A

(s-1)/(s² - 2s + 5)

B

1/(s² + 2s + 5)

C

(s+1)/(s² - 2s + 2)

D

(s+1)/(s² + 2s + 5)


(d) is the correct answer.

Ques 3 GATE 2017


If z(x,y) = x² - y², x(t) = t - t⁻² and y(t) = t² + t⁻³, what is dz/dt at t = 1?


(3.99 to 4.01) is the correct answer.

Ques 4 GATE 2017


In a three-sigma control chart, the probability that a point falls outside the control limits, when a process is under control, is

A

0

B

0.0027

C

0.01

D

0.05


(b) is the correct answer.

Ques 5 GATE 2017


What is the median, accurate to two decimal places, of a random variable X with the probability density function f(x) = { 3x⁻⁴, x > 1; 0, x ≤ 1 }?


(1.25 to 1.27) is the correct answer.

Ques 6 GATE 2017


Using Simpson's 1/3 rule, what is the value of the integral (1/π) ∫0π (1 + √sin(x)) dx, accurate to two decimal places?


(1.65 to 1.76) is the correct answer.

Ques 7 GATE 2017


If a solution curve of the differential equation x(dy/dx) = y + 2x³ passes through the point (1,0), which other point does this curve also pass through?

A

(-1.0)

B

(0,-1)

C

(2.10)

D

(-2.6)


(a) is the correct answer.

Ques 8 GATE 2017


The system of linear equations

has

A

no solution for α = 1 and β = -8.

B

Unique solution for α =-1, β=8

C

Infinitely many solutions for α =-1, β=-8

D

Infinitely many solutions for α =1, β=8


(c) is the correct answer.

Ques 9 GATE 2017


The function f(x) = x³ - 3x² - 9x + 10 is

A

Increasing in the interval (1,∞)

B

Increasing in the interval (18,1)

C

Decreasing in the interval (-1, 3)

D

Decreasing in the interval (-3,1)


(c) is the correct answer.

Ques 10 GATE 2017


Let S₁ be the plane figure consisting of the points (x, y) given by the inequalities |x-1|≤2 and |y+2|≤3. Let S₂ be the plane figure given by the inequalities x-y≥-2, y≥1 and x≤3. Let S be the union of S₁ and S₂. The area of S is

A

26

B

28

C

32

D

34


(c) is the correct answer.

Ques 11 GATE 2017


Probability of warp breakage during weaving increases, when

A

Warp extensibility is decreased

B

Warp unevenness is decreased

C

End density is decreased

D

Warp hairiness is decreased


(a) is the correct answer.

Ques 12 GATE 2017


In terms of weft insertion rate, which of the following is correct?

A

Airjet > Waterjet > Multiphase > Projectile

B

Multiphase > Airjet > Waterjet > Projectile

C

Projectile > Waterjet > Airjet > Multiphase

D

Waterjet > Projectile > Multiphase > Airjet


(b) is the correct answer.

Ques 13 GATE 2017


A tuck stitch in knitting makes the fabric

A

Narrower

B

Thinner

C

More rigid in course direction

D

Wider and porous


(d) is the correct answer.

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