Hydraulics and Fluid Mechanics in ME The speed of a turbine runner is Directly proportional to H3/2 Inversely proportional to H3/2 Directly proportional to H1/2 Inversely proportional to H1/2 Directly proportional to H3/2 Inversely proportional to H3/2 Directly proportional to H1/2 Inversely proportional to H1/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The purpose of a surge tank is To control the pressure variations due to rapid changes in the pipe line flow To eliminate water hammer possibilities To regulate flow of water to turbines by providing necessary retarding head of water All of these To control the pressure variations due to rapid changes in the pipe line flow To eliminate water hammer possibilities To regulate flow of water to turbines by providing necessary retarding head of water All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice) Q = (Cd × a)/√(2gh) Q = (2/3). Cd × a × h Q = Cd × a × 2gh Q = (3Cd × a)/√(2h) Q = (Cd × a)/√(2gh) Q = (2/3). Cd × a × h Q = Cd × a × 2gh Q = (3Cd × a)/√(2h) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Viscosity of water in comparison to mercury is Higher/lower depending on temperature Higher Lower Same Higher/lower depending on temperature Higher Lower Same ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Two dimensional flows occurs when The magnitude and direction of the velocity do not change from point to point in the fluid The direction and magnitude of the velocity at all points are identical The velocity of successive fluid particles, at any point, is the same at successive periods of time The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane The magnitude and direction of the velocity do not change from point to point in the fluid The direction and magnitude of the velocity at all points are identical The velocity of successive fluid particles, at any point, is the same at successive periods of time The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.? Kaplan turbine Pelton wheel None of these Francis turbine Kaplan turbine Pelton wheel None of these Francis turbine ANSWER DOWNLOAD EXAMIANS APP
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