(Alternate Peg Method) In the two-peg test of a dumpy level, the following observations are taken: Rod reading On point A On point B Instrument set-up near M (m) Instrument set-up near P (m) 0.296 1.563 0.910 2.140 Requirements: a. Determine the true difference in elevation between A and B. b. Determine the error in the line of sight for the net distance AB c. If the line of sight is not in adjustment, determine the correct rod reading on A with the instrument still set up near B.
(Alternate Peg Method) In the two-peg test of a dumpy level, the following observations are taken: Rod reading On point A On point B Instrument set-up near M (m) Instrument set-up near P (m) 0.296 1.563 0.910 2.140 Requirements: a. Determine the true difference in elevation between A and B. b. Determine the error in the line of sight for the net distance AB c. If the line of sight is not in adjustment, determine the correct rod reading on A with the instrument still set up near B.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:(Alternate Peg Method)
In the two-peg test of a dumpy level, the following observations
are taken:
Rod reading
On point A
On point B
Instrument set-up near M (m) Instrument set-up near P (m)
0.296
1.563
0.910
2.140
Requirements:
a. Determine the true difference in elevation between A and B.
b. Determine the error in the line of sight for the net distance AB
c. If the line of sight is not in adjustment, determine the correct
rod reading on A with the instrument still set up near B.
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