Hydraulics and Fluid Mechanics in ME Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is slightly more slightly less nearly half equal slightly more slightly less nearly half equal ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Braking jet in an impulse turbine is used None of these To break the jet of water To change the direction of runner To bring the runner to rest in a short time None of these To break the jet of water To change the direction of runner To bring the runner to rest in a short time ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice. Equal to One-fourth One-half One-third Equal to One-fourth One-half One-third ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The length of a liquid stream while flowing over a weir __________ at the ends of the sill. Does not change Contracts Expands None of these Does not change Contracts Expands None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The speed ratio in case of Francis turbine varies from 0.15 to 0.3 0.4 to 0.5 0.6 to 0.9 1 to 1.5 0.15 to 0.3 0.4 to 0.5 0.6 to 0.9 1 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Specific weight of water in S.I. units is equal to 9.81 xlO3 N/m3 10000 N/m3 9.81 xlO6 N/m3 1000 N/m3 9.81 xlO3 N/m3 10000 N/m3 9.81 xlO6 N/m3 1000 N/m3 ANSWER DOWNLOAD EXAMIANS APP
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