After an emergency application of air brakes on a controlled track, what speed is allowed when proceeding?

After an emergency application of air brakes on a controlled track, what speed is allowed when proceeding?

• A. Not to exceed 10 MPH
• B. Not to exceed 20 MPH for one train length
• C. Not to exceed 30 MPH
• D. Not to exceed 40 MPH

Answer: (B)

After an emergency air brake application on a controlled track, you may proceed at not more than 20 mph for the length of the train. This slow, short movement gives you a safe window to verify that brakes release properly, the train remains under control, and there are no issues like dragging equipment or air leaks before resuming normal operation. The approach ensures you stay within the train’s braking capability while you recheck conditions in the block ahead. The other speeds aren’t allowed here because they don’t provide the required safety margin and brake-check capability after an emergency stop.

After an emergency air brake application on a controlled track, you may proceed at not more than 20 mph for the length of the train. This slow, short movement gives you a safe window to verify that brakes release properly, the train remains under control, and there are no issues like dragging equipment or air leaks before resuming normal operation. The approach ensures you stay within the train’s braking capability while you recheck conditions in the block ahead. The other speeds aren’t allowed here because they don’t provide the required safety margin and brake-check capability after an emergency stop.