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Civil Engineering – Waste water Engineering Mock test – 1

Welcome to your Waste water Engineering Mock test - 1

Take an exciting test in Waste water Engineering

You have only 20 mins to complete the test (33 Questions)

Wish you all the best!!!

For treating the sewage of a large city, you will recommend
The coagulant widely used for sewage treatment, is
For the COD test of sewage, organic matter is oxidised by K2Cr207 in the presence of
A rainfall may be classified as acidic if its pH value is less or equal to
In SI units the power of sound is represented in
Self-cleansing velocity is
Assertion (A) : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable.
Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities.
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept
House connections to the laterals is generally made by
For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed
The non-clog pump which permits solid matter to pass out with the liquid sewage, is
The rate of accumulation of sludge in septic tanks is recommended as
Disposal to sewage in large cities, is done in
In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is
For house drainage minimum gradient is
The screens are fixed
For evaporation and measurement of settlable solids, the apparatus used, is
Flocculated particles do not change their
For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is
The minimum recommended diameter of sewers, is
Pick up the in-correct statement from the following :
The asbestos cement pipes are generally laid
In olden days the type of section adopted in trunk and out fall sewers was
The ratio of minimum hourly flow to the average flow of sewage is
Dilution method of disposing off sewage, is not preferred to
If D is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is
Removal of oil and grease from sewage, is known
When drainage to sewage ratio is 20, the peak dry weather flow is
The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is
An inverted siphon is designed generally for
Chlorination of water is done for the removal of
The gas which may cause explosion in sewers, is


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5 Comments on "Civil Engineering – Waste water Engineering Mock test – 1"

  1. praveen Kumar laad | July 4, 2017 at 6:34 am | Reply


  2. Thanks for the share!

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