1.

IN_ORDER_TO_FIND_THE_DIFFERENCE_IN_ELEVATION_BETWEEN_TWO_POINTS_P_AND_Q,_A_LEVEL_WAS_SET_UPON_THE_LINE_PQ,_30_M_FROM_P_AND_1280_M_FROM_Q._THE_READING_OBTAINED_ON_STAFF_KEPT_AT_P_AND_Q_WERE_RESPECTIVELY_0.545_M_AND_3.920_M._FIND_THE_TRUE_DIFFERENCE_IN_ELEVATION_BETWEEN_P_AND_Q??$

A. 3.226 m
B. 3.343 m
C. 3.265 m
D. 3.345 m
Answer» D. 3.345 m


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