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Which of the following is incorrect about the metre (line standard)?

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in Engineering Metrology by (829k points)
Which of the following is incorrect about the metre (line standard)?

(a) It is inoxidisable

(b) Kept at 10^oC

(c) Supported by two rollers

(d) Have a web type section

The question was asked in a job interview.

My query is from Line Standard in division Standards of Measurements of Engineering Metrology

1 Answer

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Right answer is (b) Kept at 10^oC

Explanation: The bar is kept under atmospheric pressure and at 0^oC. It has a shape of winged section. This section has a web whose surface lines are on a neutral axis.

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