Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in2 and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque(ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM 8 in.Nozzle exitarea = 0.04 in.2Q= 16 gal/min

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Answered: Water enters a rotating lawn sprinkler…

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in² and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque
(ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM