Math Problem Statement

A closed traverse has a total length of 774.662 m and a misclosure of -0.001 m in the easting and 0 m in the northing. What is the reciprocal of the precision of the survey? Provide your answer rounded to the nearest integer. E.g., if precision is 1/597.777853, its reciprocal rounded to the nearest integer should be 598

Solution

To calculate the reciprocal of the precision of the survey, we need to use the formula for the relative precision, which is based on the misclosure and the total traverse length.

The formula for precision is:

Precision=Total traverse lengthMisclosure distance\text{Precision} = \frac{\text{Total traverse length}}{\text{Misclosure distance}}

Step 1: Calculate the misclosure distance

The misclosure distance is the magnitude of the error, which can be found using the Pythagorean theorem:

Misclosure distance=(ΔE)2+(ΔN)2\text{Misclosure distance} = \sqrt{\left(\Delta E\right)^2 + \left(\Delta N\right)^2}

Where:

  • ΔE\Delta E is the misclosure in the easting direction (0.001m-0.001 \, \text{m})
  • ΔN\Delta N is the misclosure in the northing direction (0m0 \, \text{m})

Misclosure distance=(0.001)2+(0)2=0.000001=0.001m\text{Misclosure distance} = \sqrt{(-0.001)^2 + (0)^2} = \sqrt{0.000001} = 0.001 \, \text{m}

Step 2: Calculate the precision

Now that we know the misclosure distance is 0.001m0.001 \, \text{m} and the total traverse length is 774.662m774.662 \, \text{m}, we can compute the precision:

Precision=774.6620.001=774662\text{Precision} = \frac{774.662}{0.001} = 774662

Step 3: Find the reciprocal of the precision

The reciprocal of the precision is:

Reciprocal of precision=17746621.29×106\text{Reciprocal of precision} = \frac{1}{774662} \approx 1.29 \times 10^{-6}

Since we are asked to round the reciprocal of the precision to the nearest integer, the reciprocal is approximately:

774662774662

Thus, the reciprocal of the precision of the survey is 774662.

Would you like more details or further clarifications?


Here are 5 related questions:

  1. How do different types of surveying errors affect precision?
  2. What other factors can lead to survey misclosure in practice?
  3. How can misclosure be adjusted in a survey?
  4. What is the significance of precision in geodetic surveying?
  5. How does the precision of a closed traverse compare to other surveying methods?

Tip: Always double-check your measurements and calculations in surveying to minimize potential misclosures.

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Math Problem Analysis

Mathematical Concepts

Surveying
Geometry
Precision Calculation

Formulas

Precision = Total traverse length / Misclosure distance
Misclosure distance = sqrt((ΔE)^2 + (ΔN)^2)

Theorems

Pythagorean Theorem

Suitable Grade Level

College-level Surveying/Engineering