Hydraulics and Fluid Mechanics in ME A body floating in a liquid is said to be in neutral equilibrium, if its metacentre Lies below its centre of gravity Lies above its centre of gravity Lies between the centre of buoyancy and centre of gravity Coincides with its centre of gravity Lies below its centre of gravity Lies above its centre of gravity Lies between the centre of buoyancy and centre of gravity Coincides with its centre of gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME 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 100 kg 1 kg 10 kg 1000 kg 100 kg 1 kg 10 kg 1000 kg ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.10 cm 0.40 cm 0.05 cm 0.20 cm 0.10 cm 0.40 cm 0.05 cm 0.20 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel. 0.34 times 0.67 times 0.95 times 0.81 times 0.34 times 0.67 times 0.95 times 0.81 times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is 0.848 0.884 0.488 0.392 0.848 0.884 0.488 0.392 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The speed ratio in case of Francis turbine varies from 0.15 to 0.3 1 to 1.5 0.6 to 0.9 0.4 to 0.5 0.15 to 0.3 1 to 1.5 0.6 to 0.9 0.4 to 0.5 ANSWER DOWNLOAD EXAMIANS APP
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