Fluid Mechanics Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the All of these Time taken to close the valve Fluid velocity in the pipe Pipe length All of these Time taken to close the valve Fluid velocity in the pipe Pipe length ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For an incompressible fluid, the bulk modulus of elasticity is ∞ N/m² 0 N/m 5 kg/m³ 1 N ∞ N/m² 0 N/m 5 kg/m³ 1 N ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The unit of bulk modulus of elasticity for a liquid in S.I. unit is N/m² N/m N N/m³ N/m² N/m N N/m³ ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Prandtl mixing length is None of these Applicable to laminar flow problems A universal constant Zero at the pipe wall None of these Applicable to laminar flow problems A universal constant Zero at the pipe wall ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, σ = surface tension of mercury) L/σ D Σ 1/d L/σ D Σ 1/d ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s). 0.24 24 0.44 24000 0.24 24 0.44 24000 ANSWER DOWNLOAD EXAMIANS APP
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