The effective length of a double angle strut with angles placed back to back and

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The effective length of a double angle strut with angles placed back to back and connected to both the sides of a gusset plate, by not less than two rivets, is
Options
A. 0.5 L
B. 0.67 L
C. 0.85 L
D. L
E. 2 L

Correct Answer

0.85 L

Steel Structure Design problems

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2. On eccentrically loaded columns, the equivalent axial load may be obtained by
Options
A. adding the axial load, eccentric load, the product of the bending moment due to eccentric load and the appropriate bending factor
B. adding the axial load and eccentric load and subtracting the product of bending moment and appropriate bending factor
C. dividing the sum of axial load and eccentric load by the product of the bending moment and appropirate bending factor
D. none of these.

3. Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to
Options
A. 50%
B. 60%
C. 70%
D. 80%
E. 40%

4. The maximum tensile and compressive bending stress in extreme fibres of rolled I-sections and channels on the effective section, is
Options
A. 1500 kg/cm²
B. 1420 kg/cm²
C. 1650 kg/cm²
D. 2285 kg/cm²

9. For a cantilever beam of length L built-in at the support and restrained against torsion at the free end, the effective projecting length l is
Options
A. l = 0.7L
B. l = 0.75L
C. l = 0.85L
D. l = 0.5L
E. l = L

10. The deflection of beams may be decreased by
Options
A. increasing the depth of beam
B. increasing the span
C. decreasing the depth of beam
D. increasing the width of beam
E. none of these.

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