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# 300+ Strength Of Materials Questions and Answers PDF

## 300+ Strength Of Materials Questions and Answers PDF

### Multiple Choice Questions of SOM

According to Lami's theorem
(A) Three forces acting at a point will be in equilibrium
(B) Three forces acting at a point can be represented by a triangle, each side being proportional to the force
(C) If three forces acting upon a particle are represented in magnitude and direction by the
sides of a triangle, taken in order, they will be in equilibrium
(D) If three forces acting at a point are in equilibrium, each force is proportional to the sine of
the angle between the other two

A number of forces acting at a point will be in equilibrium if
(A) Their total sum is zero
(B) Two resolved parts in two directions at right angles are equal
(C) Sum of resolved parts in any two perpendicular directions are both zero
(D) All of them are inclined equally

The center of gravity of a triangle lies at the point of
(A) Concurrence of the medians
(B) Intersection of its altitudes
(C) Intersection of bisector of angles
(D) Intersection of diagonals

The angle of friction is the
(A) The angle between a normal reaction and the resultant of normal reaction and the limiting friction
(B) The ratio of limiting friction and normal reaction
(C) The ratio of minimum friction force to the friction force acting when the body is just about
to move
(D) The ratio of minimum friction force to friction force acting when the body is in motion