Water Supply And Waste water Engineering Question Paper of 3rd Semester AE(D) Download Previous Years Question Paper 1

S.B. Roll. No. __________

WATER SUPPLY AND WASTE WATER ENGINEERING

4th Exam/Civil/4451/5108/Dec’11

Duration 3 Hrs.

Section A

Q1. Fill in the blanks

a. During fire the demand rate of water in __________.

b. The instrument used for testing adour is called __________.

c. Turbidity is due to __________ impurities.

d. A.C pipes are made of __________ and cement.

e. Dual system means __________.

f. The distribution system should be fairly __________.

g. When pipe is laid above the ground it facilitates __________ and __________.

h. Ferrule is made of __________.

i. The lower most surface of sewer is called __________.

j. Storm water means __________.

k. Masonary sewers are used when the size is __________.

l. The house drain should be provided with __________ for disconnecting it from sewer.

m. The pipe installed to pressure the water seal of trap in called __________.

n. Arobic bacterias exist in the pressence of __________.

o. Screens are usually laid at an angle of __________.

Section B

Note: Attempt any ten questions

Q2 i. Name the factors affecting per capita demand.

ii. What do you means by population forcasting?

iii. Name the varius chemical tests conducted on water.

iv. Define coagulants are their purpose

v. What is the necessity of disinfection of water?

vi. What is the man hole and what are its function?

vii. Explain the function of floculator.

viii. Explain the uses of PVC pipe?

ix. Explain joints for cast iron pipe.

x. What are the advantages of conservancy system?

xi. Differentiate between grease and oil traps.

xii. What are the advantages of band treatment?

xiii. Explain the process of self purification of streams

xiv. What are the requirements of good building drainage?

xv. Name different types of pipe for water supply.

Section C

Note: Attempt any three questions

Q3. Write notes on the following and draw their neat sketches.

i. Flanged joint

ii. Screw

iii. Socket joint

Q4 a. What is water supply system?

b. What is necessity of water supply system?

 Q5. Explain sedimentation and its various types in detail. Explain process of plain sedimentation.

Q6 a. What are aims of building drainage?

b. How will you check the gradient of sewer?

Q7. What are the advantages and disadvantages of conservancy method and water carriage system.