Download GTU BE/B.Tech 2019 Summer 8th Sem New 2182907 Process And Quality Control In Spinning Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2182907 Process And Quality Control In Spinning Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2182907 Date:13/05/2019

Subject Name:Process & Quality Control in Spinning

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) Define yarn realization? Write the formula to calculate yarn realization. 03
(b) Discuss the key variables for process control in spinning. 04
(c) Write a short note on HVI. 07

Q.2 (a) Define the term Quality. 03
(b) How to establish norms and standards for process control in spinning? 04
(c) Discuss the contribution of blow room, card and comber in generation of
neps.
07
OR
(c) Discuss the factors affecting PI of mill. 07
Q.3 (a) What is random irregularity in yarn? 03
(b) Give the causes and remedies for Slough off. 04
(c) Explain the causes and remedies for spinner?s double and crackers. 07
OR
Q.3 (a) Explain in brief about concept of Bale Management. 03
(b) Give the reasons for hairiness generation in yarn. 04
(c) Discuss the various factors affecting between bobbin count variation. 07
Q.4 (a) Why single yarn strength are not preferred as a measure of yarn quality? 03
(b) With a neat sketch explain working of gravity trap used in blow room line. 04
(c) Write a short note on Machinery Audit. 07
OR
Q.4 (a) What is instrumental evaluation? 03
(b) Write in brief about yarn grading system. 04
(c) Explain how optimization of cleaning and waste is done at card. 07
Q.5 (a) How to reduce end breakage rate in ring frame machine? 03
(b) Write suitable steps for controlling comber waste at comber. 04
(c) Write a short note on Nilo meter. 07
OR

Q.5 (a) What is quasi periodic irregularity in yarn? 03
(b) What is slub? How it is generated in yarn? 04
(c) Explain simultaneous control of mixing cost & quality by graphical method. 07



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