Question

A Bulkhead door is installed in the development heading of a coal mine to control

• A. Coal-dust explosion
• B. Sudden inrush of water
• C. Firedamp explosion
• D. Air flow

Hint:

Bulkhead doors are critical safety features in mines, often installed in areas prone to flooding risks.

Answer 1

The Correct Option is B

A bulkhead door in the development heading of a coal mine is a robust structure designed to prevent or control hazards. Its primary purpose in this context is to act as a barrier against the sudden inrush of water, which can occur due to flooding from nearby water bodies or old workings. While bulkhead doors can also influence air flow (option 4) or be part of explosion containment strategies (options 1 and 3), their primary role in development headings is to protect against water inrush, a significant hazard in underground mining. Thus, the correct answer is Sudden inrush of water.