Question

If the brakes go into emergency from an unknown cause, the train operator should immediately lap his brake handle to (19-99)

Answer 1

When the brakes go into emergency on a train, the train operator should lap the brake handle to the emergency position (19-99) to stop the train quickly.

Step-by-step explanation:

When the brakes of a train go into emergency from an unknown cause, the train operator should immediately lap his brake handle to the emergency position (19-99). Lapping the brake handle to the emergency position cuts off the air supply to the brakes, causing them to engage with maximum force. This helps bring the train to a stop as quickly as possible.