Question

Which of the following are examples of a class III lever?​

1.
2. 3.
4.

• A. Only 1 & 4
• B. 2,3 & 4
• C. Only 2 & 3

Answer 1

The correct option is B

2,3 & 4

Class III levers have the effort between the fulcrum and the load.
Picture 2 i.e. the forearm, picture 3 i.e. the stapler and picture 4 i.e. the tongs have effort between the fulcrum and the load.
While picture 1 i.e. the onion cutter has load between the fulcrum and the effort and therefore it is a class II lever.