Civil Engineering - Theory of Structures

Exercise :: Theory of Structures - Section 1

16. 

A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is :

A. 4.0 mm
B. 4.5 mm
C. 5.0 mm
D. 5.5 mm
E. 6.0 mm

Answer: Option C

Explanation:

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17. 

The force in BF of the truss shown in given figure, is

A. 4t tension
B. 4t compression
C. 4.5t tension
D. 4.5t compression
E. zero.

Answer: Option D

Explanation:

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18. 

The radius of gyration of a section of area A and least moment of inertia I about the centroidal axis, is

A.
B.
C.
D.

Answer: Option C

Explanation:

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19. 

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be

A.
B.
C.
D.

Answer: Option D

Explanation:

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20. 

In plastic analysis, the shape factor for rectangular section, is

A. 1.4
B. 1.5
C. 1.6
D. 1.7

Answer: Option B

Explanation:

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