SSC JE Civil Engineering 25-Sep-2019 Shift 1 Solved Paper

Question : 125 of 200

Marks: +1, -0

In a chain surveying work of a traverse, it is necessary to apply the correction due to sag for the tape. The correction is:

either negative or positive
always negative
dependent on the temperature conditions
always positive

Validate

Solution:

In a chain surveying work of a traverse, it is necessary to apply the correction due to sag for the tape.
The correction for the sag is:

C_g=1/24(W/P)^2L

where W = the weight of the tape per span length
The sign of this correction is always negative. If both the ends of the tape are not at the same level, a further correction due to slope is required.
Well sinking is the work in which the units of measurement for estimation of quantitier are not identical.

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