Envlmnt No.
GUJARAT TECHNOLOGICAL UNIVERSITY
--- Content provided by FirstRanker.com ---
BE - SEMESTER- V (New) EXAMINATION - WINTER 2019
Subject Code: 2153905 Date: 29/11/2019
Subject Name: Nanotechnology and Environment
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
--- Content provided by FirstRanker.com ---
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
MARKS
Q.1 (a) What is risk? 03
--- Content provided by FirstRanker.com ---
(b) Explain : Pulmonary effects of CNTs 04
(c) Write down specific applications of nanotechnology that beneficial for environment. 07
Q.2 (a) What do you mean by Human Health Hazards? 03
(b) Explain Inhalation nanoparticles? 04
(c) In the risk assessment process, explain exposure assessment. 07
--- Content provided by FirstRanker.com ---
OR
(c) Write a short note on Dose-Response Assessment. 07
Q.3 (a) Define: Photo catalyst 03
(b) Explain MSF and MED process for water desalination 04
(c) Write a shot note on working of TiO2 as semiconductor photo catalyst. 07
--- Content provided by FirstRanker.com ---
OR
Q.3 (a) What is aquaporin membrane? 03
(b) Write a note on Hazards caused by prolonged exposure to arsenic contaminated soil and water. 04
(c) Explain: organic-inorganic membranes 07
Q.4 (a) List out type of membranes in the vicinity of size. 03
--- Content provided by FirstRanker.com ---
(b) What do mean by arsenic contamination? 04
(c) Explain: desalination of sea water. 07
OR
Q.4 (a) Write note on WHO guidelines for allowed Arsenic content in drinking water. 03
(b) Explain role of nanoparticles for water treatment. 04
--- Content provided by FirstRanker.com ---
(c) Explain role of various factors which affect the photo catalytic process. 07
Q.5 (a) Write down simple oxidation and reduction process involved in the treatment of Arsenic. 03
(b) Give your idea about Arsenic treatment using nanoparticles other than TiO2. 04
(c) Write short note on biologically inspired membranes in the vicinity of nanotechnology. 07
OR
--- Content provided by FirstRanker.com ---
Q.5 (a) What do you mean by solar disinfection process? 03
(b) Explain removal of arsenic using nanostructured TiO2. 04
(c) Write a note on nanostructured ceramic membrane for waste water treatment. 07
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University