Question 9
FrictionThe surfaces of conveyor belts are made rough so as to
- A.prevent the load from slipping.
- B.make them stronger.
- C.enable them to carry more load.
- D.protect them while carrying loads.
Show the answer and explanation
Answer: A (prevent the load from slipping.)
Explanation
A rough surface increases friction between the belt and the load, so the load does not slip.