Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 6 (Q.No. 8)
8.
The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only
1 cm
5 cm
10 cm
100 cm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 2 of 5.

Raihan said:   1 decade ago
For 12 km the difference = 1 cm.

So for 18.2 km = 18. 2-1/12 = 1.52 cm = 15 mm.
(1)

Santosh Neelannavar said:   7 years ago
The correct answer 10cm.
18.2km =0.1m.
54.3km = 0.3m.
90km = 0.5m.
(1)

JEET said:   6 years ago
For distance upto 18.2 km is 10 cm.
For distance upto 54.3 km is 30 cm.
For distance upto 91 km is 50 cm.

Ref: RS Khurmi(clause 5.1)
(1)

Rakesh Kumar Chhalotre said:   8 years ago
12km - 1cm.

So, for 18.2km - 1.5cm = 15mm is correct.
(1)

Engr said:   9 years ago
I think units are in mm not cm.

It's 10mm not 10cm.
(1)

Nitish Mahato said:   1 year ago
10 cm in a length of 18.2 Km.
30 cm in a length of 54.5 km.
50 cm in a length of 91 km.
(1)

Badal kumar said:   6 years ago
10mm is the correct Answer.

Bhupesh said:   6 years ago
10mm is correct.

Shivam said:   5 years ago
I am not getting this. Please explain in detail.

Nayeem said:   5 years ago
Please explain the right answer.


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