Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 3 (Q.No. 19)
19.
The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto
Discussion:
23 comments Page 3 of 3.
Ansha said:
9 years ago
Please explain clearly from where 360 came.
(1)
Arvin Sethi said:
1 decade ago
Least count is equal to ratio of (length of one division on main scale to no. of divisions of vernier) i.e least count= s/n.
S = 360/1080.
N = 60.
Lc = 1/180 degrees = 20 seconds.
S = 360/1080.
N = 60.
Lc = 1/180 degrees = 20 seconds.
(1)
Suresh Awasthi said:
1 decade ago
1080/60 = 18.
According to the answer sheet answer is 20.
According to the answer sheet answer is 20.
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