Textile Engineering Gate 2011 Questions with Answer
Ques 53 GATE 2011
Warp and weft yarns with diameters of 0.4 mm and 0.6 mm, respectively, are used to produce plain woven fabric with end spacing of 0.8 mm and pick spacing of 1.2 mm. Assuming the degree of flattening to be 0.8 in both warp and weft yarns, the approximate fabric cover would be
Ques 54 GATE 2011
If the error in the measurement of the diameter of a yarn is 0.5%, the error in the estimated cross-sectional area of this yarn would be
Ques 55 GATE 2011
For a given yarn count made from the same fibre, rotor spun yarn is bulkier than ring spun yarn, because
Ques 56 GATE 2011
Consider the statement, 'off-setting the front top drafting roller towards the front is beneficial in a ring spinning machine'. Which one of the following CANNOT be the reason for the same?
Ques 57 GATE 2011
20s, 30s, 40s and 50s Ne cotton yarns have the same twist per cm. The yarn having maximum fibre obliquity is
Ques 58 GATE 2011
During roller drafting, better fibre control is achieved by flexing the fibre strand over the bottom roller. The reason for this is
Ques 59 GATE 2011
In a drum driven winder
Ques 60 GATE 2011
The delivery rate of a roving machine is 20 m/min. Assuming the flyer speed as 1000 rpm, inner diameter of the flyer top as 1 cm, diameter of roving as 2.5 mm, and the slippage between the flyer top and roving as 50%, the false twist (turns/m) in the roving above the flyer is
Ques 61 GATE 2011
Determine the correctness or otherwise of the following assertion [a] and reason [r].
[a] When the bales are highly compressed, photo cells near the inclined spiked lattice of a Hopper bale opener are set at a lower height.
[r] Position of photo cells controls the mass flow rate of tufts within the Hopper bale opener.
Ques 62 GATE 2011
The ring rail moves up and down in a cyclic manner during formation of a cop. The combination of events occurring during upward traverse of the ring rail is
P) Traveller speed decreases
Q) Balloon tension decreases
R) More yarn is wound by the traveller
S) Balloon tension increases
Ques 63 GATE 2011
Match the items in Group I with those in Group II.
| Group I | Group II |
|---|---|
| P. Ring spinning | 3. Real twist, mechanical twisting, high fibre migration, roller drafting |
| Q. Rotor spinning | 1. Real twist, mechanical twisting, low fibre migration, aerodynamic drafting |
| R. Air-vortex spinning | 4. Real twist, aerodynamic twisting, high fibre migration, roller drafting |
| S. Air-jet spinning | 2. False twist, aerodynamic twisting, low fibre migration, roller drafting |
Ques 64 GATE 2011
A card with a doffer of diameter 60 cm, fed with a lap of 395 ktex delivers sliver of 3.95 ktex. The draft between the doffer and the coiler calender roller is 1.4. The total draft of the card is
Ques 65 GATE 2011
A card with a doffer of diameter 60 cm, fed with a lap of 395 ktex delivers sliver of 3.95 ktex. The draft between the doffer and the coiler calender roller is 1.4.
If the doffer speed is 50 rpm, the approximate production rate of the card in kg/h would be
Total Unique Visitors