Textile Engineering Gate 2016 Questions with Answer

Ques 53 GATE 2016

A fabric specimen of original length 75 mm is stretched to a length of 120 mm and after removal of the load the length reduces to 95 mm. The elastic recovery (%) of the fabric specimen is

Ques 54 GATE 2016

A sector-shaped, falling-pendulum type apparatus is suitable for measurement of

Ques 55 GATE 2016

Which of the following combination of statements from options A, B, C and D is correct?
1. X-ray Diffraction gives information about crystallinity and crystal size in semicrystalline polymers.
2. Differential Scanning Calorimetry gives information about $T_g$, $T_m$ and $T_c$ as well as enthalpy of melting and crystallization.
3. In Scanning Electron Microscopy the sample has to be coated with silver to make it conducting.
4. Birefringence is a measure of molecular orientation in amorphous phase only.

Ques 56 GATE 2016

A cotton yarn with 5% breaking elongation needs to be tested for breaking strength in a tensile tester at 500 mm gauge length. The clamp speed (mm/min) required to break the specimen in 20 s is

Ques 57 GATE 2016

The flexural rigidity, expressed in 10⁻⁴ mg cm, of a fabric test specimen of 100 g/m² areal density and 0.40 mm length of overhang determined using a cantilever test with a standard angle of deflection of 41.5°, is

Ques 58 GATE 2016

In a carding machine, in which of the following zones the fibre alignment is negatively affected to the maximum extent?

Ques 59 GATE 2016

Which of the following is the correct sequence of events which happen in a roller drafting zone?

Ques 60 GATE 2016

In which region of ring spinning, Coriolis force acts?

Ques 61 GATE 2016

The time required (minutes) to wind 10 kg of 40 tex yarn when the winding machine works at 1000 m/min with an efficiency of 90% is

Ques 62 GATE 2016

A rotor with 48 mm diameter running at 90,000 rpm is producing yarn at 140 m/min. The number of doublings of fibre layers in the rotor is

Ques 63 GATE 2016

Consider the following assertion [a] and reason [r] and choose the correct alternative from amongst A, B, C and D.
[a] Compared to ring spun yarns, rotor spun yarns have better evenness for the same yarn count.
[r] Rotor spun yarns have more number of fibres in the yarn cross section compared to ring spun yarns of same count.

Ques 64 GATE 2016

The final yarn count required from a ring frame is 36s Ne with 28 TPI. The twist contraction during spinning is 3%. If the feed roving count is 2s Ne, the mechanical draft required in the ring frame will be

Ques 65 GATE 2016

The rotational speed of a card cylinder with locally damaged card clothing is 400 rpm and the sliver delivery rate is 100 m/min. The wavelength (m) of the periodic mass variation in the card sliver is