FAA Aviation Mechanic General (AMG)Aircraft Drawings, Weight and BalanceEasy
A maintenance manual drawing shows a hydraulic actuator with part of its outer housing removed by an imaginary cutting plane, revealing the internal pistons and seals. What type of drawing view is this?
- AAssembly view
- BSectional view
- CSchematic view
- DDetail view
Show answer & explanationAnswer & explanation
Correct answer: B. Sectional view
A sectional (cutaway) view uses an imaginary cutting plane to slice through a part, exposing internal features that would otherwise be hidden. This is different from a schematic, which represents system function symbolically, not physical shape.
Why the other options are wrong
- A. An assembly view shows how complete parts fit together, not internal cutaways.
- C. A schematic shows system function with symbols, not physical cross-sections.
- D. A detail view enlarges a small area but doesn't necessarily cut through it.
Sectional (Cutaway) View
A drawing view created by an imaginary cutting plane through an object to reveal internal details not visible from the outside.
- Uses hatching/cross-hatch lines to show cut material
- Common for complex internal components like actuators, valves
- Different from schematic, which is symbolic not physical
Memory trick: Section = 'slice' it open to see the guts