Hydraulics and Fluid Mechanics in ME The overall efficiency of a reaction turbine is the ratio of Power produced by the turbine to the energy actually supplied by the turbine Work-done on the wheel to the energy (or head of water) actually supplied to the turbine Actual work available at the turbine to the energy imparted to the wheel None of these Power produced by the turbine to the energy actually supplied by the turbine Work-done on the wheel to the energy (or head of water) actually supplied to the turbine Actual work available at the turbine to the energy imparted to the wheel None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The flow rate in gear pump Increases with increase in pressure Unpredictable More or less remains constant with increase in pressure Decreases with increase in pressure Increases with increase in pressure Unpredictable More or less remains constant with increase in pressure Decreases with increase in pressure ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Axial flow pump is started with its delivery valve Kept fully open Kept fully closed Irrespective of any position Kept 50% open Kept fully open Kept fully closed Irrespective of any position Kept 50% open ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice) Q = (3Cd × a)/√(2h) Q = (Cd × a)/√(2gh) Q = Cd × a × 2gh Q = (2/3). Cd × a × h Q = (3Cd × a)/√(2h) Q = (Cd × a)/√(2gh) Q = Cd × a × 2gh Q = (2/3). Cd × a × h ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a static fluid Linear deformation is small Resistance to shear stress is small Fluid pressure is zero Only normal stresses can exist Linear deformation is small Resistance to shear stress is small Fluid pressure is zero Only normal stresses can exist ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge in an open channel corresponding to critical depth is Maximum Minimum None of these Zero Maximum Minimum None of these Zero ANSWER DOWNLOAD EXAMIANS APP
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