Exercise: Hydraulics

Questions for: Hydraulics

Barometres are used to measure
A:
pressure in water channels, pipes etc.
B:
difference in pressure at two points
C:
atmospheric pressure
D:
very low pressure
Answer: C
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When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe
A:
increases the discharge
B:
decreases the discharge
C:
does not effect the discharge
D:
none of these.
Answer: A
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In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be
A:
2 mm
B:
4 mm
C:
6 mm
D:
8 mm
Answer: C
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Due to decrease of diameter of the droplet, inside pressure intensity
A:
increases
B:
decreases
C:
remains unaffected
D:
None of these.
Answer: A
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The velocity of the fluid particle at the centre of the pipe section, is
A:
minimum
B:
maximum
C:
equal throughout
D:
none of these.
Answer: B
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