Download GTU BE/B.Tech 2018 Winter 5th Sem New 2152908 Weaving Technology Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2152908 Weaving Technology Ii Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2152908 Date:11/12/2018

Subject Name:Weaving Technology-II

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS


Q.1 (a) Calculate the loom production in meters per shift of 8 hours, if loom runs
at 180 ppm with 80% efficiency. The cloth contains 24 picks/cm.
03
(b) Draw a neat sketch of passage of yarn and cloth through the loom. 04
(c) Discuss in detail about shedding mechanism with a neat sketch. 07

Q.2 (a) Explain loom timing with diagram with respect to shuttle, picker and
healds.
03
(b) Give the function of temple and back rest. 04
(c) Discuss in detail about construction & working of cam/tappet dobby with
a neat sketch.
07
OR
(c) Describe the construction & working of loose reed motion with a neat
sketch.
07
Q.3 (a) Give a formula for power required for picking. 03
(b) Explain semi-open and bottom close sheds. 04
(c) Give the construction and working of cone over pick motion. 07
OR
Q.3 (a) Give functions of selvedge. 03
(b) Explain the function of check strap and box swell. 04
(c) Discuss about the construction and working of Beat-up motion. 07
Q.4 (a) Give classification of looms. 03
(b) Prove that Dividend of 7 wheel take up motion is nearly 1. 04
(c) Explain the construction and working of side weft fork mechanism.

07
OR
Q.4 (a) Give the difference between 7 wheel and 5 wheel take-up motion. 03
(b) Compare loose reed and fast reed motions. 04
(c) Draw only a neat sketch of Eccles drop box mechanism with name of the
parts.
07
Q.5 (a) State the objects of Let-off motion. 03
(b) How the box leveling device operates in drop-box mechanism? 04
(c) Explain the construction and working of pick-at-will motion. 07
OR

Q.5 (a) What is the role of lag-lattice in dobby? 03
(b) Explain the functions of picker and reed. 04
(c) Give the construction and working of mechanical type warp stop motion
with a neat sketch.
07



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