Hydraulics and Fluid Mechanics in ME A flow is called super-sonic if the Velocity of flow is very high Mach number is between 1 and 6 None of these Discharge is difficult to measure Velocity of flow is very high Mach number is between 1 and 6 None of these Discharge is difficult to measure ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be 5 meters of water column 3 meters of water column 2 meters of water column 6 meters of water Column 5 meters of water column 3 meters of water column 2 meters of water column 6 meters of water Column ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel. 0.95 times 0.34 times 0.67 times 0.81 times 0.95 times 0.34 times 0.67 times 0.81 times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to 1/2 × depth 1/2 × breadth 1/2 × sloping side 1/4 × (depth + breadth) 1/2 × depth 1/2 × breadth 1/2 × sloping side 1/4 × (depth + breadth) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe) 0.223 R 0.423 R 0.707 R 0.577 R 0.223 R 0.423 R 0.707 R 0.577 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following has highest coefficient of discharge ? CipoUetti weir Borda’s mouthpiece running full sharp edged orifice venturimeter CipoUetti weir Borda’s mouthpiece running full sharp edged orifice venturimeter ANSWER DOWNLOAD EXAMIANS APP
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