Question-Answer:
The levelling is carried out between two
stations P and Q separated by 1000 m. The
Back Sight (BS) reading is noted as 0.70 m on station P, whose BM is
240.00 m. Next,
the Fore Sight (FS) reading is taken on an intermediate point and the
value is 1.25 m.
Then the instrument is shifted to a new location and BS is taken on
intermediate point
as 0.85 m. Finally, the FS reading is taken on station Q as 1.10 m.
What is the Reduced
Level of Q?
- (a) 239.20 m
- (b) 240.80 m
- (c) 241.25 m
- (d) 241.80 m
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