Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

db³/36
bd³/36
bd³/12
db³/12

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
Which of the following statement is incorrect?

The velocity ratio of a machine is the ratio of load lifted to the effort applied
The ratio of the limiting friction to the normal reaction is called coefficient of friction
A force acting in the opposite direction to the motion of the body is called force of friction
A machine whose efficiency is 100% is known as an ideal machine

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then

Their algebraic sum is zero
Their lines of action are at equal distances
The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point
The algebraic sum of their moments about any point in their plane is zero

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
Non-coplanar non-concurrent forces are those forces which

Do not meet at one point and their lines of action do not lie on the same plane
None of these
Meet at one point, but their lines of action do not lie on the same plane
Do not meet at one point but their lines of action lie on the same plane

ANSWER DOWNLOAD EXAMIANS APP