Engine_2014 : Engineering Safety - 2130/2355
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| Which of the following statements is true regarding oxygen indicators? |
| A) A gas sample should only be taken from the lowest portion of the tank to test for oxygen. |
| B) Prolonged exposure to gases such as CO2 may affect the accuracy of the indicator. |
| C) An oxygen reading of 14% is considered safe for entering. |
| D) All of the above. |
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