A staff reading taken on a point whose elevation is to be determined as on a change point is called -
(a) fore sight reading
(b) back sight reading
(c) intermediate sight
(d) none of these.
The correct Answer Is
(a) fore sight reading
(a) fore sight reading
(b) back sight reading
(c) intermediate sight
(d) none of these.
The correct Answer Is
(a) fore sight reading