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 All of these BHP required by the pump Head of the liquid pumped NPSH required All of these BHP required by the pump Head of the liquid pumped ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The most economical flow control valve for use with large diameter pipes is a None of these Butterfly valve Needle valve Globe valve None of these Butterfly valve Needle valve Globe valve ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid. Newtonion Dilatant Bingham plastic Pseudoplastic Newtonion Dilatant Bingham plastic Pseudoplastic ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary. II, III, V II, IV, V I, II, V I, II, III II, III, V II, IV, V I, II, V I, II, III ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. 0.01 0.1 0.001 1 0.01 0.1 0.001 1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the Pipe length All of these Fluid velocity in the pipe Time taken to close the valve Pipe length All of these Fluid velocity in the pipe Time taken to close the valve ANSWER DOWNLOAD EXAMIANS APP
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