If the wheels on a Skyway car are locked, the brakes can be released by which method?

If the wheels on a Skyway car are locked, the brakes can be released by which method?

• A. Manual release
• B. Electric release
• C. Air from the recovery vehicle
• D. Hydraulic release

Answer: (C)

When a Skyway car’s wheels are locked, the brake system is typically held by pneumatic pressure. Using air from the recovery vehicle is the designed way to release that pressure and free the brakes. The recovery vehicle can supply a controlled flow of air to the brake release line, venting or reducing the brake pressure so the wheels can turn again. On-board manual, electric, or hydraulic releases often require power, access, or functioning mechanisms that may be unavailable or ineffective once the car is immobilized, whereas external pneumatic air from the recovery vehicle provides a reliable, immediate means to release the brakes in this scenario.

When a Skyway car’s wheels are locked, the brake system is typically held by pneumatic pressure. Using air from the recovery vehicle is the designed way to release that pressure and free the brakes. The recovery vehicle can supply a controlled flow of air to the brake release line, venting or reducing the brake pressure so the wheels can turn again. On-board manual, electric, or hydraulic releases often require power, access, or functioning mechanisms that may be unavailable or ineffective once the car is immobilized, whereas external pneumatic air from the recovery vehicle provides a reliable, immediate means to release the brakes in this scenario.