Hydraulics and Fluid Mechanics in ME The shear stress-strain graph for a Newtonian fluid is a Hyperbolic curve Parabolic curve Straight line Elliptical Hyperbolic curve Parabolic curve Straight line Elliptical ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure at the summit of a syphon is less than atmospheric equal to atmospheric more than atmospheric None of these less than atmospheric equal to atmospheric more than atmospheric None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In reaction turbine, draft tube is used To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section For safety of turbine To increase flow rate To transport water downstream without eddies To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section For safety of turbine To increase flow rate To transport water downstream without eddies ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump) (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Hm Q) / ηo ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For small discharge at high pressure, following pump is preferred Mixed flow Centrifugal Axial flow Reciprocating Mixed flow Centrifugal Axial flow Reciprocating ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow) 0.577 D 0.223 D 0.707 D 0.423 D 0.577 D 0.223 D 0.707 D 0.423 D ANSWER DOWNLOAD EXAMIANS APP
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