Engine_2014 : Engineering Safety - 1502/2355
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| The pressure gages on the air cylinder and the regulator should be checked and compared before putting on a positive pressure type self-contained breathing apparatus. Which of the following is the maximum acceptable differential readings permitted to exist between the two gages? |
| A) 20 PSI |
| B) 200 PSI |
| C) 1000 PSI |
| D) 2000 PSI |
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