Hydraulics and Fluid Mechanics Questions

• When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.
• The density of a liquid in kg/m3 is numerically equal to its specific gravity.
• Bulk modulus of a fluid is the ratio of
• Froude's number is the ratio of inertia force to
• An orifice is said to be large, if
• A structure used to dam up a stream or river over which the water flows is called
• Select the wrong statement
• When a liquid is flowing through a pipe, the velocity of the liquid is
• The pressure of fluid due to hammer blow is
• Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)
• The flow in a pipe or channel is said to be uniform when
• The depth of centre of pressure lor an immersed surface inclined at an angle θ with the liquid surface lies at a distance equal to __________ the centre of gravity.
• The length of a liquid stream while flowing over a weir __________ at the ends of the sill.
• The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
• A flow through an expanding tube at constant rate is called
• When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.
• The critical depth meter is used to measure
• One cubic metre of water weighs
• The centre of pressure acts __________ the centre of gravity of immersed surface.
• The highest efficiency is obtained with a channel of __________ section.