Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN: 9781285165738
Author: Alan Jefferis, David A. Madsen, David P. Madsen
Publisher: Cengage Learning
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Chapter 28, Problem 28.38Q
To determine
The reason for using a washer when a bolt is placed.
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To determine the elevation of a point such as B in Fig. 24 in the text, the following procedure was used: With the transit set up over a point such as A whose elevation is 128.3 ft, the height of the transverse axis above A was 4.84 ft and the vertical angle b between the horizontal line CD through the transverse axis and the line of sight to the point B was +12º 42'. Then a point such as E was marked on the ground on the line between A and B and at a horizontal distance from A equal to 50.00 ft. Finally, with the transit set up over the point E, the difference in elevation between the point A and the transverse axis F of the transit at E was found to be 3.47 ft, and the vertical angle d between the horizontal line through F and the line of sight to the point B was +18º 07'. The elevation of the point B is
Which of the following statements is not true when considering precision in surveying?A. Measuring angles to the nearest minute and distances to the nearest hundredth of a foot is usually sufficient for locating theroute of a highway.B. A very accurate survey provides a very high degree of precision.C. Precision is defined as the degree of correctness applied in instruments.D. The most precise instruments can produce inaccurate results i f subjected to mechanical or human error.
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Chapter 28 Solutions
Architectural Drafting and Design (MindTap Course List)
Ch. 28 - Prob. 28.1QCh. 28 - Prob. 28.2QCh. 28 - Prob. 28.3QCh. 28 - Prob. 28.4QCh. 28 - Prob. 28.5QCh. 28 - Prob. 28.6QCh. 28 - Prob. 28.7QCh. 28 - Prob. 28.8QCh. 28 - Prob. 28.9QCh. 28 - Prob. 28.10Q
Ch. 28 - Prob. 28.11QCh. 28 - Prob. 28.12QCh. 28 - Prob. 28.13QCh. 28 - Prob. 28.14QCh. 28 - Prob. 28.16QCh. 28 - Prob. 28.17QCh. 28 - Prob. 28.18QCh. 28 - Prob. 28.19QCh. 28 - Prob. 28.20QCh. 28 - Prob. 28.21QCh. 28 - Prob. 28.24QCh. 28 - Prob. 28.25QCh. 28 - Prob. 28.26QCh. 28 - Prob. 28.27QCh. 28 - Prob. 28.28QCh. 28 - Prob. 28.29QCh. 28 - Prob. 28.30QCh. 28 - Prob. 28.32QCh. 28 - Prob. 28.33QCh. 28 - Prob. 28.34QCh. 28 - Prob. 28.35QCh. 28 - Prob. 28.37QCh. 28 - Prob. 28.38QCh. 28 - Prob. 28.39Q
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