What are the circut breakers used for on the E-190?

• A. Electrical power for the coffee maker, work light, and ovens.
• B. Emergency signals and alarms.
• C. Coffee maker, work light, and ovens.
• D. Power for the galley refrigeration and water pump.

Answer: (C)

Circuit breakers are protective devices that interrupt electrical circuits to prevent damage or fire when a fault occurs. On the E-190, the galley circuit breakers are the ones that supply and protect power to the galley equipment used during service.

The best answer identifies the equipment typically powered by those galley breakers: the coffee maker, the work light, and ovens. These devices are all part of galley operations and rely on a dedicated electrical supply that the breakers protect. Other items like emergency signals and alarms, or galley refrigeration and the water pump, are usually wired to different circuits or buses and have their own protection and power arrangements, so they aren’t grouped with the galley breakers in the same way.