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The methods of checking the results of leveling are as follows:There are three types of routes: closed routes, attached routes, and round-trip routes.
The closed route is generally used for the circular measurement of the site, starting from a level point and then returning to the starting point in a circle, if the elevation of the starting point is wrong, it cannot be found, and can only be used to measure the relative elevation with the starting point. <>
Attached routes are generally used for the measurement of strip lines such as roads and railways, and they are attached from one known point to another for comparison. If there is an error at a certain point, the error can be found through the measurement review. Generally, high-grade measurements are made in this way.
Return measurement is used for strip route measurements without attachment points, starting from the starting point and returning from the original route.
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Answer]: a, b, c
The quality inspection and acceptance inspection methods of surveying and mapping results mainly include general inspection, full inspection, and sampling inspection.
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Answers]: a, b, d, e
2021 Textbook P32
The verification is divided into: the number of car instrument checks, the check of the materials of the materials, the calculation of the first check, the lofting check and the acceptance check.
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Answers]: a, b, d, e
2020 edition of the teaching car number material p35 2019 edition textbook p26
The verification is divided into: instrument verification, data closure and first verification, calculation verification, lofting verification and acceptance verification.
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Answers]: a, c, d, e
Assess the quality control of on-site construction preparation. The inspection and review of construction control measurement results and protective measures, including: (1) the qualification certificate of the surveyor of the construction unit and the verification certificate of the measuring equipment; (2) The measurement results of the construction plane control network, the high-speed Changpin control network and the temporary water disturbance Xunyan punctuality and the protection measures of the control pile.
See textbook p113.
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Answer]: c
This question examines the principles and requirements of engineering surveying. The verification is divided into: instrument verification, data verification, calculation verification, lofting inspection, filial piety verification and acceptance inspection.
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Guess the answer]: a, b, d
Sort by the number of times the sample is taken by the draw key.
1) A sampling inspection.
2) Secondary heading sample inspection.
3) Multiple sampling inspections.
4) Sequential sampling test.
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Answer]: a, b, c
The content of the final inspection of the surveying and mapping results carried out by the quality inspection agency of the surveying and mapping unit includes the detection of mathematical accuracy (the accuracy of quality elements is detected and the quality grade is assessed), the inspection and acceptance record and report (the inspection report is prepared), and the quality of the problem is handled.
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