Hydraulics and Fluid Mechanics in ME Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of Lower speed of operation Lower discharge High initial and maintenance cost Necessity of air vessel Lower speed of operation Lower discharge High initial and maintenance cost Necessity of air vessel ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.) L.A.N 2 L.A.N (L.A.N)/60 (2 L.A.N)/60 L.A.N 2 L.A.N (L.A.N)/60 (2 L.A.N)/60 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For laminar flow in circular pipes, the Darcy’s friction factor f is equal to None of these 16/Re 32/ Re 64/ Re None of these 16/Re 32/ Re 64/ Re ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece) 0.855 a. √2gH √2gH 0.5 a. √2gH 0.707 a. √2gH 0.855 a. √2gH √2gH 0.5 a. √2gH 0.707 a. √2gH ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be 100m 1 m 10m None of these 100m 1 m 10m None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is π w ω² r³/4g π w ω² r⁴/4g π w ω² r²/2g π w ω² r²/4g π w ω² r³/4g π w ω² r⁴/4g π w ω² r²/2g π w ω² r²/4g ANSWER DOWNLOAD EXAMIANS APP
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