Subject Code: 173502
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER-VII(OLD) « EXAMINATION - WINTER 2017
Subject Name: Safety & Hygiene in Chemical Industries
Time: 10:30 AM to 01:00 PM
Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) What are the modes of entry of toxic chemicals into human body and ways of Inhibiting each of them? [07]
(b) Distinguish Pluff and Plume Model of dispersion. [07]
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Q.2 (a) Explain Bhopal disaster with reasons of its occurrence and suggests ways to prevent such disaster? [07]
(b) How to construct a flammability diagram? [07]
OR
(b) Discuss Dow fire and explosion index (DF&EI). [07]
Q.3 (a) Discuss detonation and deflagration in details with neat and clean diagram. [07]
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(b) Explain Dose vs Response curve in details. [07]
OR
Q.3 (a) List out the methods used for qualitative risk analysis? Explain HAZOP in detail. [07]
(b) Write a brief note on Material safety Data sheet (MSDS). [07]
Q.4 (a) What are the different pressure relief devices? Explain any two with neat sketch. [07]
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(b) Explain various fire and explosion characteristics of materials. [07]
OR
Q.4 (a) What do you mean by Isopleths? Explain steps to determine isopleths with neat and clean diagram. [07]
(b) Write a brief note about Threshold limit value (TLV). [07]
Q.5 (a) What is the significance of ERPG? Give stepwise method to determine Chemical Exposure Index? [07]
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(b) Write a brief note on the release mitigation procedure and release mitigation approaches? [07]
OR
Q.5 (a) What is dense gas? Discuss Britter and McQuaid dense gas dispersion model. [07]
(b) Describe various methods used for accident and loss measurement. [07]
Date: 18/11/2017
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