An oxygen indicator will detect _________.

An oxygen indicator will detect _________.

Question 1 of 270705eccef9ebacbc34ba4d46593

An oxygen indicator will detect _________.

Question 1 of 27070

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An oxygen indicator will detect _________.

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🔍 Key Concepts

• oxygen indicator vs. combustible gas indicator (what each instrument is designed to measure) • normal percentage of oxygen in air and what happens when it is too low • difference between detecting specific toxic gases (like carbon monoxide) and measuring oxygen level

💭 Think About

• Ask yourself: Is an oxygen indicator designed to measure the amount of oxygen present, or to identify each type of gas in the space? • Think about which hazard an oxygen indicator is meant to warn you about first: explosion risk, lack of breathable air, or specific poisons? • Consider what additional instruments are normally carried on board to detect explosive mixtures and specific toxic gases.

✅ Before You Answer

• Verify what an oxygen indicator actually reads on its scale (percent oxygen, lower explosive limit, or ppm of a specific gas). • Check which hazard is directly related to low oxygen concentration rather than to a particular chemical gas. • Confirm that detection of explosive gases and carbon monoxide usually requires different, specialized detectors.