Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?

In the given figure, it represents a nut cracker. In the diagram, mark the position of the fulcrum F and the line of action of load L and the effort E.

The given figure shows a nut cracker. Name the class of lever present in it.

(Choose from: Class II lever / Class I lever)

In the given figure it represents a diagram which shows a wheel barrow. You are asked to mark the position of fulcrum F and to draw arrows to show the directions of load L and effort E. Also tell that what class of lever is the wheel barrow? And give one more example of the same class of lever.