Computer · Surveying
Consider the following statements regarding a levelling staff: Assertion (A): The wear at the bottom of the staff is of no consequence if only differential levelling is performed. Reason (R): It is unnecessary to keep the absolute zero of graduation at the exact foot of the staff because the differences in staff readings represent the differences in level.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are true but R is NOT the correct explanation of A
- 2Both A and R are true and R is the correct explanation of A
- 3A is false but R is true✓
- 4A is true but R is false
Correct answer
A is false but R is true
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