For electric lock, movement may begin as soon as what condition is met?

For electric lock, movement may begin as soon as what condition is met?

• A. The switch(es) have been properly lined.
• B. The 5 minute waiting period has elapsed.
• C. All personnel have cleared the area.
• D. The train has reset its braking.

Answer: (A)

Electric lock interlockings authorize movement as soon as the route is properly lined. When the switch(es) are set to the intended track and the interlocking lock is engaged, the route is considered lined and secured, allowing the train to move. The key is that the locking mechanism guarantees the switches are in the correct position for that route before movement is permitted. The other options don’t trigger movement in this setup. There isn’t a required 5-minute waiting period for electric lock to take effect. Clearing the area is a safety consideration, but it isn’t the specific condition that unlocks movement in the interlocking. And resetting the braking system isn’t the condition that authorizes movement within the electric lock framework.

Electric lock interlockings authorize movement as soon as the route is properly lined. When the switch(es) are set to the intended track and the interlocking lock is engaged, the route is considered lined and secured, allowing the train to move. The key is that the locking mechanism guarantees the switches are in the correct position for that route before movement is permitted.

The other options don’t trigger movement in this setup. There isn’t a required 5-minute waiting period for electric lock to take effect. Clearing the area is a safety consideration, but it isn’t the specific condition that unlocks movement in the interlocking. And resetting the braking system isn’t the condition that authorizes movement within the electric lock framework.