A staff reading taken on a bench mark or a point of known elevation is called -
(a) fore sight reading
(b) back sight reading
(c) intermediate sight
(d) any one of these.
The correct Answer Is
(b) back sight reading
(a) fore sight reading
(b) back sight reading
(c) intermediate sight
(d) any one of these.
The correct Answer Is
(b) back sight reading