The most economical flow control valve for use with large diameter pipes is a__________________?

Related Mcqs:

The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is_____________________?

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

In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of___________________?

A. Relative roughness B. Absolute roughness C. Friction co-efficient for flows at equal Reynold number D. All A., B. & C....

If more than two branches of pipes are to be connected at the same point, then use a/an_________________?

A. Elbow B. Union C. Tee D. None of these...

The fluid property which matters for falling rain drops to acquire spherical shape is its__________________?

A. Pressure B. Height of descend C. Viscosity D. Surface tension...

Which of the following may be termed as a variable orifice flow-meter ?

A. Rotameter B. Pitot tube C. V-notch D. All A., B. and C....