Download GTU BE/B.Tech 2018 Winter 7th Sem Old 172901 Modern Spinning Technology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem Old 172901 Modern Spinning Technology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 172901 Date: 29/11/2018

Subject Name: Modern Spinning Technology

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.

Q.1 (a) Write in brief about Siro spinning along with a neat sketch. 07
(b) Explain why rotor spinning is not economically suitable to spun finer count? 07

Q.2 (a) Explain the working of DREF 3 and DREF 2000 friction spinning system with
neat sketches.
07
(b) Give the classification of the air jet spun yarn structure. 07
OR
(b) Describe wrap spinning system with a neat sketch. 07

Q.3 (a) Explain any Twistless spinning system working on principle of permanent
adhesion with neat sketch.
07
(b) Describe ROCOS spinning system with a neat sketch. 07
OR
Q.3 (a) Briefly explain integration of straight and hooked fiber into yarn in rotor spinning
system.
07
(b) Discuss the problem of rotor deposit in rotor spinning. How it will influence yarn
quality in rotor spinning.
07

Q.4 (a) Write short note on the following: (i). Spinning in coefficient, and (ii). Maximum
spinning time.
07
(b) List out the features of G 30 ring frame machine. 07
OR
Q.4 (a) Explain how yarn properties are influenced by Compact spinning system. 07
(b) Discuss advantages and disadvantages of hollow spindle spinning. 07

Q.5 (a) Describe features of Trutzschler BDT 020 spinning line. 07
(b) Describe parafill spinning system with a neat sketch. 07
OR

Q.5 (a) What are the advantages and disadvantages of high rotor speed in rotor spinning? 07
(b) Discuss the major limitations of air jet spinning. 07

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