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Civil Engineering - GATE Exam Questions

Exercise : GATE Exam Questions - Section 6
26.
A saturated clay stratum draining both at the top and bottom undergoes 50 percent consolidation in 16 years under an applied load. If an additional drainage layer were present at the middle of the clay stratum, 50 percent consolidation would occur in
2 years
4 years
8 years
16 years
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Water flows at a rate of 10 m3/s in a rectangular channel 3 m wide. The critical depth of flow is
1.13 m
2 m
1.45 m
1.04 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Coagulation-flocculation with alum is performed :
immediately before chlorination
immediately after chlorination
after rapid sand filtration
before rapid sand filtration
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Blue baby disease (methaemoglobinemia) in children is caused by the presence of excess
Chorides
Nitrates
Fluoride
Lead
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Breakpoint chlorination of water involves addition of chlorine in an amount sufficient to:
react with any ammonia and readily oxidisable organic matter
kill Giardia cysts
react with inorganic matter
reduce bacterial growth in filters
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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