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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 8
31.
The velocity of flow is same at all points in the cross-section of a channel.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.
expands
does not change
contracts
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Select the wrong statement
An equivalent pipe is treated as an ordinary pipe for all calculations
The length of an equivalent pipe is equal to that of a compound pipe
The discharge through an equivalent pipe is equal to that of a compound pipe
The diameter of an equivalent pipe is equal to that of a compound pipe
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
0.34 times
0.67 times
0.81 times
0.95 times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be
double
four times
eight times
sixteen times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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