Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the _______________ decreases?

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In a/an _____________, the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure?

A. Rotameter B. Pitot tube C. Venturimeter D. Flow nozzle...

Pick out the wrong statement?

A. A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity B. Newton’s law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution C. Laminar flow of viscous liquids is involved in the lubrication of various types of bearings D. Rise … Pick out the wrong statement?Read More...

Which of the following is used for very accurate measurement of flow of gas at low velocity ?

A. Pitot tube B. Rotameter C. Segmental orificemeter D. Hot wire anemometer...

Glass pipes can be joined by__________________?

A. Flanges B. Welding C. Soldering D. Bell and spigot joint...

An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonian fluid beyond yield stress. Which of the following is an ideal plastic ?

A. Sewage sludge B. Rubber latex C. Blood D. Sugar solution...