404 Airframes & systems

Question 1

1. The empennages is responsible for all except:
   a. Provides stability to the aircraft
   b. Includes the rudder and elevator
   c. Always contains a wheel to assist with landing
   d. Is responsible for yaw and pitch control

Answer 1

c

Question 2

3. Monocoque construction consists of:
   a. Longerons and beams or tubes, which create the skeleton of the fuselage
   b. Formers and bulkheads, a stressed skin is attached which is load bearing
   c. Bulkheads and stringers for added stability, lining the length of the fuselage
   d. Longerons, stringers and girders in a football shape

Answer 2

b

Question 3

2. Truss construction is one of the three main types of fuselage construction. This type is an assembly
   made of:
   a. Formers and bulkheads, usually in an oval shape
   b. Longerons, beams and tubes, creating the skeleton of the fuselage
   c. Bulkheads and former beams with added stringers for stability
   d. Bulkheads and longerons, usually made of composite materials

Answer 3

b

Question 4

4. The planform of an aircraft is:
   a. The length from one wing tip to the other wingtip
   b. The distance from the leading edge to the training edge of the wing
   c. The shape of the wing as seen from above
   d. The part of the wing attached to the body of the aircraft, usually the widest part

Answer 4

c

Question 5

5. Flaps are usually located on the training edge of the wing. Their purpose is to:
   a. Modify the camber of the wing to change the aircraft’s flight performance
   b. Modify and interrupt the airflow over the wing
   c. Control the rolling motion of an aircraft
   d. Provide bracing for cantilevered wings

Answer 5

a

Question 6

6. The empennage contains all parts except:
   a. The vertical stabilizer or fin
   b. The rudder, for controlling yawing motion
   c. The dive breaks for controlling descent rate and speed
   d. The elevator for controlling pitch

Answer 6

c

Question 7

7. Which is not an advantage of tricycle landing gear?
   a. More stable, less likely to nose over
   b. Better take off and landing visibility
   c. Increased drag while in flight
   d. Improved crosswind control while taxiing

Answer 7

c

Question 8

8. Which is a disadvantage to tail wheel landing gear?
   a. Less drag than nose wheel landing gear configuration
   b. Simple and easy to maintain system
   c. The propeller is further away from the ground when the aircraft is taking
   d. Less forward visibility while taxiing

Answer 8

d

Question 9

9. Which is not one of the types of oleo shock absorbers?
   a. Oleo (oil filled)
   b. Oleo-Aerol (oil filled with a spring)
   c. Oleo-Elastane (oil filled with rubber padding)
   d. Oleo-Pneumatic (oil filled with compressed air)

Answer 9

c

Question 10

10. What is a single cantilever shock absorber?
    a. Formed metal rods that can bend under the impact of landing
    b. A triangle shaped landing gear that remains rigid under the impact of landing
    c. A series of springs attached to the bottom of the landing gear
    d. Low pressure tires which absorb the impact of landing

Answer 10

a

Question 11

11. The empennages is responsible for all except:
    a. Provides stability to the aircraft
    b. Includes the rudder and elevator
    c. Always contains a wheel to assist with landing
    d. Is responsible for yaw and pitch control

Answer 11

c