Civil Engineering - Strength of Materials

11. 

If the width b and depth d of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of

A. b/d
B. d/b
C. (d/b)2
D. (b/d)2
E. (b/d)3.

Answer: Option D

Explanation:

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12. 

In the given below figure, the rivets with maximum stress, are :

A. 1 and 2
B. 1 and 3
C. 3 and 4
D. 2 and 4

Answer: Option D

Explanation:

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13. 

The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is

A. 1
B. 2
C. 3
D.
E.

Answer: Option B

Explanation:

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14. 

For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when L1 is equal to

A. 1.0 L
B. 0.7 L
C. 0.5 L
D. 0.35 L.

Answer: Option D

Explanation:

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15. 

Strain energy of a member may be equated to

A. average resistance x displacement
B. stress x strain x area of its cross-section
C. stress x strain x volume of the member
D. (stress)2 x volume of the member + Young's modulus E.

Answer: Option D

Explanation:

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