Question

Choose the odd one out. Give reasons for your choice.

Beam balance, handle of a hand pump, spade, and crowbar

Answer 1

The odd one is the spade

1. Beam balance, the handle of a hand pump, and the crowbar is all examples of the first-class lever. Fulcrum lies between the load and effort.
2. Spade is an example of a third-class lever. Effort lies between the fulcrum and load.