List of top Textile Engineering and Fibre Science Questions on Fabric Manufacture, Structure and Properties asked in GATE TF

A cotton fabric is given crease resist finish with 60 g/L DMDHEU (molecular weight = 178) aqueous solution by continuous method. The density of the padding liquor is 1.1 g/cm3 and the wet pick up is 110 %. Assuming that the entire DMDHEU on the fabric is consumed during cross-linking reaction with cellulose, the nitrogen content (%) of the finished fabric (rounded off to 2 decimal places) is ____
A fluorocarbon-based soil release finish consists of alternating hydrophobic blocks and hydrophilic blocks arranged side by side on fabric surface. The correct statement(s) amongst the following is/are
With reference to Shirley stiffness tester, the relationship between the fabric bending length (C) and the overhanging length (L) at the standard angle of deflection of 41.5° is approximately
In a multiplicative type tensioner, the angle of wrap is 90° and the coefficient of friction between the yarn and the guide is 0.2. If the input yarn tension is 10 cN, then the output yarn tension (cN) is (rounded off to 1 decimal place) ______________.
Consider the following statements with respect to a cotton fabric which has been fully desized and bleached but not scoured:
P. It has residual seed coat fragments
Q. It has poor water absorbency
R. It has high whiteness index
S. It has high crease recovery
The combination of TRUE statements is:
A set of yarns is produced with the same linear density. If these yarns follow a helical model and their diameter is inversely proportional to twist (turns per unit length), then the yarns have the same:
Consider the following statements for a shuttle loom having linear (straight line) displacement profile for the picker:
P. The maximum actual acceleration of shuttle depends on loom speed and alacrity of picking system
Q. The maximum actual velocity of shuttle depends on loom speed
R. The maximum actual acceleration and maximum actual velocity of shuttle occur at the same time
S. Nominal displacement of shuttle is inversely proportional to the angular movement of crank shaft
The combination of TRUE statements is:
Eight-end regular sateen fabric can be woven with move (step) numbers of:
Determine the correctness or otherwise of the following Assertion [a] and Reason [r].
A yarn is unravelled from a woven fabric specimen of 1 m $\times$ 1 m size. If the length of the straightened yarn is 1.1 m, then the crimp percentage (in integer) is ________________.
In a projectile loom, the energy stored in a torsion rod just before picking is proportional to \( r^n \). If \( r \) is the radius of the torsion rod, then the value of \( n \) (in integer) is ________________.
Cusick drape test on a fabric specimen results in a drape coefficient of 0.7. If the total mass of the paper ring is 3.0 g, then the mass (g) of the paper with shaded area (correct up to 1 decimal place) is ________________.
If moisture regain of polyester and cotton is 0.4 % and 8.5 %, respectively, then moisture regain (%) of 70:30 polyester-cotton blend (correct up to 2 decimal places) is ________________.
The ingredient that is NOT used in sizing formulations is
The machine that uses ‘Horn gears’ is