Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be Greater than the vapour pressure of the liquid Less than barometric pressure Equal to the vapour pressure of the liquid Less than the vapour pressure of the liquid Greater than the vapour pressure of the liquid Less than barometric pressure Equal to the vapour pressure of the liquid Less than the vapour pressure of the liquid ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Pressure gradient in the pipe flow is influenced by the Density & viscosity of the fluid Diameter of pipe Velocity of the fluid All of these Density & viscosity of the fluid Diameter of pipe Velocity of the fluid All of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. 186.2 12.4 1.8 736.4 186.2 12.4 1.8 736.4 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The most economical flow control valve for use with large diameter pipes is a Needle valve None of these Butterfly valve Globe valve Needle valve None of these Butterfly valve Globe valve ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. NPSH required Head of the liquid pumped All of these BHP required by the pump NPSH required Head of the liquid pumped All of these BHP required by the pump ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Transition from laminar flow to turbulent flow is aided by the Pressure gradient and the compressibility of the flowing medium Surface roughness and curvature (i.e.sharp corners) Vibration All of these Pressure gradient and the compressibility of the flowing medium Surface roughness and curvature (i.e.sharp corners) Vibration All of these ANSWER DOWNLOAD EXAMIANS APP
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