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

FirstRanker.com

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (NEW) EXAMINATION - WINTER 2018

--- Content provided by​ FirstRanker.com ---

Subject Code:2162903 Date:16/11/2018
Subject Name:Physical Testing-I1
Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.

--- Content provided by⁠ FirstRanker.com ---

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 04 for testing.

--- Content provided by⁠ FirstRanker.com ---

(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 04 testing.
(c) Explain the fabric thickness gauge in detail. 07
OR

--- Content provided by FirstRanker.com ---

(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

--- Content provided by‍ FirstRanker.com ---

Q.3 (a) What is cover factor? Briefly explain it. 03
(b) What is crimp rigidity? Explain briefly on the methods used to 04 measure it.
(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

--- Content provided by‌ FirstRanker.com ---

(c) Explain in short the Bundesmann test for spray and drop penetration 07 of water.
OR

Q.4 (a) Define air permeability, air resistance and air porosity. 03
(b) Give the classification of abrasion test and mention the points 04 required to be consider while performing abrasion resistance test.
(c) Explain with a neat diagram the Martindle Abrasion Tester. 07

--- Content provided by⁠ FirstRanker.com ---

Q.5 (a) With graph explain relation between air permeability and cloth 03 cover.
(b) Define the term water proof, shower proof, water repellent and 04 wettability.
(c) Explain working of any one instrument for testing the tearing 07 strength of fabric.
OR

Q.5 (a) Define the terms crimp amplitude, crimp % and crimp interchange. 03

--- Content provided by​ FirstRanker.com ---

(b) Mention the purpose of fabric serviceability testing. 04
(c) With sketch explain Beesley’s instrument for count measurement 07 from fabric sample.

FirstRanker.com