Engine : Engineering Safety - 229/968
|
|---|
| « Previous Question |
| Which of the following statements is true regarding oxygen indicators? |
| A) The instrument is capable of providing an immediate accurate reading of any space with no delay. |
| B) Prolonged exposure to gases such as CO2 may affect the accuracy of the indicator. |
| C) A cotton filter placed in the end of the sampling tube prevents damaging the instrument when exposed to strongly acidic gases. |
| D) All of the above. |
loading answer...
| Comments |
|---|
| There are no comments for this question. |