NEBOSH Practice Test

What could be a fire risk associated with floating roof tanks?

1. Increased ventilation

2. Leaks due to corrosion, damaged pipe work

3. Frequent inspections

4. Low humidity levels

The correct answer is: Leaks due to corrosion, damaged pipe work

The correct answer identifies a significant fire risk linked to floating roof tanks. Floating roof tanks are commonly used for the storage of volatile liquids, such as petroleum products. One of the primary risks they face is the potential for leaks. Over time, components like the tank roof, walls, and associated pipelines can become compromised due to factors such as corrosion or physical damage. When leaks occur, flammable liquids can escape, increasing the possibility of fire hazards, especially when exposed to an ignition source. The vapors from these flammable liquids can accumulate in the atmosphere, which poses serious safety risks, including explosions and fires. Regular maintenance and monitoring are essential to detect and rectify any leaks before they result in hazardous situations. In contrast, the other options do not present direct risks associated with the operation of floating roof tanks. Increased ventilation, while generally beneficial for dispersing vapors, does not directly increase fire risks. Similarly, frequent inspections serve as a preventive measure to identify potential hazards rather than a risk themselves. Low humidity levels can affect the combustibility of materials but are not a primary fire risk associated with floating roof tanks. Understanding these distinctions helps in effectively managing and mitigating fire risks in industrial settings.