Mechanical Engineering - Hydraulics and Fluid Mechanics

46.
A notch is used to measure __________ of liquids.
pressure
discharge
velocity
volume
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
A flow is called sonic, if the Mach number is unity.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
An error of 1% in measuring head over the crest of the notch (H) will produce an error of __________ in discharge over a triangular notch,
1%
1.5%
2%
2.5%
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
A flow through a long pipe at decreasing rate is called __________ uniform flow.
steady
unsteady
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
The surface tension of mercury at normal temperature is __________ that of water.
same as
lower than
higher than
Answer: Option
Explanation:
No answer description is available. Let's discuss.