Hydraulics and Fluid Mechanics in ME Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of High initial and maintenance cost Necessity of air vessel Lower speed of operation Lower discharge High initial and maintenance cost Necessity of air vessel Lower speed of operation Lower discharge ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies Cube of fan speed Square of fan speed Directly as fan speed Square root of fan speed Cube of fan speed Square of fan speed Directly as fan speed Square root of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary Directly as the air or gas density Inversely as density Inversely as square root of density As square of density Directly as the air or gas density Inversely as density Inversely as square root of density As square of density ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Dynamic viscosity of most of the gases with rise in temperature increases remains unaffected decreases unpredictable increases remains unaffected decreases unpredictable ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is 14π R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 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.) (2 L.A.N)/60 (L.A.N)/60 L.A.N 2 L.A.N (2 L.A.N)/60 (L.A.N)/60 L.A.N 2 L.A.N ANSWER DOWNLOAD EXAMIANS APP
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