Hydraulics and Fluid Mechanics in ME According to fan laws, for fans having constant wheel diameter, the pressure varies Directly as fan speed Square root of fan speed Cube of fan speed Square of fan speed Directly as fan speed Square root of fan speed Cube of fan speed Square of fan speed ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Alcohol is used in manometers because It can provide longer column due to low density It has low vapour pressure It is clearly visible It has low surface tension It can provide longer column due to low density It has low vapour pressure It is clearly visible It has low surface tension ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For pipes, laminar flow occurs when Roynolds number is less than 2000 less than 4000 more than 4000 between 2000 and 4000 less than 2000 less than 4000 more than 4000 between 2000 and 4000 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The speed ratio in case of Francis turbine varies from 0.4 to 0.5 1 to 1.5 0.6 to 0.9 0.15 to 0.3 0.4 to 0.5 1 to 1.5 0.6 to 0.9 0.15 to 0.3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If the coefficient of discharge is 0.6, then the discharge over a right angled notch is 0.417 H5/2 4.171 H5/2 7.141 H5/2 1.417 H5/2 0.417 H5/2 4.171 H5/2 7.141 H5/2 1.417 H5/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The velocity at which the flow changes from laminar flow to turbulent flow is called Sub-sonic velocity Super-sonic velocity Critical velocity Velocity of approach Sub-sonic velocity Super-sonic velocity Critical velocity Velocity of approach ANSWER DOWNLOAD EXAMIANS APP
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