Water Supply & Waste Water Engg.WSWWE 4th Civil Dec 2017 Paper

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Water Supply & Waste 4th Semester Civil/0514/Dec 2017 Paper

SECTION-A

Q 1 a) Fill in the Blanks 15×1=15

a) Process of partial or complete removal of residual chlorine in water is known as Chlorination .
b) Salt is the main substance in chloride water.
c) Air Valve is placed on the d/s side of all other gate valves.
d) BOD is a measure for finding out the Strength of sewage.
e) For the inspection of reservoirs intake pipes are provided.
f) Masonry sewers are used when the size is large
g) Chlorides should not be more than 100 ppm.
h) A trap provided at the junction of house drain and street sewer is known as House drainage system
i) The water closet is provided for receiving Human Excreta .
j) The pipe installed to preserve the water seal of trap is called anti-syphonage system .

b) State True or False.

k) Trickling filters are used to treat the sewage. (True)
l) Ozone is very efficient disinfectant. (True)
m) Lime when added to water decreases the PH of water. (False)
n) G.I pipes are used for house drainage. (False)
o) Coagulation is needed when size of the particle is large. (True)

SECTION-B

Q2. Attempt any five questions. 5×6=30

a) Why analysis of water is done? Explain.
b) Explain the term Per Capita Demand?
c) Explain the action of chlorine used for disinfection of water.
d) Explain skimming tanks used for the removal of floating matters.
e) Explain the term COD and BOD.
f) Explain the advantages and disadvantages of land treatment method of disposal of sewage.
g) Explain the requirements of good sewer joints.
h) Discuss the various tests for testing the house drainage.
i) Describe the sources of dry weather flow

SECTION-C

Q3. Attempt any three questions. 3×10=30

Q3. Explain the various appurtenances used for controlling the flow of water with sketches briefly.
Q4. Explain different methods of sewage disposal?
Q5. Explain the classification of sewers according to construction materials.
Q6. Explain the various operations to be followed for laying underground pipes.
Q7. Explain the various water supply fixtures and fittings with sketch.

Water Supply & Waste 4th Sem Civil/0514/dec 2017 Paper

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Section a FILL IN THE BLANKS Water Supply & Waste Water Engg. 4th Sem Civil/0514/dec 2017 Paper

a) Process of partial or complete removal of residual chlorine in water is known as ________

Process of partial or complete removal of residual chlorine in water is known as Chlorination .

b) _____ is the main substance in chloride water..

Salt is the main substance in chloride water.

c) _____ Valve is placed on the d/s side of all other gate valves.

c) Air Valve is placed on the d/s side of all other gate valves.

d) BOD is a measure for finding out the ______ of sewage.

BOD is a measure for finding out the Strength of sewage.

e) For the inspection of reservoirs ________ are provided

For the inspection of reservoirs intake pipes are provided.

f) Masonry sewers are used when the size is ______

Masonry sewers are used when the size is large

g) Chlorides should not be more than ______ ppm.

Chlorides should not be more than 100 ppm.

h) A trap provided at the junction of house drain and street sewer is known as _______

A trap provided at the junction of house drain and street sewer is known as House drainage system

i) The water closet is provided for receiving ________

i) The water closet is provided for receiving Human Excreta .

j) The pipe installed to preserve the water seal of trap is called ________

The pipe installed to preserve the water seal of trap is called anti-syphonage system .

b) State true or false.

k) Trickling filters are used to treat the sewage.

(True)

l) Ozone is very efficient disinfectant.

(True)

m) Lime when added to water decreases the PH of water.

(False)

n) G.I pipes are used for house drainage.

(False)

o) Coagulation is needed when size of the particle is large.

(True)

Download Previous Year Water Supply and Waste Water Engineering PSBTE Diploma Solved Paper Dec 2017 Click Here

Section B :Water Supply & Waste Water Engg. 4th Sem Civil/0514/DEC 2017 Paper

Why analysis of water is done? Explain.

Explain Why analysis of water is done

Explain the term Per Capita Demand?

Term Per Capita Demand

Explain the action of chlorine used for disinfection of water.

Action of chlorine used for disinfection of water.

Explain skimming tanks used for the removal of floating matters.

Skimming tanks used for the removal of floating matters.

Explain the term COD and BOD.

Term COD and BOD.

Explain the advantages and disadvantages of land treatment method of disposal of sewage.

Advantages and disadvantages of land treatment method of disposal of sewage.

Explain the requirements of good sewer joints.

Requirements of good sewer joints.

Discuss the various tests for testing the house drainage.

Various tests for testing the house drainage.

Describe the sources of dry weather flow

Sources of dry weather flow

Water Supply and Waste Water Engg WSWWE Civil 4th Semester PSBTE Diploma Solved Dec 2017 Paper Click Here

Water Supply & Waste Water Engg. 4th Sem Civil/0514/may 2019 Paper

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