CORRECT!

9). One of the main functions of flaps during the approach and landing is to

a). decrease the angle of descent without increasing the airspeed.
b). provide the same amount of lift at a slower airspeed.
c). decrease lift, thus enabling a steeper-than-normal approach to be made.
The answer is:
b). provide the same amount of lift at a slower airspeed.

Flaps are the control surfaces usually located on the wingroot nearest to the fuselage. They extend together into the airflow, creating additional lift due to their downward and rearward extension. But, as we know, the penalty for generating increased lift is a corresponding increase in drag and it is this addional drag which allows the pilot to increase the angle of descent without increasing airspeed during a landing approach.

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