GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Subject Name: Physical Testing-II
Time: 02:30 PM TO 05:00 PM Total Marks: 70
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- VI (New) EXAMINATION - WINTER 2019
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Subject Code: 2162903 Date: 04/12/2019Subject Name: Physical Testing-II
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| Q.1 | (a) Define the terms: handle, drape, stiffness. [03] (b) Explain various ways in which samples from fabric are to be taken for testing. [04] (c) Explain with a neat diagram the Spray test for fabric. [07] |
| Q.2 | (a) Define the terms: crimp interchange, waisting and fabric assistance. [03] --- Content provided by FirstRanker.com --- (b) What steps need to be taken to reduce the pilling tendency of woven or knitted fabric? [04](c) Write a short note on crease recovery test. [07] OR (c) Explain the principle of CRE, CRL and CRT in brief. [07] |
| Q.3 | (a) Mention the purpose of fabric serviceability testing. [03] (b) Write short note on drape meter. [04] --- Content provided by FirstRanker.com --- (c) Discuss the methods used for determining the fabric weight. [07]OR (a) State the various parameters affecting the tearing strength of the fabric. [03] (b) What is crimp rigidity? Explain briefly on the methods used to measure it. [04] (c) Explain with a neat diagram the principle and working tensile strength tester. [07] |
| Q.4 | (a) How drapability of a fabric can be improved? [03] --- Content provided by FirstRanker.com --- (b) Give the classification of Abrasion test and mention the points required to be consider while performing abrasion resistance test. [04](c) With the help of neat sketch, explain the Thickness Gauge [07] OR (a) Define the term water proof, shower proof, water repellent [03] (b) Write short note on cloth cover. [04] --- Content provided by FirstRanker.com --- (c) Define the term Bending Modulus & Flexural Rigidity. Also give their significance. [07] |
| Q.5 | (a) Define air permeability, air resistance and air porosity [03] (b) Write short note on bending length. [04] (c) Explain the working of hydraulic busting strength tester with a neat sketch. [07] OR (a) What are the objects of fabric testing? [03] --- Content provided by FirstRanker.com --- (b) Define the terms: wear and pill. What will be the effect of pilling on fabric? [04](c) Discuss the methods used for determining the threads per inch in fabric. [07] |
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