NEBOSH Practice Test

Which of the following is considered an ignition source during maintenance or operations?

1. Electrical equipment

2. Ventilation systems

3. Storage tanks

4. Environmental conditions

The correct answer is: Electrical equipment

Electrical equipment is recognized as an ignition source during maintenance or operations due to its potential to create sparks or generate heat. This can occur through various means, such as overheating, short circuits, or wear and tear on electrical components. When maintenance activities are conducted, especially in environments where flammable materials are present, the risk of ignition increases significantly if electrical equipment is not properly managed. In contrast, ventilation systems, while crucial for maintaining a safe working environment by controlling airborne contaminants and heat, do not typically serve as ignition sources. Their main function is to enhance air quality rather than generate sparks or flames. Storage tanks, on the other hand, are usually designed to safely contain flammable substances and do not themselves ignite; however, they can pose risks if not maintained correctly, leading to leaked materials that could ignite. Environmental conditions, while they can influence the likelihood or severity of a fire, do not act as direct ignition sources. Therefore, the role of electrical equipment during maintenance highlights its significance in fire safety awareness and the need for appropriate precautions.