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In chain surveying, following lines are used:
  • a)
    Base line, check line, contour line
  • b)
    Base line, contour line, tie line
  • c)
    Check line, tie line, contour line
  • d)
    Base line, check line, tie line
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
In chain surveying, following lines are used:a)Base line, check line,...
In chain surveying, following lines are used
Base Lines:
It is main and longest line, which passes approximately through the center of the field.
All the other measurements to show the details of the work are taken with respect of this line.
Check Line:
A check line also termed as a proof line is a line joining the apex of a triangle to some fixed points on any two sides of a triangle.
A check line is measured to check the accuracy of the framework. The length of a check line, as measured on the ground should agree with its length on the plan.
Tie or subsidiary lines:
A tie line joints two fixed points on the main survey lines.
It helps to checking the accuracy of surveying and to locate the interior details.
The position of each tie line should be close to some features, such as paths, building etc.
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Most Upvoted Answer
In chain surveying, following lines are used:a)Base line, check line,...
In chain surveying, following lines are used
Base Lines:
It is main and longest line, which passes approximately through the center of the field.
All the other measurements to show the details of the work are taken with respect of this line.
Check Line:
A check line also termed as a proof line is a line joining the apex of a triangle to some fixed points on any two sides of a triangle.
A check line is measured to check the accuracy of the framework. The length of a check line, as measured on the ground should agree with its length on the plan.
Tie or subsidiary lines:
A tie line joints two fixed points on the main survey lines.
It helps to checking the accuracy of surveying and to locate the interior details.
The position of each tie line should be close to some features, such as paths, building etc.
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In chain surveying, following lines are used:a)Base line, check line,...
In chain surveying, the following lines are used: base line, check line, and tie line. Let's understand the purpose and function of each of these lines.

Base Line:
- The base line is the main reference line in a chain survey. It is a straight line of known length and direction.
- The base line is established with high precision using advanced surveying techniques.
- All other survey measurements are taken with reference to the base line.

Check Line:
- A check line is used to verify the accuracy of the survey work.
- It is a line that is measured independently of the base line.
- The check line is usually measured using a different method or instrument to ensure that the measurements are not biased.
- It helps to identify any errors or discrepancies in the measurements taken along the base line.

Tie Line:
- A tie line is used to connect the base line to the other survey points or features.
- It helps in extending the survey beyond the base line.
- Tie lines are measured perpendicular to the base line and are used to locate objects or features of interest.

Explanation of Correct Answer (Option D):
- The correct answer is option D, which states that base line, check line, and tie line are used in chain surveying.
- This combination of lines is commonly used in chain surveying to establish accurate measurements and verify the work done.
- The base line serves as the main reference, the check line ensures accuracy, and the tie line connects the base line to other survey points or features.

Other Options Explained:
- Option A (base line, check line, contour line): Contour lines represent elevation, and they are not directly related to chain surveying. Hence, this option is incorrect.
- Option B (base line, contour line, tie line): Similar to option A, the inclusion of contour lines is not relevant to chain surveying. Hence, this option is incorrect.
- Option C (check line, tie line, contour line): This combination does not include the base line, which is a crucial element in chain surveying. Hence, this option is incorrect.
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In chain surveying, following lines are used:a)Base line, check line, contour lineb)Base line, contour line, tie linec)Check line, tie line, contour lined)Base line, check line, tie lineCorrect answer is option 'D'. Can you explain this answer?
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