College

According to Table 1 of the respirable crystalline silica standard, for which of the following activities should a wet method of dust control be used?

A. Crushing machines
B. Handheld grinders for mortar removal (such as for tuckpointing)
C. Handheld grinders for uses other than mortar removal
D. Walk-behind milling machines and floor grinders

Answer :

Final answer:

According to the respirable crystalline silica standard, wet methods of dust control should be used for activities involving crushing machines, handheld grinders for mortar removal, and walk-behind milling machines. Handheld grinders for other uses do not necessarily require wet control methods. This helps minimize exposure to respirable crystalline silica.


Explanation:

Respirable Crystalline Silica Standard: Wet Method Dust Control

According to the respirable crystalline silica standard, specific activities require the use of a wet method for dust control to minimize exposure risks. Here are the relevant activities:

  1. Crushing machines
  2. Handheld grinders for mortar removal (such as for tuckpointing)
  3. Walk-behind milling machines and floor grinders

Although the use of wet methods can effectively control dust in these activities, handheld grinders for uses other than mortar removal may not necessarily require such measures. Therefore, the activities for which a wet method should be used include:

  • Curshing machines
  • Handheld grinders for mortar removal
  • Walk-behind milling machines and floor grinders

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