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 0.4 0.515 0.5 0.5 0.4 0.515 0.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order to avoid cavitation in centrifugal pumps The suction pressure should be high The delivery pressure should be high The suction pressure should be low The delivery pressure should be low The suction pressure should be high The delivery pressure should be high The suction pressure should be low The delivery pressure should be low ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium. Stable Neutral None of these Unstable Stable Neutral None of these Unstable ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The atmospheric pressure with rise in altitude decreases first slowly and then steeply linearly unpredictable first steeply and then gradually first slowly and then steeply linearly unpredictable first steeply and then gradually ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach) (2/3) Cd × L.√2g [H12 - Ha2] (2/3) Cd × L.√2g [H1 - Ha] (2/3) Cd × L. √2g [H15/2 - Ha5/2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] (2/3) Cd × L.√2g [H12 - Ha2] (2/3) Cd × L.√2g [H1 - Ha] (2/3) Cd × L. √2g [H15/2 - Ha5/2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is 5.2 sec 4.1 sec 10.4 sec 14.1 sec 5.2 sec 4.1 sec 10.4 sec 14.1 sec ANSWER DOWNLOAD EXAMIANS APP
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