A beam is said to be of uniform strength, if B.M. is same throughout the beam sh

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Question
A beam is said to be of uniform strength, if
Options
A. B.M. is same throughout the beam
B. shear stress is same throughout the beam
C. deflection is same throughout the beam
D. bending stress is same at every section along its longitudinal axis.

Correct Answer

bending stress is same at every section along its longitudinal axis.

Strength of Materials problems

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1. If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of
Options
A. 2
B. 1/2
C. 8
D. 1/8
E. 4

5. The maximum deflection of
Options
A. a simply supported beam carrying a uniformly increasing load from either end and having the apex at the mid span is
B. a fixed ended beam carrying a distributed load over the span is
C. a fixed ended beam carrying a concentrated load at the mid span is
D. a cantilever beam subjected to a moment M at the free end is
E. All the above.

7. The effect of arching a beam, is
Options
A. to reduce the bending moment throughout
B. to increase the bending moment throughout
C. nothing on the bending throughout
D. ail the above.

8. The moment diagram for a cantilever carrying linearly varying load from zero at its free end and to maximum at the fixed end will be a
Options
A. triangle
B. rectangle
C. parabola
D. cubic parabola.

10. A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, centre of gravity of the section from flange side is
Options
A. h/4
B. h/3
C. h/2
D. 2/3 h.

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