Hydraulics and Fluid Mechanics in ME A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity One-third Three-fourth One-half Two-third One-third Three-fourth One-half Two-third ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is L/2 L/3 L/4 L L/2 L/3 L/4 L ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of 1 0.8 1.2 0.75 1 0.8 1.2 0.75 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The jet ratio is defined as the ratio of the Velocity of Pelton wheel to the velocity of jet Diameter of Pelton wheel to the diameter of jet Velocity of jet to the velocity of Pelton wheel Diameter of jet to the diameter of Pelton wheel Velocity of Pelton wheel to the velocity of jet Diameter of Pelton wheel to the diameter of jet Velocity of jet to the velocity of Pelton wheel Diameter of jet to the diameter of Pelton wheel ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The shear stress-strain graph for a Newtonian fluid is a Hyperbolic curve Parabolic curve Straight line Elliptical Hyperbolic curve Parabolic curve Straight line Elliptical ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy’s coefficient of friction for pipe, and l = Length of pipe) d = (D⁵/8fl)1/3 d = (D⁵/8fl)1/2 d = (D⁵/8fl)1/5 d = (D⁵/8fl)1/4 d = (D⁵/8fl)1/3 d = (D⁵/8fl)1/2 d = (D⁵/8fl)1/5 d = (D⁵/8fl)1/4 ANSWER DOWNLOAD EXAMIANS APP
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