Gradually applied static loads do not change with time their magnitude direction

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Question
Gradually applied static loads do not change with time their
Options
A. magnitude
B. direction
C. point of application
D. all the above.

Correct Answer

all the above.

Theory of Structures problems

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1. If a concrete column 200 x 200 mm in cross-section is reinforced with four steel bars of 1200 mm² total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm² and E_s is 15 E_c
Options
A. 264 MN
B. 274 MN
C. 284 MN
D. 294 MN
E. None of these.

2. For determining the force in the member AB of the truss shown in the given figure by method of sections, the section is made to pass through AB, AD and ED and the moments are taken about
Options
A. joint C
B. joint B
C. joint D
D. joint A

4. Maximum shear stress theory for the failure of a material at the 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.

5. is the equation of Euler's crippling load if
Options
A. both at the ends are fixed
B. both the ends are hinged
C. one end is fixed and other end is free
D. one end is fixed and other end is hinged.

9. A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is
Options
A. 411 N mm
B. 511 N mm
C. 611 Nmm
D. 711 N mm

10. m₁ and m₂ are the members of two individual simple trusses of a compound truss. The compound truss will be rigid and determinate if
Options
A. m = m₁ + m₂
B. m = m₁ + m₂ + 1
C. m = m₁ + m₂ + 2
D. m = m₁ + m₂ + 3

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