Associate Safety Professional Practice Exam

What type of hazard is associated with successful operation of a combustible gas indicator?

1. Requires electricity to operate

2. Requires oxygen to operate properly

3. Functions without a power source

4. Is sensitive to temperature fluctuations

The correct answer is: Requires oxygen to operate properly

The correct answer highlights that a combustible gas indicator requires oxygen to operate properly. This is because the combustion process, which the indicator detects, relies on the presence of oxygen. When combustible gases are present, they must mix with oxygen to ignite, thus allowing the indicator to function. The presence of oxygen is a critical factor for the detection of combustible gases to ensure accurate readings and safety monitoring. Understanding this hazard is essential for ensuring safety in environments where combustible gases may be present. Oxygen levels may vary in different environments, and operators must be aware that inadequate levels of oxygen could lead to false readings or failures in detection, potentially leading to safety hazards. The other options provided do touch upon characteristics of different types of gas detection technologies but do not accurately relate to the primary operation of a combustible gas indicator. Each device may have varying electrical requirements, environmental sensitivity, or functions depending on design, but oxygen's role as a necessary component in the detection and operation of such indicators makes it a fundamental hazard to consider in their use.