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 Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q ηo) / Hm (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q ηo) / Hm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Reynolds number is More than 4000 Between 2000 and 4000 Less than 4000 Less than 2000 More than 4000 Between 2000 and 4000 Less than 4000 Less than 2000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The bulk modulus of elasticity with increase in pressure remains constant increases decreases increases first upto certain limit and then decreases remains constant increases decreases increases first upto certain limit and then decreases ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The working of which of the following hydraulic units is based on Pascal's law? Hydraulic coupling Air lift pump Hydraulic press Jet pump Hydraulic coupling Air lift pump Hydraulic press Jet pump ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The wake is a region of high pressure intensity always occurs before a separation point None of these always occurs after a separation point is a region of high pressure intensity always occurs before a separation point None of these always occurs after a separation point 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
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