Question 8 - Dry powder is usually blue? Chemical fire extinguishers are yellow. I've been using these resources for a while and I have found I have learned many incorrect things. These resources are harmful and should be removed and revised immediately
Question 8 - Dry powder is usually blue? Chemical fire extinguishers are yellow.
I've been using these resources for a while and I have found I have learned many incorrect things.
These resources are harmful and should be removed and revised immediately