Design Of Steel Structures Set 1

1.0 mm ✘ 1.5 mm ✘ 2.0 mm ✘ 2.5 mm ✔

zero ✘ 10 ✘ 100 ✘ infinity ✔

degree of permeability of roof ✘ slope of roof ✘ both (a) and (b) ✘ none of the above ✔

0.5 ✘ between 0.5 and 1.0 ✘ 1 ✔

1.5 d ✘ 2.0 d ✘ 2.5 d ✘ 3.0 d ✔

95.0 MPa on net area ✘ 105.5 MPa on net area ✘ 105.5 MPa on gross area ✘ 150.0 MPa on gross area ✔

Equal to load factor in determinate structures ✘ More than the load factor in determinate structures ✘ Less than the load factor in determinate structures ✘ Unpredictable ✔

rectangular beams up to 300 mm depth ✘ all rectangular beams ✘ solid circular beams only ✘ all square cross-section beams ✔

4 zones ✘ 5 zones ✘ 6 zones ✘ 7 zones ✔

Transfer load from top of end posts to bearings ✘ Keep the rectangular shape of the bridge cross-section ✘ Stiffen the structure laterally ✘ Prevent the sides-way buckling of top chord ✔