Hydraulics and Fluid Mechanics in ME The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe) (H + hf )/H H/(H - hf ) H/(H + hf ) (H - hf )/H (H + hf )/H H/(H - hf ) H/(H + hf ) (H - hf )/H ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Specific weight of water in S.I. units is equal to 10000 N/m3 9.81 xlO3 N/m3 9.81 xlO6 N/m3 1000 N/m3 10000 N/m3 9.81 xlO3 N/m3 9.81 xlO6 N/m3 1000 N/m3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the Mach number is between ___ the flow is called super-sonic flow. 2.5 and 4 1 and 6 4 and 6 1 and 2.5 2.5 and 4 1 and 6 4 and 6 1 and 2.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is v₁²/2g 0.375 v₂²/2g 0.5 v₁²/2g v₂²/2g v₁²/2g 0.375 v₂²/2g 0.5 v₁²/2g v₂²/2g ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid) 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The factional resistance of a pipe varies approximately with __________ of the liquid. Velocity Pressure Square of velocity Cube of velocity Velocity Pressure Square of velocity Cube of velocity ANSWER DOWNLOAD EXAMIANS APP
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