Related Questions

The recommended detention period for grit chambers is
A 1 minute
B 2 minutes
C 3 minutes
D 5 minutes
The grit chambers of sewage treatment plants, are generally cleaned after
A 2 days
B 7 days
C 12 days
D 14 days
What is the name of two chambers of Swiss federal chambers-
A Senate and House of representatives
B House of Lords and House of Commons
C National Council and Council of States
D None of these
The detention period in coagulation tanks is usually kept as
A 1 to 2 minutes
B 30 to 45 minutes
C 2 to 6 hours
D 2 to 6 days
The detention period for oxidation ponds is usually kept as
A 48 hours
B 24 hours
C 10 to 15 days
D 3 months
The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally
A Less and more
B Less and less
C More and less
D More and more
Four subjects ---physics, Chemistry, Mathematics and Biology ---were taught in four consecutive periods of one hour each starting from 8.00 a.m. At what time was the chemistry period scheduled? 1. Mathematics period ended at 10.00 a.m, which was preceded by Biology. 2. Physics was scheduled in the last period. 3. Mathematics period was immediately followed by Chemistry.
A Only 1
B Only 2
C Only 2 and 3
D Only 1 and either 2 or 3
the antonym of the word "grit" is
A dust
B sand
C pebbles
D timidity
In a grit chamber of a sewage treatment plant,
A Flow velocity 0.15 m to 0.3 m/sec is kept
B Depth of 0.9 m to 1.20 m is kept
C One minute of detention period is kept
D All the above
Fine grit present in sewage is removed in the __________ during sewage treatment.
A Grit chamber
B Detritus tank
C Trickling filter
D Skimming tank

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