Hydraulics and Fluid Mechanics in ME According to fan laws, for the fans having constant wheel diameters, the power demand varies 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 Directly as fan speed Square of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock) 2p/sin (α/2) p/sinα p/2sinα 2p/sinα 2p/sin (α/2) p/sinα p/2sinα 2p/sinα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific weight of water in S.I. units is taken as 9.81 kN/m3 9.81 × 10-6 N/mm3 Any one of these 9.81 × 103 N/m3 9.81 kN/m3 9.81 × 10-6 N/mm3 Any one of these 9.81 × 103 N/m3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A channel is said to be of most economical cross-section, if 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 It gives maximum discharge for a given cross-sectional area and bed slope ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The conditions for the stable equilibrium of a floating body are all the above are correct a righting couple should be formed the center of buoyancy and the center of gravity must lie on the same vertical line the meta-center should lie above the center of gravity all the above are correct a righting couple should be formed the center of buoyancy and the center of gravity must lie on the same vertical line the meta-center should lie above the center of gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is (waV²/g) × sin θ (waV/g) × sin θ (waV/2g) × sin θ (waV²/2g) × sin 2θ (waV²/g) × sin θ (waV/g) × sin θ (waV/2g) × sin θ (waV²/2g) × sin 2θ ANSWER DOWNLOAD EXAMIANS APP
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