Location of vena-contracta in an orificemeter does not depend upon the________________?

A. Centroid of the displaced volume of fluid
B. Centre of gravity of a submerged body
C. Centroid of the volume of any floating body
D. None of these

A. Unsteady through unchanged cross-section
B. Steady through changing cross-section
C. Steady and the cross-section is unchanged
D. Unsteady and the cross-section is changed

A. pv = constant
B. pvr= constant
C. pvr = constant, and process is reversible
D. None of these

A. Fluid flow rate & friction loss
B. Length & friction factor
C. Diameter & friction factor
D. Length & diameter

A. 20 m/sec
B. 10 m/sec
C. 5 √2 m/sec
D. 5 m/sec

A. Pressure drop increases linearly
B. Pressure drop is almost constant
C. Area through which fluid flows does not vary
D. None of these