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Which one of the following pairs is not correctly matched ?
- a)Declination : Horizontal angle between magnetic meridian and true meridian
- b)Bowditch's rule : employed to adjust closeing error of a closed traverse
- c)Deflection angle : Measured in case of open traverse instead of measureing included angle
- d)Reconnaissance : employed for Survey detailed and precise survey
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following pairs is not correctly matched ?a)Declinati...
Reconnaissance is not empolyed for precise survey. before starting any kind of survey work , the surveyor prepares a general reference for himself , like , reference sketch of ground , general lines alignment such as building lines etc. and various difficulties that might arise during the actual detailed survey.
so (D) is the most suited answer for this question.
so (D) is the most suited answer for this question.
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Which one of the following pairs is not correctly matched ?a)Declinati...
Incorrect Pairing in Surveying
In surveying, various terms and concepts are used to measure and record the data accurately. The given options are matched with the definition of the terms. One of the pairs is not correctly matched, and it is as follows:
Option D: Reconnaissance - Employed for a detailed and precise survey.
Explanation:
Reconnaissance is the initial stage of surveying that involves collecting preliminary data of the area before starting the actual survey. The primary purpose of reconnaissance is to assess the site's feasibility for conducting a survey and to identify any potential problems that may arise during the survey. During reconnaissance, the surveyor collects information about the area, such as its topography, location, accessibility, and ground conditions.
The other options are correctly matched as follows:
Option A: Declination - Horizontal angle between magnetic meridian and true meridian.
Declination is the angular difference between the true north and magnetic north measured in the horizontal plane. It is essential to determine the declination angle while conducting a magnetic survey to correct the magnetic bearing of the survey line to the true bearing.
Option B: Bowditch's Rule - Employed to adjust the closing error of a closed traverse.
Bowditch's rule is a mathematical formula used to adjust the closure error of a closed traverse. It is used to distribute the closure error proportionally among the various survey lines to minimize the error.
Option C: Deflection Angle - Measured in case of an open traverse instead of measuring included angle.
Deflection angle is the angle between the prolongation of the preceding line and the line under consideration. It is measured in the clockwise or anticlockwise direction from the preceding line to the line under consideration. It is used in open traverse to determine the direction of the next survey line.
Conclusion:
In conclusion, option D is not matched correctly with its definition. Reconnaissance is conducted to collect preliminary data of the area before starting the actual survey, and it is not used for detailed and precise surveying.
In surveying, various terms and concepts are used to measure and record the data accurately. The given options are matched with the definition of the terms. One of the pairs is not correctly matched, and it is as follows:
Option D: Reconnaissance - Employed for a detailed and precise survey.
Explanation:
Reconnaissance is the initial stage of surveying that involves collecting preliminary data of the area before starting the actual survey. The primary purpose of reconnaissance is to assess the site's feasibility for conducting a survey and to identify any potential problems that may arise during the survey. During reconnaissance, the surveyor collects information about the area, such as its topography, location, accessibility, and ground conditions.
The other options are correctly matched as follows:
Option A: Declination - Horizontal angle between magnetic meridian and true meridian.
Declination is the angular difference between the true north and magnetic north measured in the horizontal plane. It is essential to determine the declination angle while conducting a magnetic survey to correct the magnetic bearing of the survey line to the true bearing.
Option B: Bowditch's Rule - Employed to adjust the closing error of a closed traverse.
Bowditch's rule is a mathematical formula used to adjust the closure error of a closed traverse. It is used to distribute the closure error proportionally among the various survey lines to minimize the error.
Option C: Deflection Angle - Measured in case of an open traverse instead of measuring included angle.
Deflection angle is the angle between the prolongation of the preceding line and the line under consideration. It is measured in the clockwise or anticlockwise direction from the preceding line to the line under consideration. It is used in open traverse to determine the direction of the next survey line.
Conclusion:
In conclusion, option D is not matched correctly with its definition. Reconnaissance is conducted to collect preliminary data of the area before starting the actual survey, and it is not used for detailed and precise surveying.
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Which one of the following pairs is not correctly matched ?a)Declination : Horizontal angle between magnetic meridian and true meridianb)Bowditch's rule : employed to adjust closeing error of a closed traversec)Deflection angle : Measured in case of open traverse instead of measureing included angled)Reconnaissance : employed for Survey detailed and precise surveyCorrect answer is option 'D'. Can you explain this answer?
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