Hydraulics and Fluid Mechanics in ME A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be 2 m/sec 1.5 m/sec 1 m/sec less than 1 m/sec 2 m/sec 1.5 m/sec 1 m/sec less than 1 m/sec ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ? 0.5 0.515 0.4 0.5 0.5 0.515 0.4 0.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch) (2/3) Cd × b × √(2g) × H2 (2/3) Cd × b × √(2g) × H (2/3) Cd × b × √(2gH) (2/3) Cd × b × √(2g) × H3/2 (2/3) Cd × b × √(2g) × H2 (2/3) Cd × b × √(2g) × H (2/3) Cd × b × √(2gH) (2/3) Cd × b × √(2g) × H3/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following pump is preferred for flood control and irrigation applications? Axial flow pump Centrifugal pump Mixed flow pump Reciprocating pump Axial flow pump Centrifugal pump Mixed flow pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The efficiency of a Pelton wheel working under constant head ________ with the increase in power. Remain same Decreases Increases None of these Remain same Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece) 0.855 a.√(2gH) 1.585 a.√(2gH) 5.85 aH.√(2g) 1.855 aH.√(2g) 0.855 a.√(2gH) 1.585 a.√(2gH) 5.85 aH.√(2g) 1.855 aH.√(2g) ANSWER DOWNLOAD EXAMIANS APP
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