Mechanical Engineering :: Hydraulics and Fluid Mechanics
- The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
- The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)
- A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is
- The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream
- Select the correct statement
- Select the correct statement
- The discharge in an open channel corresponding to critical depth is
- A channel is said to be of most economical cross-section, if
- When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is
- The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is
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A.
Local atmospheric pressure depends upon elevation of locality only |
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B.
Standard atmospheric pressure is the mean local atmospheric pressure a* sea level |
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C.
Local atmospheric pressure is always below standard atmospheric pressure |
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D.
A barometer reads the difference between local and standard atmospheric pressure |