Safety Technology Exchange Edition: Daily Question (2016.6.29)
Thread Content
1.jpg (Multiple-choice question) When cleaning explosive dust, one should ____. A. Use negative pressure; the use of compressed air for purging is prohibited. B. Use compressed air for purging. C. Use positive pressure for purging. D. Use nitrogen for purging. A. Use negative pressure; the use of compressed air for purging is prohibited
A. Use negative pressure; the use of compressed air for purging is prohibited
When cleaning explosive dust, one should ___A、use negative pressure; the use of compressed air for cleaning is prohibited_.
A. Use negative pressure; the use of compressed air for purging is prohibited
A. Use negative pressure; the use of compressed air for purging is prohibited
A. Use negative pressure; the use of compressed air for purging is prohibited
When cleaning explosive dust, one should __A__. A. Use negative pressure; the use of compressed air for purging is prohibited. B. Use compressed air for purging. C. Use positive pressure for purging. D. Use nitrogen for purging