What is required when carts are in use?

• A. Cart brakes engaged
• B. Carts must be turned off
• C. Carts must be empty
• D. Carts must be locked in the galley

Answer: (A)

Engaging the cart brakes is a safety measure to prevent unwanted movement while the cart is in use. When a cart is being rolled or loaded in the galley, or if the aircraft shifts or turbulence occurs, unbraked wheels can roll and cause injuries or spills. Applying the brakes keeps the cart stationary so crew can work safely and contents stay put. The other options aren’t universally required: turning the cart off isn’t a standard rule for use, carts can be in use with items inside, and locking the cart in the galley isn’t a mandatory step unless a specific procedure calls for it.