Aviation Standard Test Battery-E (ASTB E) Practice Test

What is a characteristic of a truss fuselage design?

1. It has a solid single structure

2. It is made up of triangular groupings of materials

3. It is primarily constructed of composite materials

4. It provides less internal space compared to a monocoque design

The correct answer is: It is made up of triangular groupings of materials

A truss fuselage design is characterized by its structural configuration, where the framework consists of interconnected elements forming triangular shapes. This design approach leverages the inherent strength of triangles to distribute loads and stresses effectively throughout the structure. The triangular arrangement provides optimal rigidity and stability while minimizing weight, which is essential in aviation for improved performance and efficiency. The other options do not accurately reflect the defining features of a truss fuselage. A solid single structure refers more to monocoque designs, which rely on a single shell for strength. Composite materials can indeed be used in various fuselage designs, but they are not a defining factor of a truss fuselage, which traditionally employs metal or wood. Lastly, although a truss design may offer less internal space compared to a monocoque, the focus here is on the structural characteristics rather than internal volume.