4. A line of levels was run from benchmarks A to B, B to C, and C to D. The elevation differencesobtained between benchmarks, with their standard deviations, are listed below. What is thestandard deviation of that elevation difference?BM A to BM B = 34.65 + 0.10 ft; BM B to BM C = -48.23 + 0.08 ft; and BM C to BM D =-54.90 + 0.09 ft *

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Engineering

Civil Engineering

standard deviation of that elevation difference?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

4. A line of levels was run from benchmarks A to B, B to C, and C to D. The elevation differences
obtained between benchmarks, with their standard deviations, are listed below. What is the
standard deviation of that elevation difference?
BM A to BM B = 34.65 + 0.10 ft; BM B to BM C = -48.23 + 0.08 ft; and BM C to BM D =
-54.90 + 0.09 ft *

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