Download GTU BE/B.Tech 2019 Summer 5th Sem Old 150603 Environmental Engineering Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem Old 150603 Environmental Engineering Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? V(OLD) EXAMINATION ? SUMMER 2019
Subject Code:150603 Date:31/05/2019

Subject Name:Environmental Engineering

Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) How water demand for a city is calculated? Differentiate surface water and
ground water sources as per their quality.
07
(b) Classify microbes? Describe with sketch main four phases of the microbial
growth.
07

Q.2 (a) Give the standard definition of BOD and derive the equation for first stage
BOD.
07
(b) What is self-purification of river water bodies? Explain its different processes. 07
OR
(b) Describe re-oxygenation and de-oxygenation processes and explain oxygen sag
curve schematically.
07

Q.3 (a) Draw layout of house drainage system and discuss the salient features of its
components.
07
(b) Differentiate (i) one pipe and two pipe system of plumbing (ii) Nahani trap and
Gully trap
07
OR
Q.3 (a) Define(i) Rubbish (ii) Garbage (iiii) Soot (iv) Aerosol (iv) Sullage (v) COD (vi)
soil pipe (vii) water seal
07
(b) Describe different methods of solid waste disposal and compare them 07

Q.4 (a) Discuss the chemical characteristics of solid waste and calculate 5 day BOD at
20
o
C if 3 day BOD at 30
o
C is 110 mg/L and KD at 20
o
C is 0.1
07
(b) Explain different methods of solid waste collection and conveyance used in
India
07
OR
Q.4 (a) Enumerate different physical, chemical and biological characteristics of water
and discuss any one in detail.
07
(b) What is dB? Discuss the effects of noise pollution on human beings and their
remedial measures
07

Q.5 (a) Describe the effect of particulate matter and carbon monoxide as air pollutants
on humans? health.
07
(b) Schematically, describe the functioning wet scrubber and bag house as air
pollution control device.
07
OR

Q.5 (a) What are primary and secondary air pollutants? Discuss their effects on humans 07
(b) What is EIA? Discuss the methodologies of conduction of EIA 07

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