How close to the face should a line curtain be hung?

How close to the face should a line curtain be hung?

• A. Not to exceed 12 feet
• B. Not to exceed 10 feet
• C. Not closer than 15 feet
• D. Any distance if visibility is maintained

Answer: (B)

Line curtains are a protective barrier placed near the face to intercept debris, dust, and fly rock during blasting or cutting operations. To be effective, they must be close enough to the face so that any flying material passes through the curtain before reaching workers. The standard is that the curtain should not exceed ten feet from the face, keeping it within reach of the debris and providing proper interception. If the curtain is placed farther away, its ability to stop or deflect debris decreases, increasing exposure risk. Options suggesting a greater distance or that any distance is acceptable ignore this protective requirement and weaken safety.

Line curtains are a protective barrier placed near the face to intercept debris, dust, and fly rock during blasting or cutting operations. To be effective, they must be close enough to the face so that any flying material passes through the curtain before reaching workers. The standard is that the curtain should not exceed ten feet from the face, keeping it within reach of the debris and providing proper interception. If the curtain is placed farther away, its ability to stop or deflect debris decreases, increasing exposure risk. Options suggesting a greater distance or that any distance is acceptable ignore this protective requirement and weaken safety.