Physics · Surveying
Which of the following statement(s) about the rise and fall method in levelling is/are correct? Statement I: This method requires calculation of the height of instrument at every station. Statement II: The difference between a back sight and fore sight indicates a rise or fall. Statement III: The method provides an arithmetic check using the sums of back sights, fore sights, rises, and falls.
- 1Statements II and III only✓
- 2Statement II only
- 3Statements I and II only
- 4Statement I only
Correct answer
Statements II and III only
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