Engine_2014 : Engineering Safety - 1593/2355
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| The unit shown in the illustration is pressurized and operated by __________ . |
| A) squeezing the spring- loaded nozzle |
| B) depressing the puncturing lever and squeezing the nozzle |
| C) removing the cartridge guard, lifting the puncturing lever, and squeezing the nozzle |
| D) tightening the vent cap and puncturing the cartridge seal |
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Illustration SF-0006
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