Hydraulics and Fluid Mechanics in ME A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is 20 kN 5kN 15 kN lOkN 20 kN 5kN 15 kN lOkN ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity corresponding to Reynold number of 2800, is called Sub-sonic velocity Lower critical velocity Higher critical velocity Super-sonic velocity Sub-sonic velocity Lower critical velocity Higher critical velocity Super-sonic velocity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Kinematic similarity is said to exist between the model and the prototype, if both of them Have identical velocities Have identical forces Are identical in shape, but differ only in size Are equal in size and shape Have identical velocities Have identical forces Are identical in shape, but differ only in size Are equal in size and shape ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In centrifugal pumps, maximum efficiency is obtained when the blades are Bent backward Straight Bent forward Radial Bent backward Straight Bent forward Radial ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy. Coincides with Lies below None of these Lies above Coincides with Lies below None of these Lies above ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is 0.26 0.46 0.56 0.36 0.26 0.46 0.56 0.36 ANSWER DOWNLOAD EXAMIANS APP
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