Which statement best describes safe operation of a man-trip?

Which statement best describes safe operation of a man-trip?

• A. It should be operated irregularly
• B. It should be operated under full control at all times
• C. It should be shared between two operators on each trip
• D. It should be run at maximum speed

Answer: (B)

Keeping the man-trip under full, continuous control at all times is essential because it ensures predictable movement you can start, stop, and slow down as needed, respond quickly to signals, and stop safely if anything unsafe appears. In underground settings, conditions can change rapidly—obstacles, workers, or equipment may appear in the route—so the operator must be able to manage speed and direction and stay in contact with the hoist operator. This disciplined control helps prevent sudden or erratic movement and reduces the chance of collisions or injuries. Operating irregularly introduces unpredictable motion, which is dangerous. Having two operators on a single trip can create confusion and conflicting commands, undermining safe control. Running at maximum speed eliminates the necessary stopping distance and responsiveness, greatly increasing the risk of collision or derailment.

Keeping the man-trip under full, continuous control at all times is essential because it ensures predictable movement you can start, stop, and slow down as needed, respond quickly to signals, and stop safely if anything unsafe appears. In underground settings, conditions can change rapidly—obstacles, workers, or equipment may appear in the route—so the operator must be able to manage speed and direction and stay in contact with the hoist operator. This disciplined control helps prevent sudden or erratic movement and reduces the chance of collisions or injuries.

Operating irregularly introduces unpredictable motion, which is dangerous. Having two operators on a single trip can create confusion and conflicting commands, undermining safe control. Running at maximum speed eliminates the necessary stopping distance and responsiveness, greatly increasing the risk of collision or derailment.