Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN: 9781337402415
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Chapter 7, Problem 13RQ
Describe the support requirements for service entrance cable. (Objective 7-3)
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The farming plan of steel structure has 30 ft long simply supported beams spaced at 8 ft apart. The beams carry dead loads (D) and live loads (L). The selected beam size is W 18x50. 1) Based on 0.3Fy allowable stress limit due to dead loads only (D), what will be the maximum D load in psf that can be applied to the beams? Ignore beam weight. 2) Using the D load obtained from Part 1 and based on 0.6Fy allowable stress limit due to combined dead loads and live loads, what will be the maximum live load L in psf that can be applied to the beams? 3) If the maximum mid span deflection due to live loads (L) is L/360 ( or 1.0 in in this case), what will be the maximum L load in psf that can be applied to the beams?
From two inaccessible but intervisible points A and B, the angles to two triangulation stations C and D were observed as follows: Line AB = 500 m long.
Angle CAB = 79 deg 30°
Angle DAB = 28 deg 30°
Angle DBC = 31 deg 30°
Angle DBA = 84 deg 30°
Find the distance BC
Find the distance BD
Find the distance CD
From two inaccessible but intervisible points A and B, the angles to two triangulation stations C and D were observed as follows:
Line AB is 500 m long.
Angle CAB = 79 deg 30°
Angle DAB = 28 deg 30°
Angle DBC = 31 deg 30°
Angle DBA = 84 deg 30°
1. Find the distance BC
2. Find the distance BD
3. Find the distance CD
Chapter 7 Solutions
Residential Construction Academy: House Wiring (MindTap Course List)
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