Download GTU BE/B.Tech 2018 Winter 6th Sem Old 160604 Water And Waste Water Engineering Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem Old 160604 Water And Waste Water Engineering Previous Question Paper

www.FirstRanker.com
1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VI (OLD) EXAMINATION ? WINTER 2018
Subject Code:160604 Date: 30/11/2018

Subject Name: Water & Waste Water 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) Enlist different types of water demand. Explain the different factors affecting the
water demand.
07
(b) Enlist different methods of population forecast. Explain any three methods in
detail.
07

Q.2 (a) Explain the factors affecting the site selection for an intake structure. 07
(b) Draw the layout of a water treatment plant. Explain function of each unit. 07
OR
(b) What are the different types of pipes used for water supply? Discuss, Cast iron
pipes and Concrete pipes in details.
07

Q.3 (a) Enlist various sewer appurtenances and write short note on any one. 07
(b) What do you understand by a trickling filter? Explain with the help of a neat
sketch, the biological process involved in working of a trickling filter.
07
OR
Q.3 (a) What is meant by activated sludge? Describe with sketches the treatment of
sewage by activated sludge process. Mention the advantages and disadvantages
of this system.
07
(b) Draw the neat sketch of a clariflocculator and show its various parts. 07

Q.4 (a) How will you find out optimum dose of Alum? Explain the experiment in detail. 07
(b) Explain daily variation of sewage flow. How will you estimate the wastewater
discharge for design of a wastewater treatment plant?
07

OR
Q.4 (a) Write short notes on:
(i) Methods of disinfection (ii) Distribution networks
07
(b) Why biological treatment is necessary? Differentiate suspended growth process
and attached growth process.
07

Q.5 (a) Draw a complete flow diagram of wastewater treatment plant and describe the
function of its each unit.
07
(b) Compare Slow Sand Gravity Filter and Rapid Sand Gravity Filter. 07
OR

Q.5 (a) Explain design criteria for plain sedimentation tank. 07
(b) Explain zeolite process for water softening with its merits and demerits. 07

*************
www.FirstRanker.com www.FirstRanker.com
www.FirstRanker.com
FirstRanker.com - FirstRanker's Choice