Final answer:
The emergency brake valve (EBV) is a critical component in a braking system that causes an emergency brake application when actuated. It is commonly used in the railway industry.
Step-by-step explanation:
The emergency brake valve (EBV) is a critical component in a braking system that causes an emergency brake application when actuated. It is commonly used in the railway industry and is responsible for engaging the emergency brakes on a train.
When the EBV is actuated, it closes off the main brake pipe and applies the brakes by supplying air pressure to the brake cylinders. This causes the brake shoes to press against the wheels, creating friction and stopping the train.