Hydraulics and Fluid Mechanics in ME When the Mach number is more than 6, the flow is called Sonic flow Hyper-sonic flow Sub-sonic flow Super-sonic flow Sonic flow Hyper-sonic flow Sub-sonic flow Super-sonic flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An ideal flow of any fluid must fulfill the following Newton’s law of viscosity Continuity equation Pascal’ law Newton’s law of motion Newton’s law of viscosity Continuity equation Pascal’ law Newton’s law of motion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The cavitation in a hydraulic machine Reduces the discharge of a turbine Causes noise and vibration of various parts All of these Causes sudden drop in power output and efficiency Reduces the discharge of a turbine Causes noise and vibration of various parts All of these Causes sudden drop in power output and efficiency ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel. 0.95 times 0.81 times 0.34 times 0.67 times 0.95 times 0.81 times 0.34 times 0.67 times ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The highest efficiency is obtained with a channel of __________ section. Rectangular Circular Square Trapezoidal Rectangular Circular Square Trapezoidal ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance) Cc × Cr Cc × Cv Cv × Cr Cc/Cr Cc × Cr Cc × Cv Cv × Cr Cc/Cr ANSWER DOWNLOAD EXAMIANS APP