Strength of Materials
Coefficient of friction is the

ratio of limiting friction and normal reaction
the friction force acting when the body is in motion
the friction force acting when the body is just about to move
angle between normal reaction and the resultant of normal reaction and the limiting friction

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to Lami's theorem

Three forces acting at a point can be represented by a triangle, each side being proportional to force
Three forces acting at a point will be in equilibrium
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
If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
In actual machines

mechanical advantage is equal to velocity ratio
mechanical advantage is unity
mechanical advantage is greater than velocity ratio
mechanical advantage is less than velocity ratio

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
If a rigid body is in equilibrium under the action of three forces, then

the lines of action of these forces meet in a point & the lines of action of these forces are parallel
these forces are equal
the lines of action of these forces are parallel
the lines of action of these forces meet in a point

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Strength of Materials