Hydraulics and Fluid Mechanics in ME A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is 0.87 0.46 0.64 0.78 0.87 0.46 0.64 0.78 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water 52 cm 51 cm 50 cm 52.2 cm 52 cm 51 cm 50 cm 52.2 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If the depth of water in an open channel is less than the critical depth, the flow is called Torrential flow Tranquil flow Turbulent flow Critical flow Torrential flow Tranquil flow Turbulent flow Critical flow 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)1/2 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 d = (D⁵/8fl)1/3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The center of gravity of the volume of the liquid displaced by an immersed body is called center of pressure center of buoyancy center of gravity metacentre center of pressure center of buoyancy center of gravity metacentre ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Roynolds number is less than 4000 between 2000 and 4000 more than 4000 less than 2000 less than 4000 between 2000 and 4000 more than 4000 less than 2000 ANSWER DOWNLOAD EXAMIANS APP
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