California ICC UST Service Technician Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the California ICC UST Service Technician Exam with our engaging quiz. Test your knowledge using a variety of questions, including multiple-choice and flashcards. Each question is accompanied by helpful hints and detailed explanations to boost your understanding.

Practice this question and more.

Air monitoring must be conducted _____________ when working within a confined space.

Before and after
Only before
Only after
Weekly

The correct answer is: Before and after

Air monitoring must be conducted both before and after working within a confined space to ensure the safety of personnel involved in the operation. Conducting air monitoring before entry is crucial for identifying any hazardous conditions that could pose risks, such as the presence of toxic gases, low oxygen levels, or flammable substances. This initial assessment allows for necessary precautions to be taken, including ventilation or other safety measures. After the work is completed, post-monitoring is equally important. It verifies that the air quality has returned to safe levels, ensuring that no residual hazards remain that could endanger workers during any subsequent activities or occupancy in that space. This dual approach not only promotes safety but also complies with regulations, which typically require thorough assessments both prior to and following any work in confined spaces.