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 Q ηo) / Hm (w Hm Q) / ηo (w Q) / (Hm × ηo) (w Hm) / (Q × ηo) (w Q ηo) / Hm (w Hm Q) / ηo ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure of air __________ with the increase of height from the surface of the earth. Does not change Increases None of these Decreases Does not change Increases None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is 200 kg/m3 600 kg/m3 400 kg/m3 800 kg/m3 200 kg/m3 600 kg/m3 400 kg/m3 800 kg/m3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies Cube of fan speed Directly as fan speed Square root of fan speed Square of fan speed Cube of fan speed Directly as fan speed Square root of fan speed Square of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Euler’s dimensionless number relates the following viscous force and buoyancy force pressure force and inertial force viscous force and inertial force inertial force and gravity viscous force and buoyancy force pressure force and inertial force viscous force and inertial force inertial force and gravity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Centre of pressure compared to e.g. is above it above or below depending on area of body below it at same point above it above or below depending on area of body below it at same point ANSWER DOWNLOAD EXAMIANS APP
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