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E P Cable 3 m A B D -2.25 m--2.25 m--2.25 m- (a) Cable 3 m B Shear release --2.25 m--2.25 m- (b)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter37: Air Distribution And Balance

Section: Chapter Questions

Problem 22RQ: The equivalent feet of pressure drop for a group 3-G branch-line takeoff is A. 30 ft. B. 20 ft C. 10...

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Question

A beam ABCD with a vertical arm CE is
supported as a simple beam at A and D (see figure
part a). A cable passes over a small pulley that is
attached to the arm at E. One end of the cable is
attached to the beam at point B.

(a) What is the force P in the cable if the bending
moment in the beam just to the left of point C

is equal numerically to 7.5 kN?m? Note: Dis-
regard the widths of the beam and vertical arm

and use centerline dimensions when making
calculations.
(b) Repeat part (a) if a roller support is added at C
and a shear release is inserted just left of C (see
figure part b).

E
P
Cable
3 m
A
B
D
-2.25 m--2.25 m--2.25 m-
(a)
Cable
3 m
B
Shear release
--2.25 m--2.25 m-
(b)

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