WASTE WATER ENGINEERING QUIZ

If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is

1.75 D

1.15 D

1.25 D

1.5 D

TRUE ANSWER : ?
YOUR ANSWER : ?

The detention period for plain sedimentation water tanks, is usually

16 to 24 hours

4 to 8 hours

24 to 36 hours

8 to 16 hours

TRUE ANSWER : ?
YOUR ANSWER : ?

Pathogens (or pathogenic bacterias) in water may cause

Cholera

Typhoid

Dysentery

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called

Sag pipe

all of these

Depressed sewer

Inverted syphon

TRUE ANSWER : ?
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A sewer running partially full and hurried with back filled, fails in compression due to

All listed here

Weight of the pipe

Superimposed traffic loads

Weight of the back fill

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?

None of these

Centrifugal pump

Reciprocating pump

Pneumatic ejector

TRUE ANSWER : ?
YOUR ANSWER : ?

Inter-distance between ventilation columns in a sewer line is kept

150 m to 300 m

25 to 50 m

100 m to 150 m

50 m to 100 m

TRUE ANSWER : ?
YOUR ANSWER : ?

The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

Sewer outfall

Lateral sewer

House sewer

Branch sewer

TRUE ANSWER : ?
YOUR ANSWER : ?

If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is

1.625 D

1.250 D

1.425 D

1.350 D

TRUE ANSWER : ?
YOUR ANSWER : ?

The porosity of sediments in sewer pipes, is usually taken as

0.011

0.013

0.01

0.012

TRUE ANSWER : ?
YOUR ANSWER : ?

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