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 ηo) / Hm (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Hm Q) / ηo (w Q ηo) / Hm (w Q) / (Hm × ηo) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be less than 1 m/sec 1 m/sec 2 m/sec 1.5 m/sec less than 1 m/sec 1 m/sec 2 m/sec 1.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is 0.392 0.488 0.884 0.848 0.392 0.488 0.884 0.848 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be 10 kN/m2 14 kN/m2 4 kN/m2 12 kN/m2 10 kN/m2 14 kN/m2 4 kN/m2 12 kN/m2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a depressed nappe The pressure above the nappe is negative The pressure above the nappe is atmospheric The pressure below the nappe is atmospheric The pressure below the nappe is negative The pressure above the nappe is negative The pressure above the nappe is atmospheric The pressure below the nappe is atmospheric The pressure below the nappe is negative ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A differential manometer is used to measure Difference of pressures between two points in a pipe Pressure in pipes and channels Pressure in Venturimeter Atmospheric pressure Difference of pressures between two points in a pipe Pressure in pipes and channels Pressure in Venturimeter Atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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