According to fan laws, for the fans having constant wheel diameters, the power demand varies

In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.

A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

The variation in the volume of a liquid with the variation of pressure is called its

The unit speed of the turbine runner is

When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

The shear stress-strain graph for a Newtonian fluid is a

The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because

Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.

A hydraulic press is a device used

Which of the following turbine is preferred for 0 to 25 m head of water?

A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

The buoyancy depends upon the

Meta-centric height is given as the distance between