Which of the following is the correct pictogram for a class c fire extinguisher?
(a) green triangle
(b) red square
(c) blue circle
(d) yellow pentagram

(C) Blue circle

Explanation:

Class C fire extinguisher

The fire of Class C require an agent , which can extinguish the fire , so , Class C extinguisher is used to extinguish the fire ,

By , breading the element that feeds the fire , i.e. , heat , fuel and oxygen .

The fire can be extinguished by using carbon dioxide which will remove the oxygen .

The fire dies as soon as the oxygen supplied is cut down .

The fire extinguisher of class C contains ,  potassium chloride , mono ammonium phosphate, potassium bicarbonate,  potassium chloride, all of which readily puts off the class C fire .

The pictogram  of the Class C fire extinguisher is a Blue circle .