Question

Which of the following ventilation system is adopted for continuous miner headings?

• A. Dust less auxiliary ventilation
• B. Overlap system of ventilation
• C. Exhaust type of ventilation with ducting
• D. Forcing type of ventilation

Hint:

The overlap system ensures continuous airflow at the face of a continuous miner, critical for dust control and gas dilution.

Answer 1

The Correct Option is B

Continuous miner headings, commonly used in underground coal mining, require effective ventilation to manage dust, methane, and heat while ensuring worker safety. The overlap system of ventilation is typically adopted for such setups. In this system, auxiliary ventilation (often using ducting) is combined with the main ventilation airflow to create overlapping air currents, ensuring fresh air reaches the working face while removing contaminated air. Exhaust type with ducting (option 3) and forcing type (option 4) are specific methods but not the standard for continuous miners, which benefit from the overlap system’s balanced approach. "Dust less auxiliary ventilation" is not a recognized term in mining ventilation practices. Thus, the correct answer is Overlap system of ventilation.