Standard unit of turbidity of water is in one litre of distilled water, one milligram of finely divided (A) Silica (B) Mud (C) Clay (D) Organic matter

Standard unit of turbidity of water is in one litre of distilled water, one milligram of finely divided 

(A) Silica 

(B) Mud 

(C) Clay 

(D) Organic matter 

by

1 Answer

Answer :

(A) Silica 

by

Related questions

Turbidity of water may be caused due to (A) Suspended clay (B) Suspended silt (C) Finely divided organic material (D) All the above

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On nephelometry turbidity unit (NTU) is equal to the turbidity produced by (a) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according to absorption principle (b) 1 mg SiO2 dissolved in 1 l of distilled water with the test being run according t scattering principle (c) 1 mg Formazin dissolved in 1 l of distilled water with the test being run according to absorption principle (d) 1 mg Formazin dissolved in 1 l o f distilled water with the test being run according to scattering principle.

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Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains (A) Acidity (B) Alkalinity (C) Turbidity (D) Organic matter

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Slow sand filter is used if maximum turbidity of raw water is less than (A) 10 gm/litre (B) 20 gm/litre (C) 30 gm/litre (D) 50 gm/litre

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Rapid gravity filter can only remove turbidity of water upto (A) 15 to 25 gm/litre (B) 25 to 30 gm/litre (C) 30 to 35 cm/litre (D) 35 to 40 gm/litre

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According to IS : 2720 - 1965, the composition of a dispersing solution used in pipette analysis for determining the size of particles, is (A) sodium-hexametaphosphate 33 g, sodium carbonate 7 g and distilled water one litre (B) sodium-hexametaphosphate 7 g, sodium carbonate 33 g and distilled water one litre (C) sodium-hexametaphosphate 23 g, sodium carbonate 17 g and distilled water one litre (D) None of these

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