Recreational Vehicle (RV) Technician Practice Test

What is the primary purpose of a carbon monoxide (CO) detector in an RV?

1. To provide ventilation in the RV

2. To alert occupants to dangerous levels of carbon monoxide

3. To detect smoke and fire

4. To monitor fuel efficiency

The correct answer is: To alert occupants to dangerous levels of carbon monoxide

The primary purpose of a carbon monoxide (CO) detector in an RV is to alert occupants to dangerous levels of carbon monoxide. This gas is colorless, odorless, and tasteless, making it particularly hazardous because it can build up without anyone realizing it. CO is a byproduct of combustion that can occur from various sources, such as gas appliances, generators, and vehicle engines. When the concentration of carbon monoxide in the air reaches unsafe levels, the detector sounds an alarm, providing occupants with critical information to take immediate action, such as ventilating the RV or evacuating the space. This function is essential for preventing CO poisoning, which can lead to serious health consequences or even death if not addressed promptly. Other choices do not fulfill the primary role of a CO detector. For instance, while ventilation is important in maintaining air quality, it is not the primary function of a CO detector. Similarly, CO detectors are not designed to detect smoke or fire, nor do they monitor fuel efficiency. Thus, the correct answer regarding the function of this vital safety device is that it alerts occupants to dangerous levels of carbon monoxide.