On the National Fire Protection Association hazardous materials classification placard, the blue diamond represents:
A) reactivity.
B) fire hazard.
C) specific hazard.
D) health hazard.
Question 2
If a scene becomes unsafe after you have entered, you should FIRST:
A) notify the EMS supervisor and medical director.
B) remove yourself and your crew from the scene.
C) attempt to neutralize the threat.
D) call for assistance on the radio.