Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 7 (Q.No. 14)
14.
A 30 m steel tape was standardised at 20°C measurements of distances were taken as 15°C. If the coefficient of linear expansion of the material of the tape were 0.00, 00112 degree centigrade, then the error, due to temperature, per tape length would be
- 0.00, 00560 m
+ 0.00, 00560 m
+ 0.00, 16800 m
- 0.00, 16800 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 2 of 2.

Kishan said:   6 years ago
Error of tape for temp. = Alpha x (tm-ts) x length of chain.

Arsha said:   6 years ago
@Rahulkhan:

Why L is taken as 90 when It's given as 30 in the question?

Koushal said:   5 years ago
In question asked per tap length so;
C/L = 00112*(15-20).
So. = -00560 will be answer.
So option A is correct.

Achint said:   5 years ago
It's not per meter tape length, it's per tape length So D is correct.

Majid said:   4 years ago
A is the correct answer.

Paras dhakad said:   4 years ago
B is the correct answer.


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