Hydraulics and Fluid Mechanics in ME An ideal flow of any fluid must fulfill the following Pascal’ law Newton’s law of viscosity Continuity equation Newton’s law of motion Pascal’ law Newton’s law of viscosity Continuity equation Newton’s law of motion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following statement is correct as regard to water wheels? They give constant efficiency, even if the discharge is not constant They are suitable even for low water heads All of these They have slow speeds They give constant efficiency, even if the discharge is not constant They are suitable even for low water heads All of these They have slow speeds ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions) (2/3) × Cd (L - 0.1nH) × √(2g) × H3/2 (2/3) × Cd (L - nH) × √(2g) × H² (2/3) × Cd (L - nH) × √(2g) × H5/2 (2/3) × Cd (L - nH) × √(2gh) (2/3) × Cd (L - 0.1nH) × √(2g) × H3/2 (2/3) × Cd (L - nH) × √(2g) × H² (2/3) × Cd (L - nH) × √(2g) × H5/2 (2/3) × Cd (L - nH) × √(2gh) 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 suction pressure should be low The delivery pressure should be high The delivery pressure should be low The suction pressure should be high The suction pressure should be low The delivery pressure should be high The delivery pressure should be low ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Choose the wrong statement. Alcohol is used in manometer, because Its vapour pressure is low It provides longer length for a given pressure difference Its density is less It provides suitable meniscus for the inclined tube Its vapour pressure is low It provides longer length for a given pressure difference Its density is less It provides suitable meniscus for the inclined tube ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is π w ω² r³/4g π w ω² r²/4g π w ω² r⁴/4g π w ω² r²/2g π w ω² r³/4g π w ω² r²/4g π w ω² r⁴/4g π w ω² r²/2g ANSWER DOWNLOAD EXAMIANS APP
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