Question

1. personnel working in the vicinity of arc welding work must wear eye protection with tinted lenses. a. true b. false 2. drilling concrete requires use of a respirator because it produces a. asbestos b. lead c. toxic fumes d. silica dust

Explanation:

1. Personnel near arc - welding work need eye protection as arc - welding emits intense light that can damage eyes. Tinted lenses can help filter out harmful light.
2. Drilling concrete produces silica dust which is harmful when inhaled, so a respirator is required for protection.

Answer:

1. a. True
2. d. silica dust