If the radius of a simple curve is R the length of the chord for calculated off sets by the method of chords produced, should not exceed.

A. Temporary stations B. Main stations C. Subsidary station D. None

A. 16880m² B. 8440m² C. 1688m² D. 844m²

A. Cross staff B. Mason's square C. Theodolite D. Optical square

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