Best Cleaner for Removing Fresh Dirt from the Wall

Question:

A food handler needs to remove a fresh layer of dirt from the wall. What cleaner should they use?

a) Acidic cleaner
b) Abrasive cleaner
c) Alkaline cleaner
d) Disinfectant cleaner

Final answer:

Answer:

To remove a fresh layer of dirt from the wall, a food handler should use an alkaline cleaner because it's effective against fats, oils, and proteins that may be present in the dirt.

Explanation:

For a food handler needing to remove a fresh layer of dirt from the wall, the cleaner that should be used is an alkaline cleaner. Alkaline cleaners contain strong bases such as sodium hydroxide or potassium hydroxide, which can effectively dissolve fats, oils, and protein-based substances. All-purpose cleansers, being neutral or weakly alkaline, are also safe for most surfaces and could be a suitable option for less challenging cleaning tasks. However, for fresh layers of dirt that may include grease or protein-based substances, an alkaline cleaner would be most effective.

Acidic cleaners are typically used for removing inorganic deposits like scaling and often contain strong mineral acids, so they wouldn't be the best choice for dirt on a wall. Abrasive cleaners might be unnecessarily harsh, potentially damaging the wall's surface. Disinfectant cleaners are intended for microbial control and do not necessarily address actual dirt removal. Therefore, the most suitable choice for cleaning a fresh layer of dirt off a wall is an alkaline cleaner.