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Environmental Engineering

Environmental Engineering
As compared to cast iron pipes, steel pipes are

Costlier
Heavier
Less susceptible to corrosion
Stronger

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Environmental Engineering
Most suitable section of sewer in separate sewage system is

Modified egg shaped section
Standard form of egg shaped sewer
Circular section
Rectangular section

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Environmental Engineering
The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is

Cast iron
Reinforced cement concrete
Copper
Steel

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Environmental Engineering
Dissolved oxygen in streams is

Minimum at noon
Maximum at midnight
Maximum at noon
Same throughout the day

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Environmental Engineering
If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is (i) Presumptive coli-form test (ii) Confirmed coli-form test (iii) Completed coli-form test

Both (i) and (iii)
Only (i)
Both (i) and (ii)
All (i), (ii) and (iii)

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Environmental Engineering
The water carriage system of collection of waste product

Creates hygienic problem
All of these
Is cheaper in initial cost than dry conservancy system
Requires treatment before disposal

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MORE MCQ ON Environmental Engineering

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