Hydraulics and Fluid Mechanics in ME A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is 0.4 0.6 0.83 0.3 0.4 0.6 0.83 0.3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called None of these Archimedes’s principle Pascal’s law D-Alembert’s principle None of these Archimedes’s principle Pascal’s law D-Alembert’s principle ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) 4wd/σ cosα wd/4σ cosα σ cosα/4wd 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd 4σ cosα/wd ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The purpose of a surge tank is To control the pressure variations due to rapid changes in the pipe line flow To eliminate water hammer possibilities To regulate flow of water to turbines by providing necessary retarding head of water All of these To control the pressure variations due to rapid changes in the pipe line flow To eliminate water hammer possibilities To regulate flow of water to turbines by providing necessary retarding head of water All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a reciprocating pump, air vessels are used to Smoothen the flow Reduce acceleration head Increase delivery head Reduce suction head Smoothen the flow Reduce acceleration head Increase delivery head Reduce suction head ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid) 16μvl/wd² 8μvl/wd² 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² 4μvl/wd² 32μvl/wd² ANSWER DOWNLOAD EXAMIANS APP
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