Download GTU BE/B.Tech 2019 Summer 5th Sem New 2152906 Physical Testing I Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2152906 Physical Testing I Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2152906 Date: 03/06/2019

Subject Name: Physical Testing-I

Time: 02:30 PM TO 05:00 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 objectives of textile testing. 03
(b) Explain the significance of samples in testing. 04
(c) Explain the construction & principle of working of stelometer with help
of neat sketch.
07

Q.2 (a) Define the following terms: 1. Tex 2. Denier 3. English Count 03
(b) Describe how the airflow method is used for measurement of fibre
fineness.
04
(c) Write a brief note on ?Maturity of cotton fibres & its measurement?. 07
OR
(c) Discuss the basic principle, construction & working of AFIS. 07
Q.3 (a) What is HVI? Which are properties measures by HVI? 03
(b) Discuss about ?Cotton Quality & Grading?. 04
(c) Explain the construction & principle of working of shirley trash analyser
with a neat sketch.
07
OR
Q.3 (a) What do you meant by CRE, CRL& CRT? 03
(b) Draw baer sorter diagram and derive various length parameters of cotton
fiber.
04
(c) Explain with neat sketch, how the moisture regain is measured using
Shirley Moisture Meter.
07
Q.4 (a) Describe the term Fiber Quality Index. 03
(b) What is a short, medium and long term irregularity? 04
(c) Define the term ?Span Length?. Describe briefly the instrument used to
measure it.
07
OR
Q.4 (a) What is CSP? Discuss importance of CSP in weaving Process. 03
(b) Explain quadrant balance to measure yarn count with a neat sketch. 04
(c) With the help of neat sketch, explain the principle, construction &
working of Lea Strength Tester.
07
Q.5 (a) Define Twist. Explain importance of twist. 03
(b) Compare Direct and Indirect yarn numbering system. 04
(c) With neat sketch, explain Untwist ? Retwist type twist tester. 07
OR
Q.5 (a) Define the terms: Stress, Strain, and Work of rupture. 03
(b) Explain in short about yarn hairiness measurement. 04
(c) How cutting and weighing method can be used for testing evenness
properties of spun yarn?
07

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