Hydraulics and Fluid Mechanics in ME If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is V1² / (V1² - V2²) V1 / (V1 - V2) (V1 - V2) / V1 (V1² - V2²) / V1² V1² / (V1² - V2²) V1 / (V1 - V2) (V1 - V2) / V1 (V1² - V2²) / V1² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centre of pressure acts __________ the centre of gravity of immersed surface. None of these Below Above At None of these Below Above At ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The property of a fluid which enables it to resist tensile stress is known as compressibility cohesion adhesion surface tension compressibility cohesion adhesion surface tension ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by H = Hg + hf H = Hg - hf H = Hg × hf H = Hg/hf H = Hg + hf H = Hg - hf H = Hg × hf H = Hg/hf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film) μπ²NR/60t μπ²NR³/60t μπ²NR⁴/60t μπ²NR²/60t μπ²NR/60t μπ²NR³/60t μπ²NR⁴/60t μπ²NR²/60t ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge over a triangular notch is Inversely proportional to H3/2 Directly proportional to H5/2 Directly proportional to H3/2 Inversely proportional to H5/2 Inversely proportional to H3/2 Directly proportional to H5/2 Directly proportional to H3/2 Inversely proportional to H5/2 ANSWER DOWNLOAD EXAMIANS APP
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