Download GTU BE/B.Tech 2018 Winter 6th Sem New 2162903 Physical Testing Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2162903 Physical Testing Ii Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code:2162903 Date:16/11/2018

Subject Name:Physical Testing-II

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.

MARKS

Q.1 (a) Discuss the objectives of fabric testing. 03
(b) Explain various ways in which samples from fabric are to be taken
for testing.
04
(c) With neat sketch explain fabric stiffness tester. 07

Q.2 (a) Explain the principle of CRL. 03
(b) Briefly explain about the sample preparation for tensile strength
testing.
04
(c) Explain the fabric thickness gauge in detail. 07
OR
(c) Write a short note on crease recovery test. 07
Q.3 (a) Define the terms Fabric assistance and Waisting & wear 03
(b) Explain quadrant balance used for measuring fabric GSM 04
(c) Explain fabric Drapemeter with a neat sketch. 07
OR
Q.3 (a) What is cover factor? Briefly explain it. 03
(b) What is crimp rigidity? Explain briefly on the methods used to
measure it.
04
(c) With sketch explain the working of hydraulic busting strength tester. 07
Q.4 (a) Explain the factors responsible for pilling. 03
(b) Explain the effect of crimp on fabric properties. 04
(c) Explain in short the Bundesmann test for spray and drop penetration
of water.
07
OR
Q.4 (a) Define air permeability, air resistance and air porosity. 03
(b) Give the classification of abrasion test and mention the points
required to be consider while performing abrasion resistance test.
04
(c) Explain with a neat diagram the Martindle Abrasion Tester. 07
Q.5 (a) With graph explain relation between air permeability and cloth
cover.
03
(b) Define the term water proof, shower proof, water repellent and
wettability.
04
(c) Explain working of any one instrument for testing the tearing
strength of fabric.
07
OR

Q.5 (a) Define the terms crimp amplitude, crimp % and crimp interchange. 03
(b) Mention the purpose of fabric serviceability testing. 04
(c) With sketch explain Beesley?s instrument for count measurement
from fabric sample.
07

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