UPSC ESE 2022 Civil Engineering Paper

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Question : 22 of 150

Marks: +1, -0

A tension member is made up of a single angle

200 \mathrm{mm} \times 150 \mathrm{mm} \times 15 \mathrm{mm}

with a gross area of

30 \mathrm{cm}^2

. Two rows of 18 mm diameter bolts (take hole diameter

=20 \mathrm{mm}

) are used (as shown in figure (a) and (b)). What is the net area?

$2460 \mathrm{mm}^2$
$2500 \mathrm{mm}^2$
$2400 \mathrm{mm}^2$
$2560 \mathrm{mm}^2$

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