Hydraulics and Fluid Mechanics in ME If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will float tend to move downward and it may finally sink None of these rise until its weight equals the buoyant force float tend to move downward and it may finally sink None of these rise until its weight equals the buoyant force ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A hydraulic coupling belongs to the category of Power developing machines Energy generating machines Energy transfer machines Power absorbing machines Power developing machines Energy generating machines Energy transfer machines Power absorbing machines ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In an immersed body, centre of pressure is Above the centre of gravity At the centre of gravity Below be centre of gravity Could be above or below e.g. depending on density of body and liquid Above the centre of gravity At the centre of gravity Below be centre of gravity Could be above or below e.g. depending on density of body and liquid 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) × H3/2 (2/3) Cd × b × √(2g) × H2 (2/3) Cd × b × √(2gH) (2/3) Cd × b × √(2g) × H (2/3) Cd × b × √(2g) × H3/2 (2/3) Cd × b × √(2g) × H2 (2/3) Cd × b × √(2gH) (2/3) Cd × b × √(2g) × H ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity, Three-fourth Double One-fourth One-half Three-fourth Double One-fourth One-half ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is 0.5 m3/s 0.25 m3/s 1.5 m3/s 2.5 m3/s 0.5 m3/s 0.25 m3/s 1.5 m3/s 2.5 m3/s ANSWER DOWNLOAD EXAMIANS APP
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