What is the consequence of failing to calibrate gas detectors regularly?

• A. No effect on safety.
• B. Increased likelihood of inaccurate readings and missed alarms.
• C. Detectors may drift and give false readings if not calibrated.
• D. Regular calibration is optional.

Answer: (B)

Regular calibration keeps gas detector readings aligned with actual gas concentrations. When calibration isn’t done on schedule, sensors can drift due to aging, environmental conditions, or contaminants, making readings unreliable and alarms less likely to trigger at dangerous levels. That’s why the consequence is an increased likelihood of inaccurate readings and missed alarms. Regular calibration helps keep detectors dependable and miners protected.