What is the purpose of a strict permit to work system in a coal mine?

• A. To manage payroll for high-risk tasks.
• B. To document safety meetings only.
• C. To track equipment maintenance schedules.
• D. To control high-risk activities by authorising work, specifying safety requirements, and ensuring appropriate controls are in place before work begins.

Answer: (D)

The concept being tested is how formal risk control is applied to high‑risk tasks in mining. A strict permit to work is a formal authorisation system that ensures any high‑risk activity is properly planned and controlled before it starts. It assigns responsibility, requires a hazard assessment, and sets the exact safety conditions that must be in place, such as isolating energy sources, gas testing, ventilation requirements, fire precautions, rescue arrangements, and clear communication. Only when these controls are confirmed and documented can the work proceed, and the permit can specify what must be done if conditions change.

This is why the correct choice is about authorising work, detailing safety requirements, and ensuring appropriate controls exist before work begins. The other options miss the core purpose: payroll management, documenting safety meetings, or tracking maintenance schedules do not provide the proactive, task‑level risk controls needed for high‑risk mining activities.