Residential Construction Academy: House Wiring (MindTap Course List)
Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN: 9781337402415
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Chapter 9, Problem 12RQ

A wall-mounted luminaire (fixture) weighing not more than_________ pounds is permitted to be supported on a device box provided the luminaire or its supporting yoke is secured to the box with no fewer than two 6-32 or Larger screws. Name the N E C Θ section that covers this requirement. (Objective 9-5)

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1. A 150 X 90 X 12 mm angular section is welded to a gusset plate shown. Area of angular section is 2376 sq.mm. Fu = 550 MPa Allowable shear Fv=0.30FU Fy = 250 MPa Allowable tensile stress Ft = 0.60FY a. Determine the force P b. Determine the total length of weld using 12mm fillet weld c. Determine the value of a d. Determine the value of b
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