A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the power consumed now will be _____________ hp?

Related Mcqs:

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will _____________ the gas discharge pressure?

A. Increase B. Decrease C. Not change D. Exponentially decrease...

Applicability of Bernoulli’s equation is limited to a/an _____________ fluid, that does not exchange shaft work with the surroundings?

A. Incompressible B. Non-viscous C. Both A. and B. D. Neither A. nor B....

What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate ?

A. 0.5 B. 1 C. 1.5 D. 2...

Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is _____________ mm?

A. 4 C. > 12.5 D. < 10...

The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ____________ fluid?

A. Newtonian B. Pseudo-plastic C. Dilatent D. Bingham plastic...