The length of the line measured with a 30m chain was found to be 450m. Calculate the true length of the line if the chain was 0.15 in too long.
A. 447.75m
B. 450m
C. 450.675
D. 452.25m
Answer: Option D
Join The Discussion
Comments ( 1 )
Related Questions on Mine Surveying
The stations choosed by main survey lines called . . . . . . . .
A. Temporary stations
B. Main stations
C. Subsidary station
D. None
The 90° corners of a building are set out on the ground by, easily . . . . . . . .
A. Cross staff
B. Mason's square
C. Theodolite
D. Optical square
The arithmetical check for levelling is . . . . . . . .
A. $$\sum {BS} + \sum {FS = {\text{First RL + Last RL}}} $$
B. $$\sum {FS} - \sum {BS} = {\text{Last RL + First RL}}$$
C. $$\sum {BS} - \sum {FS} = {\text{Last RL}} - {\text{ First RL}}$$
D. All
0.15 in too long means chain has positive error. so answers is 447.75m