In the Rise and Fall method of leveling, the arithmetic check is:
Choose the correct answer
Sum of BS = sum of FS
Sum of rises - sum of falls = last RL - first RL = sum of BS - sum of FS
Sum of HI = sum of RL
Sum of IS = sum of FS - sum of BS
Correct Answer
B. Sum of rises - sum of falls = last RL - first RL = sum of BS - sum of FS
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Rise and Fall arithmetic check: sum of BS - sum of FS = sum of rises - sum of falls = last RL - first RL. This complete check detects errors in intermediate sights too (advantage over H.I. method which does not check intermediate sights individually). Both methods should give same final RL.
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