Hydraulics and Fluid Mechanics in ME According to fan laws, for the fans having constant wheel diameters, the power demand varies Directly as fan speed Square of fan speed Square root of fan speed Cube of fan speed Directly as fan speed Square of fan speed Square root of fan speed Cube of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A channel is said to be of most economical cross-section, if It gives maximum discharge for a given cross-sectional area and bed slope It involves lesser excavation for the designed amount of discharge All of these It has minimum wetted perimeter It gives maximum discharge for a given cross-sectional area and bed slope It involves lesser excavation for the designed amount of discharge All of these It has minimum wetted perimeter ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When an ideal fluid flows past a sphere total drag is zero lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point highest intensity of pressure occurs around the circumference at right angles to flow total drag is zero lowest pressure intensity occurs at front stagnation point lowest pressure intensity occurs at rear stagnation point highest intensity of pressure occurs around the circumference at right angles to flow 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. None of these Neutral Stable Unstable None of these Neutral Stable Unstable ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is Medium speed with radial flow at outlet Slow speed with radial flow at outlet High speed with mixed flow at outlet High speed with radial flow at outlet Medium speed with radial flow at outlet Slow speed with radial flow at outlet High speed with mixed flow at outlet High speed with radial flow at outlet ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For manometer, a better liquid combination is one having surface tension is no criterion lower surface tension high density and viscosity higher surface tension surface tension is no criterion lower surface tension high density and viscosity higher surface tension ANSWER DOWNLOAD EXAMIANS APP
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