单选题 When the entire storage area is full,new fault data,i.e,data for the current flight leg,will replace/overwrite the data for the oldest flight leg in the fault history.

单选题 The recirculation system uses a fan to move air from the passenger compartment to the main distribution manifold.This system reduces the amount of air necessary for the packs to supply.

单选题 The supply and exhaust fans install with V-band clamps.Arrows show the correct direction of flow.The supply and exhaust fans are interchangeable.

单选题 The RESET test switch is used to erase the fault history.Push the RESET switch while the VERIFY and the green GO lights are on.

单选题 When you install the antenna,the alignment arrow must point forward.

单选题 Gas pressure in the sense tube holds the fault pressure switch in the closed position.The other two pressure switches close when the gas pressure increases because of an overheat or fire condition.

单选题 The fans are single-stage fans with an integral induction motor.They each have a check valve and installas a unit.

单选题 The ventilation system uses differential pressure to pull air out of the airplane.The air moves through overboard vents from the cabin galley and the lavatory areas.