IndiaBIX

Civil Engineering - Water Supply Engineering

Exercise : Water Supply Engineering - Section 7
16.
Pick up the correct statement from the following :
Due to boiling, the bacterias present in water can be destroyed
Lime may be used for softening hard water
Excess lime when added to water, raises the pH value of water
the bacterias do not survive in water having pH value exceeding 9.5
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
For the same draw down in two observations wells at distances r1 and r2, the times after start of pumping are t1 and t2 hours respectively. The relation which holds good is
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The valve fitted closely in a recess against an opening in a pipe, is generally
wedge shaped circular disc
spherical disc
parallelopiped disc
conical shaped circular disc.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula
D = 0.22 Q
D = 1.22 Q
D = 2.22 Q
D = 3.22 Q
D = 1.33 Q.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
S1 and S2 are the draw downs in an observation well at times t1 and t2 after pumping. For discharge Q and coefficient of transmissibility T, the relationship, is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers