A rectangular bar of width b and height h is being used as a cantilever. The loa

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A rectangular bar of width b and height h is being used as a cantilever. The loading is in a plane parallel to the side b. The section modulus is
Options
A.
B.
C.
D. none of these.

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Strength of Materials problems

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1. The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is
Options
A. one-half of the radius
B. one-third of the radius
C. one-quarter of the radius
D. one-fifth of the radius
E. one-sixth of the radius.

2. For a simply supported beam of length L, the bending moment M is described as M = a (x - x³/L²), 0 ? x < L; where a is a constant. The shear force will be zero at
Options
A. the supports
B. x = L/2
C. x = L/3
D. x = L/3

3. The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is
Options
A. one-half of the base
B. one-fifth of the base
C. one-fourth of the base
D. one-fifth of the base
E. one sixth of the base on either side of centroid.

5. If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called
Options
A. chain riveting
B. zig-zag riveting
C. diamond riveting
D. none of these.

7. The ratio of the maximum deflections of a beam simply supported at its ends with an isolated central load and that of with a uniformly distributed load over its entire length, is
Options
A. 1
B.
C.
D.
E.

8. A beam is said to be of uniform strength, if
Options
A. B.M. is same throughout the beam
B. deflection is same throughout the beam
C. bending stress is same throughout the beam
D. shear stress is same throughout the beam
E. none of these.

9. A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
Options
A. half the distributed load
B. 3/8th the distributed load
C. 5/8th the distributed load
D. distributed load.
E. none of these.

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