theory-of-structures civil-engineering question and answers -Page 5

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Theory of Structures problems

1. A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If E_steel = 2 x 10⁶ kg/cm², the side of the rod, is
Options
A. 1 cm
B. 1.5 cm
C. 2 cm
D. 2.5 cm

2. Pick up the correct statement from the following:
Options
A. Hoop strain of the walls of a cylinder due to liquid is
B. Longitudinal strain in the walls of a cylinder due to liquid is
C. Volumetric change in the cylinderdue to liquid is
D. All the above.

4. Keeping the depth d constant, the width of a cantilever of length l of uniform strength loaded with a uniformly distributed load w varies from zero at the free end and
Options
A. at the fixed end
B. at the fixed end
C. at the fixed end
D. at the fixed end

8. A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm²), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is
Options
A. 25 N
B. 30 N
C. 35 N
D. 40 N

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