Question

Longerons are used to oppose __________

(a) bending

(b) expansion only

(c) contraction only

(d) drag

This question was posed to me by my college director while I was bunking the class.

I would like to ask this question from Configuration Layout topic in portion Configuration Layout Considerations of Aircraft Design

Answer 1

Right choice is (a) bending

To elaborate: Longerons are structural members of an aircraft. They are heavy and used to prevent the bending. Longerons are fewer in numbers and primarily opposes the loads which can result in the bending stress and can cause the bending of structure. Their placement should be considered while designing the aircraft.