List of top Textile Engineering and Fibre Science Questions on Textile Fibres and its Classification asked in GATE TF

Which spinning system produces yarn directly from sliver without roving?
Which fibre has the highest moisture regain under standard atmospheric conditions?
For crease resist finishing of cotton, 70 gpl aqueous solution of DMDHEU (molecular weight - 178) is applied by padding. If the DMDHEU is available as 50% (w/v) aqueous solution, then the required amount of DMDHEU solution (ml) for preparation of 1000 ml padding liquor is:
A needlepunching machine has two needle boards which operate sequentially at the same frequency to produce nonwoven with 200 punches/cm\(^2\). Each needle board has 40000 needles per meter width. If the delivery speed of the machine is 80 m/min, then the frequency (strokes/min) of each needle board is:
In a water vapour transmission test of a fabric by evaporative dish method, the initial mass of the dish is 198 g. After 20 h of test, the mass of the dish becomes 188 g. The inner and outer diameters of the dish are 6.5 cm and 6.9 cm, respectively. The water vapour transmission rate (g/m\(^2\)/h) of the fabric is:
A blowroom line has three beaters, each having a trash removal efficiency (cleaning index) of 30%. The trash removal efficiency (%) of the blowroom line (rounded off to 1 decimal place) is _________
The molarity (moles per litre) of 34% (w/v) H\(_2\)O\(_2\) aqueous solution (answer in integer) is _________.
If \( u(x, y, z) = x^2y + y^2z + z^2x \), the value of \[ \frac{\partial u}{\partial x} + \frac{\partial u}{\partial y} + \frac{\partial u}{\partial z} { at the point } (1,1,1) { is:} \]
For crease resist finishing of cotton, 70 gpl aqueous solution of DMDHEU (molecular weight - 178) is applied by padding. If the DMDHEU is available as 50% (w/v) aqueous solution, then the required amount of DMDHEU solution (ml) for preparation of 1000 ml padding liquor is:
A needlepunching machine has two needle boards which operate sequentially at the same frequency to produce nonwoven with 200 punches/cm\(^2\). Each needle board has 40000 needles per meter width. If the delivery speed of the machine is 80 m/min, then the frequency (strokes/min) of each needle board is:
Amongst the following, the machine(s) that remove(s) neps is/are:
Amongst the following, the correct statement(s) for regenerated cellulosic fibres is/are:
Determine the correctness or otherwise of the following Assertion [p] and Reason [r].
[p]: The melting temperature of polyester (PET) fibres is higher than that of Nylon 6 fibres
[r]: The hydrogen bonding in PET is stronger than that in Nylon 6
A blowroom line has three beaters, each having a trash removal efficiency (cleaning index) of 30%. The trash removal efficiency (%) of the blowroom line (rounded off to 1 decimal place) is _________
Amongst the following, the chromophore(s) is/are:
In a water vapour transmission test of a fabric by evaporative dish method, the initial mass of the dish is 198 g. After 20 h of test, the mass of the dish becomes 188 g. The inner and outer diameters of the dish are 6.5 cm and 6.9 cm, respectively. The water vapour transmission rate (g/m\(^2\)/h) of the fabric is:
A series of plain knitted fabrics has varying stitch length (\( \ell \)). The fabrics are composed of cotton yarns having same packing density but differing in linear density (\( T \)). The ratio between tightness factor and areal density of the fabrics is proportional to
The molarity (moles per litre) of 34% (w/v) H\(_2\)O\(_2\) aqueous solution (answer in integer) is _________.
With reference to cotton fibre testing systems, the correct statement(s) amongst the following is/are
Amongst the following, the nitrogen containing fibre(s) is/are
Cotton fibre has maximum amount of cellulose in
High extensibility of wool fibre is due to: