Assembly and Rigging Workbook Questions
Table of Contents

Section A

1. Early airplanes usually used a __________ structure.

2. A(n) ____________ (what type) structure carries all of the structural loads in its skin and is referred to as a _____________ design.

3. The most common structural desgn for modern aircraft is a _____________ structure where the skin, bulkheads, formers, stringers, and other components carry the aerodynamic loads.

4. A(n) _____________ (what type) fuselage has a substrcuture to stiffen the external skin.

5. A structure that is built with more than one path for the stresses so a crack will not destroy the structure is called a(n) _____________ design.

6. The angle formed between the chord of the wing and the relative wind is known as the angle of _____________.

7. Air passing across an airfoil will create a region of _____________ (low or high) pressure above the airfoil.

8. What component attaches to the spars to give the wing the aredynamic shape it needs to produce lift? _____________

9. The center of lift of an aircraft is usually located _____________ (ahead or behind) the center of gravity.

10. Fabric-covered airplane wings usually have a(n) _____________ -type structure.

11. The steel wire that runs from the front spar inboard to the rear spar outboard in a truss-type wing is called a(n) _____________ wire.

12. A wing which uses no external struts or braces for support is called a(n) _____________ wing.

13. Milled skins for high-speed aircraft may be produced by conventional machining or by _____________ milling or by _____________ machining.

14. Laminated materials such as bonded honeycomb are used for aircraft structure beacuase they provide maximum _____________ as well as a forvorable strength to weight ratio.

15. Control surfaces are balanced so that their center of gravity is _____________ (ahead of or behind) the hinge line.

16. Stiffness of the thin sheet metal covering for a control surface may be increased by _____________ the metal skin.

17. The three primary controls of an airplane are:
a. _____________
b. _____________
c. _____________

18. On jet transport aircraft equipped with two sets of ailerons, only the _____________ (inboard or outboard) aileron is ued during high-speed flight.

19. A(n) _____________ is a control device that destroys lift by disrupting the airflow over a part of the wing.

20. The primary purpose of a winglet is to improve _____________ by reducing _____________ by diffusing the _____________ _____________.

21. _____________ _____________ (What unit) are pairs of small, low aspect ratio airfoil sections mounted on the upper suface of a wing to pull the high-energy air down onto the surface to prevent shock-induced separation.

22. The assembly of tail surfaces of an airplane is called teh _____________.

23. The extension of the vertical stabilizer that may extend nearly to the cabin section is known as a(n) _____________ fin.

24. An all movable horizontal tail surface is called a(n) _____________.

25. An all movable tail surface usally has a large tab installed on its trailing edge. This is known as a(n) _____________ (servo or anti-servo) tab.

26. The movable surfaces on a V-tail design are known as _____________.

27. The wings, tail, engine and landing gear are attached to the body of an aircraft, which is called the _____________.

28. In a _____________ (Pratt or Warren) truss fuselage, the stays carry only the tensile loads.

29. Both tensile and compressive loads are carried in the diagonal members of a _____________ (Pratt or Warren) truss fuselage.

30. Aircraft using a tailwheel type landing gear configuration are also called _____________ gear airplanes.

31. Aircraft using a nosewheel type landing gear configuration are also called _____________ gear airplanes.

32. When a landing gear is retracted into the structure, the _____________ (parasite or induced) drag is reduced.

33. Today, almost all piston-powered airplanes enclose the engine in a(n) _____________ cowling.

34. Heat is removed from the cylinders of an air-cooled engine by forcing air to flow through _____________ on the cylinders.

35. The amount of airflow through the fins of a high-powered engine is usually controlled by _____________ _____________ at the air exit.

36. Cowl flaps are normally _____________ (open or closed) during ground operations.

37. The two most common locations for turbojet or turbofan engine installations are:
a. _____________
b. _____________

Section B

1. The three axes of an airplane are:
a. _____________ or _____________
b. _____________ or _____________
c. _____________ or _____________

2. The ailerons rotate an airplane about its _____________ axis.

3. The elevators rotate an airplane about its _____________ axis.

4. The rudder will rotate an aircraft about its _____________ axis.

5. The _____________ is used to overcome the effects of aileron drag.

6. The two types of stability exhibited by an aircraft are:
a. _____________
b _____________

7. About which of the three axes of an airplane do each of these items provide stability:
a. Horizontal tail surfaces: _____________
b. Dihedral in the wing _____________
c. Vertical fin on the tail _____________

8. The fixed horizontal tail surface is called the horizontal _____________.

9. The movable horizontal tail surfaces are called the _____________.

10. The tail load of an airplane in level flight normally acts _____________ (upward or downward).

11. When the control wheel of the aircraft is pulled back, the trailing edge of the elevator moves _____________ (up or down).

12. An elevator downspring is used to provide a mechanical force on the elevators as a safety factor when the airplane is flown with its center of gravity near its _____________ (forward or rearward) limit.

13. If a pilot pushes the control yoke forward, the trailing edge of a stabilator will move _____________ (up or down).

14. To bank an airplane to the right, the aileron on the right wing moves _____________ (up or down)

15. The two aileron bellcranks are connected by a _____________ cable.

16. The temproray movement of the nose of an airplance toward teh wing that is rising at the begining of a turn is caused by _____________.

17. Which aileron travels a greater distance, the one moving up or the one moving down? The one moving _____________ (up or down)

18. A(n) _____________ - type aileron has its hing line located far enough back that its leading edge will protrude below the wing surface when the aileron is raised.

19. Many airplanes use rudder-aileron _____________ to compensate for aileron drag.

20. Depressing the right rudder pedal will move the trailing edge of the rudder to teh _____________ (right or left)

21. A(n) _____________ is usually mounted on a control surface to correct for an out-of-trim condition.

22. A balance tab moves in the _____________ (same or opposite) direction as the control surface to which it is attached.

23. Stabilators are normally equipped with _____________ (servo or anti-servo) tabs.

24. An anti-servo tab moves in the _____________ (same or opposite) direction as the control surface to which it is attached.

25. A servo tab moves in the _____________ (same or opposite) sirection as the control surface to which it is attached.

26. A spring tab moves only when the control forces are _____________ (high or low).

27. Large airplanes, which utilize an adjustable stabilizer, move the leading edge of the stabilizer up or down by means of a _____________.

28. Moving the leading edge of an adjustable stabilizer up, trims the airplane nose- _____________ (up or down).

29. When wing flaps are lowered, they increase both the lift and the _____________ that is produced by the wing.

30. When plain flaps are lowered, they _____________ (increases or decrease) the camber of the wing.

31. A(n) _____________ (what type) flaps are used to prevent the airflow from breaking away from the uper surface

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