Before lining a switch or derail, an employee must?

Before lining a switch or derail, an employee must?

• A. Ensure that any preceding movement has passed clearance points
• B. Ensure that the device is not locked, spiked, or tagged "out of service"
• C. Ensure that any preceding movement has passed clearance points and that the device is not locked, spiked, or tagged "out of service"
• D. Do not perform any checks

Answer: (C)

Before lining a switch or derail, you must verify two things: that any preceding movement has passed all clearance points and that the device is not locked, spiked, or tagged "out of service." Checking both ensures the track ahead is clear and the switch or derail is safe and available to operate. If you only verify one condition, you could still encounter a moving train or an out-of-service device, creating a hazardous situation. Therefore, the proper practice is to confirm both conditions before proceeding.

Before lining a switch or derail, you must verify two things: that any preceding movement has passed all clearance points and that the device is not locked, spiked, or tagged "out of service." Checking both ensures the track ahead is clear and the switch or derail is safe and available to operate. If you only verify one condition, you could still encounter a moving train or an out-of-service device, creating a hazardous situation. Therefore, the proper practice is to confirm both conditions before proceeding.