Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 22 (Q.No. 7)
7.
If a 30 m length can be taped with a precision of ± 0.01 m, then the standard error of measuring 1.08 km with the same precision will be
Discussion:
13 comments Page 1 of 2.
Abhi said:
8 years ago
Anyone explain it.
Priya said:
7 years ago
Anyone please explain it.
Vikram Syal said:
7 years ago
0.36 is the right answer.
Phani said:
7 years ago
Ans = 1.08 * 1000 * 0.01 ÷ 30,
= 0.36.
= 0.36.
Dhaval said:
6 years ago
I think C is the right answer.
Arjun said:
6 years ago
Here, e is directly proportional to the √l.
Binay yadav said:
6 years ago
The Correct answer is C.
Kalpana said:
5 years ago
The Correct answer is C.
Soumyajit Mandal said:
5 years ago
The law of probability states that error(e) is proportional to sqrt of that line(L).
Therefore,
e1/e2 = √L1/√L2.
=>0.01/e2 = √30/√1080.
=>e2 = 0.06.
Therefore,
e1/e2 = √L1/√L2.
=>0.01/e2 = √30/√1080.
=>e2 = 0.06.
(2)
Raunak said:
3 years ago
Total error = +-(N x (error in the chain)^2).
N = no.of chain (L/30).
N = no.of chain (L/30).
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