What is an identifying feature of a carbon dioxide fire extinguisher?

Options

A. Red body and black neck
B. Yellow body and white neck
C. Red body and red bended neck
D. Yellow body and black bended neck

Answer

### Step-by-Step Solution

1. **Understanding Carbon Dioxide (CO2) Fire Extinguishers**:
- Carbon dioxide fire extinguishers are used to extinguish fires by displacing oxygen, which is essential for combustion. CO2 acts like a blanket over the fire, cutting off its oxygen supply.

2. **Identifying Features of CO2 Fire Extinguishers**:
- One of the key identifying features of a carbon dioxide fire extinguisher is its color scheme. The body of the extinguisher is typically painted red.

3. **Neck Color**:
- The neck of a CO2 fire extinguisher is often black. This color coding helps distinguish it from other types of extinguishers.

4. **Conclusion**:
- Therefore, the identifying feature of a carbon dioxide fire extinguisher is that it has a red body and a black neck.