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Homework-1 (Chapter1,2,3)

The document contains homework questions covering topics in chemical process safety including defining chemical process safety, safety principles, toxicology concepts like dose response curves, sources and control of toxicants, eliminating toxicants from the body, permissible exposure levels, industrial hygiene principles, material safety data sheets, process safety management versus risk management plans, and estimating worker exposures to toxic vapors in an enclosure.

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Bishal Lamichhane
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39 views1 page

Homework-1 (Chapter1,2,3)

The document contains homework questions covering topics in chemical process safety including defining chemical process safety, safety principles, toxicology concepts like dose response curves, sources and control of toxicants, eliminating toxicants from the body, permissible exposure levels, industrial hygiene principles, material safety data sheets, process safety management versus risk management plans, and estimating worker exposures to toxic vapors in an enclosure.

Uploaded by

Bishal Lamichhane
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Homework – 1 (Chapter 1, 2 & 3)

1. Define chemical process safety? Why it is important for Chemical Engineers?


2. Write short notes on:a)safety knowledge b)safety awareness c)Technical
competence for safety d)Process safety management e) Commitment for safety.
3. A Process has a reported FAR of 4. If an employee works a standard 4-hr shift
300 days per year, compute the deaths per person per year. If 200,000 persons
are working in company how many death per year?
4. Explain inherent safer process?
5. Explain about the Flixborough disasters. What are the lesson learned from this
accident?
6. Write short notes on a) toxicology b) toxicant c) Toxic d) Dose-response
7. Describe:
a. sources of toxicants
b. entry routes into the human body
c. control methods to enter into the human body
8. Explain how body organs eliminate toxicants ?
9. Explain ED, TD, LD with response versus log dose curve?
10. What is relative toxicity? Explain the followings:
a. Permissible exposure level
b. TLV-TWA
c. TLV-STEL
d. TLV-C
11. Explain industrial hygiene principles
12. Explain a) MSDS b) Hazard control techniques
13. Differentiate Process Safety Management (PSM) and Risk Management Plan
(RMP)?
14. Derive an expression for Estimating Worker Exposures to Toxic Vapors in an
enclosure
15. An open toluene container in an enclosure is weighted as a function of time, and
it is determined that the average evaporation rate is 0.2 g/min. The ventilation
rate is 150 ft3/min. the temperature is 800F and the pressure is 1 atm. Estimate
the conc. Of toluene vapor in the enclosure , and compare your answer to the
TLV for toluene of 50ppm.

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