Fluid Mechanics mcqs

Which Of The Following Relationship Is Valid For The Equilibrium Position Of The Float In A Rotameter? (Where, Df= Drag Force On The Float Bf = Buoyant Force On The Float Wf = Weight Of The Float)?

Which Of The Following Relationship Is Valid For The Equilibrium Position Of The Float In A Rotameter?

Df + Bf = Wf

Df + Bf + Wf =0

None Of These

Df = Bf + Wf

Which Of The Following Options Will Facilitate The Achievement Of A Very High Head (Say 30 Metres) In Case Of A Centrifugal Pump ?

Which Of The Following Options Will Facilitate The Achievement Of A Very High Head (Say 30 Metres) In Case Of A Centrifugal Pump ?

Mounting Of Two Or More Impellers In Series On A Single Shaft

Increasing The Number Of Vanes In The Impeller

Increasing The Impeller Speed And The Volute Area

Either Of A., Or C.

Working Principle Of Manometer Comprises Of Balancing A Coloumn Of Liquid Against The Pressure To Be Measured. Inclined Tube Manometer Is Especially Used For The Measurement Of ---------- Pressure?

Working Principle Of Manometer Comprises Of Balancing A Coloumn Of Liquid Against The Pressure To Be Measured.

Atmospheric

Absolute

Gage

Small Differential

With Increase In The Ratio Of Orifice Diameter To Pipe Diameter, The Fraction Of The Orifice Pressure Differential That Is Permanently Lost--------?

With Increase In The Ratio Of Orifice Diameter To Pipe Diameter, The Fraction Of The Orifice Pressure Differential That Is Permanently Lost--------?

Decreases

Increases Exponentially

Increases

Remains Unchanged

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