What is the purpose of a face line brattice or line curtain?

What is the purpose of a face line brattice or line curtain?

• A. It is used to measure air quality at the face
• B. It directs air away from the face to prevent dust
• C. It’s a curtain hung from the last open crosscut to direct air into the face to eliminate dust and gas build up in the area
• D. It serves as a temporary warning device

Answer: (C)

Directing fresh air into the face with a line brattice or line curtain creates a controlled airflow path that keeps the face area ventilated. Hung from the last open crosscut, it forms a curtain that forces the intake air to flow directly to the working face, diluting and sweeping away dust and any built-up gases. This helps protect miners from dust inhalation and gas accumulation, improving safety and air quality at the face. It’s not meant for measuring air quality or as a warning device, and directing air away from the face would deprive the face of the needed fresh air.

Directing fresh air into the face with a line brattice or line curtain creates a controlled airflow path that keeps the face area ventilated. Hung from the last open crosscut, it forms a curtain that forces the intake air to flow directly to the working face, diluting and sweeping away dust and any built-up gases. This helps protect miners from dust inhalation and gas accumulation, improving safety and air quality at the face. It’s not meant for measuring air quality or as a warning device, and directing air away from the face would deprive the face of the needed fresh air.