Manufacturing Skill Standards Council (MSSC) Safety Assessment Practice Test

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Prepare for the MSSC Safety Assessment Exam. Utilize study materials and tackle multiple choice questions with guidance on each answer. Set yourself up for success!

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An odor is added to which substance to ensure it is detected easily?

  1. Nitrogen

  2. Oxygen

  3. Cleaning fluids

  4. Natural gas

The correct answer is: Natural gas

Natural gas is naturally odorless, making it difficult to detect in the event of a gas leak. To ensure safety and enable easy detection of potentially hazardous leaks, a strong-smelling compound called "mercaptan" (often described as having a rotten egg smell) is added to natural gas. This addition allows anyone in the vicinity to quickly notice the presence of gas, which can help prevent accidents or dangerous situations, such as explosions or asphyxiation. The other substances listed do not typically require an added odor for safety detection in the same manner as natural gas.

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