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Structural Design Specifications - Engineering

Q1:

Pick up the correct statement from the following:

A Net sectional area of a tension member is its gross area less deductions for holes

B Gross diameter of river hole is 1.5 mm in excess of its normal diameter if it is greater than 25 mm

C Gross diameter of the rivet hole is 2.0 mm in excess of its normal diameter if it is greater than 25 mm

D The total deduction area for the holes is obtained by the product of the thickness and sum of the diameters of the holes in any chain across the member

E All the above.

ANS:E - All the above.

I think option B is wrong.