Question

With the SEAT BELTS switch selected to AUTO, the seat belt lights in the cabin will illuminate with:

a) Cabin altitude change
b) Landing gear retraction
c) Taxiing
d) Both a and b

Answer 1

The seat belt lights in the cabin illuminate when the SEAT BELTS switch is set to AUTO during cabin altitude changes and landing gear retraction, for passenger safety.

Step-by-step explanation:

When the SEAT BELTS switch is selected to AUTO in an aircraft, the seat belt lights in the cabin are designed to illuminate to advise passengers to fasten their seat belts. These lights typically come on automatically when certain conditions are met to ensure passenger safety. In the context of your options, the correct answer would be:

• Cabin altitude change - As a safety precaution, if the cabin altitude changes beyond a certain threshold, indicating a potential pressurization issue, The seat belt indicator lights would turn on to verify that passengers are in their seats with their seat belts securely fastened.
• Landing gear retraction - During the critical phases of flight, such as takeoff, when the landing gear is retracted, it's standard for the seat belt lights to be on to keep passengers seated and secure.

The correct choices in this context are: both a and b, as these are typical triggers for the seat belt lights to illuminate when the switch is set to AUTO.