Question

Define a machine in terms of its basic objective.
1. A device to transfer load to source
2. A device to transfer and transform motion and force from source to load.
3.  A device to transform force.
4. A device used to transfer force.

Answer 1

Correct Answer - Option 2 : A device to transfer and transform motion and force from source to load.

Explanation:

Machine:

A machine is a human-made device that uses power to apply forces and control movement to perform an action.

Machine: an assemblage of parts that transmit forces, motion and energy in a predetermined manner.

Simple Machine: any of various elementary mechanisms having the elements of which all machines are composed.  Included in this category are the lever, wheel and axle, pulley, inclined plane, wedge and screw.

A machine is a combination of rigid or resistant bodies, formed and connected so that they move with definite relative motions and transmit force from the source of power to the resistance to be overcome. A machine has two functions: transmitting definite relative motion and transmitting force