Match the following, in the context of the leveling staff.
|
a. |
Self-reading staff |
1. |
The smallest division is 5 mm. its length is about 3 metres. |
|
b. |
Solid Staff |
2. |
It has a moving target against which readings are taken by the staff man. The sliding target comes along with the vernier. |
|
c. |
Telescopic Staff |
3. |
The readings are always taken from the telescope hence appear inverted. Therefore, readings are taken from downwards. |
|
d. |
Target staff |
4. |
It has three telescopic lengths of 1.5, 1.5, and 2 meters when stretched out fully. Normally, its total length is 5 metres |
1
a - 1, b - 3, c - 4, d - 2
2
a - 2, b - 1, c - 4, d - 3
3
a - 3, b - 1, c - 2, d - 4
4
a - 1, b - 4, c - 3, d - 2
5
a - 3, b - 1, c - 4, d - 2