Hydraulics and Fluid Mechanics in ME The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by 2V/(vr + v) V/(vr + v) V/(vr - v) 2V/(vr - v) 2V/(vr + v) V/(vr + v) V/(vr - v) 2V/(vr - v) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity at which the laminar flow stops, is known as Velocity of approach Higher critical velocity Lower critical velocity None of these Velocity of approach Higher critical velocity Lower critical velocity None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on a sphere a streamlined body a circular disc of plate held normal to flow a cylinder a sphere a streamlined body a circular disc of plate held normal to flow a cylinder ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed) AC × √(m × i) C × √(m × i) A × √(m × i) mi × √(A × C) AC × √(m × i) C × √(m × i) A × √(m × i) mi × √(A × C) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Ratio of inertia force to surface Jension is known as Weber’s number Reynold’s number Mach number Froude number Weber’s number Reynold’s number Mach number Froude number ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A fluid in equilibrium can't sustain Shear stress Bending stress Tensile stress Compressive stress Shear stress Bending stress Tensile stress Compressive stress ANSWER DOWNLOAD EXAMIANS APP