Download GTU B.Tech 2020 Winter 5th Sem 3151302 Advance Environmental Instrumentation Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 5th Sem 3151302 Advance Environmental Instrumentation Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?V (NEW) EXAMINATION ? WINTER 2020
Subject Code:3151302 Date:01/02/2021
Subject Name:Advance Environmental Instrumentation
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.



Marks
Q.1 (a) Give the modern classification of chromatographic techniques with one example of
03
each.

(b) Write a short note on pH meter
04

(c) What is Advanced Environmental Instrumentation? What is its Importance?
07


Q.2 (a) Draw the figure of pH electrode and explain its working principle
03

(b) Give the difference between visible and instrumental method for measurement of
04
turbidity.

(c) Explain the working principle and operation of each unit of Nephelo turbidity meter
07
with neat sketch.
Q.3 (a) Explain the conductivity meter.
03

(b) Explain the merits of gas chromatography.
04

(c) Derive and explain Lambert's and Beer's law
07




Q.4 (a) What do you mean by Online sensors?
03

(b) List down components of Flame photometer. Explain each component.
04

(c) State the applications of High Performance Liquid Chromatography.
07
Q.5 (a) Explain the Principle of UV ? Visible Spectroscopy with it's applications in
03
Environmental Engineering.

(b) Describe the Double Beam UV ? Visible Spectrophotometer with neat sketch.
04

(c) Explain the working principle and operation of each unit of High Performance
07
Liquid Chromatography with sketch.



Q.6 (a) Write applications of Potentiometry.
03

(b) Discuss the application of TOC analyzer in environmental engineering field.
04

(c) Explain in detail sensor method for determination of dissolved oxygen.
07
Q.7 (a) Enlist the types of Detectors used in Spectroscopy.
03

(b) Write down the application, advantages and disadvantages of Ion Selective
04
Electrode.

(c) Explain the working principle and operation of each unit of Colorimeter with sketch.
07



Q.8 (a) Differentiate between Accuracy and precision with example
03
(b) Define the types of determinate errors with at least one example of each.
04
(c) Define the following terms in detail: (i) Mean (ii) Medium (iii) Range (iv) Average
07
Deviation (v) Relative average deviation (vi) Standard deviation (vii) Co-efficient of
variation.

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