Engineering Mechanics
The velocity ratio of a single purchase crab winch can be increased by

Increasing the number of teeth of the pinion
All of these
Increasing the radius of the load drum
Increasing the length of the handle

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Different at different points on its line of action
Same at every point on its line of action
Maximum, if it acts at the center of gravity of the body
Minimum, if it acts at the center of gravity of the body

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
According to the law of moments, if a number of coplanar forces acting on a particle are in equilibrium, then

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

ANSWER DOWNLOAD EXAMIANS APP