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Civil Engineering - Hydraulics

Exercise : Hydraulics - Section 4
26.
The velocity of flow at the critical depth (hc) is called critical velocity (Vc) which is equal to
Vc = g x hc
g x hc
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In a short cylindercial external mouthpiece, the venacontracta occurs at a distance from the outlet of orifice equal to
diameter of the orifice
one-fourth the diameter of the orifice
one-third the diameter of the orifice
two-third the diameter of the orifice
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
If the pressure at the inlet of a pipe is 90 kg/cm2 and pressure drop over the pipe line is 10 kg/cm2, the efficiency of transmission, is
66.6%
77.7%
55.5%
88.8%.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Pick up the incorrect statement from to following regarding triangular notch :
For measuring low discharge, it gives more accurate result
Only one reading (i.e. H) is required for computation of discharge
Ventilation is necessary
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The flow in a channel is said to be non-uniform, if
free water surface of an open channel is not parallel to the bed of channel
head needed to overcome frictional reistance is less than the drop in elevation of channel bed
head needed to overcome frictional resistance is more than the drop in elevation of channel bed
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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