Hydraulics and Fluid Mechanics in ME The unit of surface tension is N/m3 N/m N-m N/m2 N/m3 N/m N-m N/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump) (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q) / (Hm × ηo) (w Q ηo) / Hm (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q) / (Hm × ηo) (w Q ηo) / Hm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s) w × Q (H - hf) w × Q (H + hf) w × Q × H w × Q × hf w × Q (H - hf) w × Q (H + hf) w × Q × H w × Q × hf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The Bernoulli's equation is based on the assumption that The velocity of flow is uniform across any cross-section of the pipe All of these There is no loss of energy of the liquid flowing No force except gravity acts on the fluid The velocity of flow is uniform across any cross-section of the pipe All of these There is no loss of energy of the liquid flowing No force except gravity acts on the fluid ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced. More than Less than None of these Equal to More than Less than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe) 0.423 R 0.223 R 0.577 R 0.707 R 0.423 R 0.223 R 0.577 R 0.707 R ANSWER DOWNLOAD EXAMIANS APP
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