Numerical Computation and Estimation - General Aptitude - General Aptitude (GA) Previous Year Questions

1

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

The range of spinning speed (m/min) used in the manufacture of partially oriented polyester yarn is

A

1000 – 1200

B

2000 – 2500

C

2800 – 3500

D

4000 – 6000

Open complete paper

2

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

In a card, the wire point density is maximum on

A

Cylinder

B

Flat

C

Doffer

D

Licker-in

Open complete paper

3

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

Size add-on does not depend on

A

Roller hardness

B

Drying cylinder temperature

C

Size paste concentration

D

Machine speed

Open complete paper

4

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

The factor that does not influence the propelling force for moving the weft yarn on air jet loom is

A

Coefficient of friction between air and yarn

B

Air velocity

C

Yarn strength

D

Yarn diameter

Open complete paper

5

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

On a mass based evenness tester, thin place in a yarn at –40 % setting is counted if mass per unit length is

A

40 % of the mean mass per unit length

B

60 % of the mean mass per unit length

C

40 % of the mean mass per unit length or less

D

60 % of the mean mass per unit length or less

Open complete paper

6

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

Ratio of grab strength to strip strength is the highest when fabric extension (%) is

A

0

B

5

C

10

D

15

Open complete paper

7

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

The density of a given polyester filament sample is 1.38 g/cm³. Consider the density of fully crystalline polyester as 1.455 g/cm³ and that of fully amorphous polyester as 1.335 g/cm³. The percent crystallinity of the sample is ______.

Check answer

Open complete paper

8

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

The strength utilization of yarn in a woven fabric is

A

Always more than 1.0

B

Always less than 1.0

C

Always equal to 1.0

D

Either more or less than 1.0

Open complete paper

9

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

A fabric is woven from 38 tex yarns of 0.65 packing coefficient and 1.54 g/cm³ fibre density. The fabric has 30 ends per cm and 25 picks per cm. Assume that warp is jammed. The weft crimp (%) is approximately

A

0

B

5

C

10

D

15

Open complete paper

10

2012 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2012

The minimum value of thermal conductivity, in mW/(m·K), is approximately

A

36

B

39

C

41

D

46

Open complete paper

11

2014 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2014

The population of a new city is 5 million and is growing at 20% annually. How many years would it take to double at this growth rate?

A

3-4 years

B

4-5 years

C

5-6 years

D

6-7 years

Open complete paper

12

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

In melt spinning line, the melting of solid polymer and its homogenization takes place in

Check answer

Open complete paper

13

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

The yarn tenacity (gf/tex) measured in lea form, compared to that measured in single yarn form is

A

Always lower

B

Always higher

C

Always equal

D

Higher or lower depending on yarn count

Open complete paper

14

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

For meeting the criterion of number of defects in a product, the relationship between upper control limit (UCL) and upper specification limit (USL) should be

A

UCL < USL

B

UCL > USL

C

UCL = 2USL

D

UCL = (USL)³

Open complete paper

15

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

In ring spinning, the tension in yarn is the maximum

A

Between the lappet guide and front roller

B

Where the balloon radius is the maximum

C

In winding zone

D

Just below the lappet guide

Open complete paper

16

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

A core spun yarn of 30 tex is to be produced with 10% core by weight. If the cotton roving count is 540 tex, the required draft on the ringframe will be __________

Check answer

Open complete paper

17

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

If the spindle speed of ringframe is 15000 rpm and the traveler speed at the maximum bobbin diameter of 50 mm is 0.8% less than that of the spindle. The yarn delivery rate (m/min), to the nearest integer, will be __________

Check answer

Open complete paper

18

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

For a fully relaxed knitted fabric, the wale constant (K_w) and course constant (K_c) are 4.2 and 5.5, respectively. If the loop length is 0.5 cm, the loop density per cm², to the nearest integer, would be __________

Check answer

Open complete paper

19

2015 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2015

For a typical yarn tensile test, force (F) in Newton and elongation (e) in cm are related as under
F = 2 + 4 e + 3 e²
If the yarn fails at an elongation of 3 cm, the work of rupture in N-m, accurate up to first decimal place is __________

Check answer

Open complete paper

20

2016 · General Aptitude (GA) · General Aptitude · Numerical Computation and Estimation

Textile Engineering & Fibre Science (TF) 2016

Which of the following textile strands is the finest?

A

30s Ne

B

30 denier

C

30 tex

D

30s Nm

Open complete paper