1._________ flow means the flow of incompressible fluid with no shear.
2._________ forces act on a particle moving through a stationary fluid.
3._________ forces do not act in case of fluid flow.
4._________ is an example of axial flow impeller.
5._________ is used for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline.
6._________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2.
7._________ pumps are a group of vacuum pumps.
8._________ pumps are axial flow pumps.
9.A 0.5 m high bed made up of a 1 mm dia glass sphere (density 2500 kg/m3 ) is to be fluidised by water (density 1000 kg/m3 ). If at the point of incipient fluidisation, the bed voidage is 40&, the pressure drop across the bed is
10.A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is