Texas CNG(Compressed Natural Gas) Driver Practice

What protective measure must be taken when using stray or impressed currents?

1. Ignition prevention measures

2. No specific measures are required

3. Checking electrical resistance

4. Use of insulated piping

The correct answer is: Ignition prevention measures

When dealing with stray or impressed currents, ignition prevention measures are essential. Stray or impressed currents can create hazardous conditions, particularly in environments where flammable gases or combustible materials are present. These currents can cause sparks or arcing, leading to a risk of fire or explosion, especially when working with fuels like compressed natural gas. By implementing ignition prevention measures, you are effectively reducing the risk of accidental ignition caused by electrical faults or interference. These measures may include ensuring proper grounding, using equipment that is rated for explosive environments, and adhering to safety protocols that mitigate the potential for electrical arcing or equipment malfunction. In contrast, no specific measures being required would illustrate a lack of understanding of the risks associated with electrical currents in the presence of flammable materials. Checking electrical resistance is important for maintaining electrical systems but does not directly address the specific hazards posed by stray or impressed currents. Similarly, while insulated piping can be beneficial for preventing leaks or protecting against electrical shocks, it is not a standalone solution for the ignition risks posed by stray or impressed currents. Thus, employing comprehensive ignition prevention measures is a fundamental practice to ensure safety in these situations.