Inadequately lubricated or poorly maintained equipment can be a source of a fire.

• A. Yes
• B. No
• C. Sometimes
• D. Not sure

Answer: (A)

Equipment reliability and proper lubrication are critical for preventing fires in surface coal mining. When lubrication is inadequate or maintenance is poor, moving parts heat up from excess friction, which can spark or ignite if nearby flammable materials like oil, grease, or coal dust are present. Leaks of oil or hydraulic fluid can drip onto hot surfaces or accumulate with dust to form a combustible mix, and worn seals or exposed wiring from neglect can create electrical ignition sources. Because these fire hazards routinely arise from insufficient lubrication and maintenance, the statement is true: inadequately lubricated or poorly maintained equipment can be a source of a fire.