Related Questions

The percentage of filtered water, which is used for backwashing in rapid sand filters, is about
A 0.2 to 0.4
B 0.4 to 1.0
C 2 to 4
D 5 to 7
Cartridge filters are termed as 'edge' filters, because of the fact that the
A Disks have very sharp edge
B Solids are not deposited at the edge of the disk
C Bulk of the solids are removed at the periphery of the disks
D None of these
Air binding phenomena in rapid sand filters occur due to
A Excessive negative head
B Mud ball formation
C Higher turbidity in the effluent
D Low temperature
Find out which quotation parts of the following sentences has an error. If one 'wants' to keep up with the rapid advances in the rapid advances in work place 'technology' 'they' must plan 'to take' frequent refresher courses.
A wants
B technology
C they
D to take
In water treatment plant, zeolite process is used to remove the __________ of water.
A Acidity
B Alkalinity
C Hardness
D Iron & zinc
The yield of a rapid gravity filter as compared to that of slow sand filter, is
A 10 times
B 15 times
C 20 times
D 30 times
In order to remove internal stresses produced by hardening the steel, the process usually adopted is
A Tempering
B Normalizing
C Annealing
D Spheroidizing
Rabindranath Tagore's 'Jana Gana Mana' has been adopted as India's National Anthem. How many stanzas of the said song were adopted?
A Third and Fourth stanza
B The whole song
C First and Second stanzav
D Only the first stanza
Gravity setting chambers are used in industries to remove
A Nox
B SOx
C CO
D suspended particulate matter
Gravity setting chambers are used in industries to remove -
A SoX
B suspended particulate matter
C CO

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