The cross sections of the beams of equal length are a circle and a square whose

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Question
The cross sections of the beams of equal length are a circle and a square whose permissible bending stress are same under same maximum bending. The ratio of their flexural weights is,
Options
A. 1.118
B. 1.338
C. 1.228
D. 1.108

Correct Answer

1.118

Strength of Materials problems

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1. For a beam, if fundamental equations of statics are not sufficient to determine all the reactive forces at the supports, the structure is said to be
Options
A. determinate
B. statically determinate
C. statically indeterminate
D. none of these.

3. The rise of a parabolic arch at quarter points, is equal to
Options
A. times the rise of the crown
B. times the rise of the crown
C. times the rise of the crown
D. times the rise of the crown
E. times the rise of the crown.

5. A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm². If the moment of inertia of the beam is 640 cm⁴, the overall depth of the beam is
Options
A. 10 cm
B. 12 cm
C. 15 cm
D. 16 cm
E. 18 cm.

6. The infiltration capacity during rain storm, is considerably reduced due to
Options
A. surface detention
B. soil moisture
C. compaction due to rain
D. washing of fine particles
E. all the above.

8. The time required by rain water to reach the outlet of drainage basin, is generally called
Options
A. time of concentration
B. time of overland flow
C. concentration time of overland flow
D. duration of the rainfall
E. none of these.

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