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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Density of water is maximum at

0°C
0°K
4°C
100°C

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

Cube of fan speed
Directly as fan speed
Square root of fan speed
Square of fan speed

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Hydraulics and Fluid Mechanics in ME
One cubic metre of water weighs

1000 liters
500 liters
100 liters
250 liters

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Hydraulics and Fluid Mechanics in ME
A structure used to dam up a stream or river over which the water flows is called

Weir
Dam
Notch
Orifice

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

1.71 Cd × L × H3/2
0.384 Cd × L × H1/2
1.71 Cd × L × H1/2
0.384 Cd × L × H3/2

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Eight times
Sixteen times
Four times
Double

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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