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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENVIRONMENTAL ENGINEERING SEMESTER IV • EXAMINATION SUMMER 2018
Subject Code: 3361302 Date: 01- 05- 2018
Subject Name: ENVIRONMENTAL MONITORING
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1
Answer any seven out of ten.
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1.
Define the term 'Environmental Monitoring'.


2.
Define the term 'Environmental Variability'.


3.
Define the term 'Grab sample'.


4.
Define the term 'Composite sample'.


5.
What is Dissolve Oxygen?


6.
Name any four instruments used in an environmental science laboratory.


7.
How to select location of monitoring?


8.
Define the term 'Molar solution'.


9.
Define the term 'Standard solution'.


10.
Define the term 'Alkalinity'.


Q.2

Explain in brief functions of Environmental Monitoring.
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OR

Draw neat sketch of 'Dissolved Oxygen sampler'
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Write short note on "Transportation of samples".
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OR

Draw neat sketch of 'Sample bottle holder' for water sampling.
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Explain in brief about 'Error'.
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OR

Explain about 'Accuracy' for analytical procedure with example.
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Write short note on 'When to Monitor' Environmental Monitoring?
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OR

Write about location 'Type and 'Type stations for selecting of monitoring sites.
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Q.3

How to select 'Time of monitoring'?
03
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OR

Write unit of the following parameters:
pH Alkalinity COD.
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pH


What is the importance of 'Standardization of solution'?
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OR

Explain types of monitoring programme.
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How many grams of NaOH do you need for preparation of 0.50N in 0.5 liter of the NaOH solution?
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NaOH NaOH

OR

If EDTA molarity is lower how will you make exact 0.01M EDTA. Give suitable example.
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EDTA M EDTA M EDTA


Find out Molecular Weight and Equivalent Weight of following Chemicals:

H2SO4 CaCO3.
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H2SO4 CaCO3.

OR
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Explain about 'Sample Container'.
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Q.4

Explain in brief Environmental Significant of
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OR

State principle of 'Acidity'.
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Write application of 'C.O.D.' data.
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OR

Write application of 'B.O.D.' data.
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Write sampling procedure and calculation for determination of
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.

Q.5

Explain about 'Precision' for analytical procedure with example.
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What is the importance of time interval between 'Collection and analysis' of liquid sample?
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List out chemicals and reagents required for measurement of nitrogen dioxide present in ambient air.
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Explain in brief objective of 'Environmental Monitoring'.
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