11. The head loss in turbulent flow in a pipe varies
12. A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is
13. The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.
14. The __________ is measured by a piezometric opening.
15. Multistage compressors are used in industry, because they
16. Vane anemometer
17. If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V = fluid velocity f = friction factor).
18. Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around
19. A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double
20. Volute type of casing is provided in a centrifugal pump to
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