Strength of Materials
Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction

along the plane
horizontally
at an angle equal to the angle of friction to the inclined plane
vertically

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to principle of transmissibility of forces, the effect of a force upon a body is

The same at every point in its line of action
Minimum when it acts at the C.G. of the body
Maximum when it acts at the center of gravity of a body
Different at different points in its line of action

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to principle of moments

positive and negative couples can be balanced
the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point
if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
if a system of coplanar forces is in equilibrium, then their algebraic sum is zero

ANSWER DOWNLOAD EXAMIANS APP