Hydraulics and Fluid Mechanics in ME The specific gravity of an oil whose specific weight is 7.85 kN/m3, is 0.8 1 1.6 1.2 0.8 1 1.6 1.2 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 R7/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) 14π R7/2/15Cd × a √(2g) 14π R5/2/15Cd × a √(2g) 14π R1/2/15Cd × a √(2g) 14π R3/2/15Cd × a √(2g) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.10 cm 0.05 cm 0.40 cm 0.20 cm 0.10 cm 0.05 cm 0.40 cm 0.20 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called Bernoulli’s theorem Principle of flotation Archimedes’s principle Pascal’s law Bernoulli’s theorem Principle of flotation Archimedes’s principle Pascal’s law ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The flow in a pipe or channel is said to be uniform when The liquid particles at different sections have different velocities The quantity of liquid flowing per second is constant The liquid particles at all sections have the same velocities Each liquid particle has a definite path The liquid particles at different sections have different velocities The quantity of liquid flowing per second is constant The liquid particles at all sections have the same velocities Each liquid particle has a definite path ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A nozzle is generally made of Divergent shape Cylindrical shape Convergent-divergent shape Convergent shape Divergent shape Cylindrical shape Convergent-divergent shape Convergent shape ANSWER DOWNLOAD EXAMIANS APP
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