What securement procedure must you use when setting out a single car?

• A. Single car securement and a squeal test
• B. Wheel chocks and brake line test
• C. Brake pipe test only
• D. Car dimples test

Answer: (A)

When setting out a single car, the main idea is to immobilize that car so it won’t move while detached. The correct procedure combines securing the car itself (single-car securement) with a quick check that the brakes are ready to hold it (the squeal test). The single-car securement ensures the car is held in place, and the squeal test confirms the brakes are effectively applied and the wheel won’t roll, giving you confidence the car is truly secured.

Wheel chocks and a brake-line test aren’t the specified combination for this single-car scenario, since wheel chocks alone don’t address the brake condition, and the brake-line or other tests don’t directly verify the car’s immobilization in this setting. A brake-pipe test or a car dimples test aren’t appropriate securement checks for this operation either.