California ICC UST Inspector Practice Exam

What must be done to ensure the safety of a confined space entry?

1. Using proper ventilation

2. Checking for hazardous atmospheres

3. Both using proper ventilation and checking for hazardous atmospheres

4. Having a permit for entry

The correct answer is: Both using proper ventilation and checking for hazardous atmospheres

To ensure the safety of a confined space entry, it is essential to utilize both proper ventilation and to check for hazardous atmospheres. Proper ventilation helps to replenish oxygen levels, remove harmful gases, and maintain a safe working environment within the confined space. This is crucial because confined spaces can often have limited airflow, leading to the accumulation of toxic substances or a depletion of breathable air. Additionally, checking for hazardous atmospheres involves testing for the presence of flammable gases, toxic substances, and oxygen deficiency or enrichment. This step is vital because it allows for the identification of immediate dangers that could jeopardize the safety of individuals entering the space. Combining these two practices creates a comprehensive safety protocol that effectively mitigates risks associated with confined space entry. Following this dual approach ensures that workers are not only entering a space that has adequate air quality but are also aware of and protected from potential hazards that may exist.