If ?H and ?V are the algebraic sums of the forces resolved horizontally and vert

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Home Aptitude

Question
If ?H and ?V are the algebraic sums of the forces resolved horizontally and vertically respectively, and ?M is the algebraic sum of the moments of forces about any point, for the equilibrium of the body acted upon
Options
A. ?H = 0
B. ?V = 0
C. ?M = 0
D. all the above.

Correct Answer

all the above.

1. 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 :
Options
A. 4.0 mm
B. 4.5 mm
C. 5.0 mm
D. 5.5 mm
E. 6.0 mm

4. The tangential component of stress on an plane inclined ?� to the direction of the force, may be obtained by multiplying the normal stress by
Options
A. sin ?
B. cos ?
C. tan ?
D. sin ? cos ?
E. sin²?

6. Pick up the correct statement from the following:
Options
A. In a loaded beam, the moment at which the first yield occurs is called yield moment
B. In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
C. In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
D. The ratio of plastic moment to the yield moment, is called shape factor
E. All the above.