The assumption in the theory of bending of beams, is : material is homogeneous m

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Question
The assumption in the theory of bending of beams, is :
Options
A. material is homogeneous
B. material is isotropic
C. Young's modulus is same in tension as well as in compression
D. each layer is independent to expand or to contract
E. all the above.

Correct Answer

all the above.

Theory of Structures problems

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3. Critical path method
Options
A. is an improvement upon bar chart method
B. provides a realistic approach to daily problems
C. avoids delays which are very common in bar charts
D. was invented by Morgan R. Walker of Dupot and James E. Kalley or Remington U.S.A. in 1957
E. All the above.

4. If D is the duration, ES and EF are the earliest start and finish, LS and LF are latest start and latest finish time, then the following relation holds good
Options
A. EF = ES + D
B. LS = LF - D
C. LF = LS + D
D. D = EF - ES
E. all the above.

7. Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as
Options
A. Compound beams
B. Indeterminate beams
C. Determinate beams
D. Composite beams.

8. A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,
Options
A. 10 m
B. 12 m
C. 14 m
D. 16 m
E. 18 m

9. Total strain energy theory for the failure of a material at elastic limit, is known
Options
A. Guest's or Trecas' theory
B. St. Venant's theory
C. Rankine's theory
D. Haig's theory
E. Von Mises's theory.

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