When a rectangular beam is loaded transversely, the maximum compressive stress d

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Question
When a rectangular beam is loaded transversely, the maximum compressive stress develops on
Options
A. bottom fibre
B. top fibre
C. neutral axis
D. every cross-section.

Correct Answer

top fibre

Strength of Materials problems

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1. Failure of riverted joints is due to
Options
A. Tearing of the plates between the rivet hole and the edge of the plate
B. Tearing of plates between rivets
C. Shearing of rivets
D. Crushing of rivets
E. All the above.

2. The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known
Options
A. buckling factor
B. slenderness ratio
C. crippling factor
D. none of these.

5. Reactions at the supports of a structure can be determined by equating the algebraic sum of
Options
A. horizontal forces to zero
B. vertical forces to zero
C. moment about any point to zero
D. all the above.

7. The maximum compressive stress at the top of a beam is 1600 kg/cm² and the corresponding tensile stress at its bottom is 400 kg/cm² . If the depth of the beam is 10 cm, the neutral axis from the top, is
Options
A. 2 cm
B. 4 cm
C. 6 cm
D. 8 cm
E. 10 cm.

8. The neutral axis of a beam cross-section must
Options
A. pass through the centroid of the section
B. be equidistant from the top of bottom films
C. be an axis of symmetry of the section
D. none of these.

9. To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is
Options
A. middle half rule of columns
B. middle third rule of columns
C. middle fourth rule of columns
D. none of these.

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