EXAMINATION ACADEMIC YEARS 2009/2010

DEPARTMENT / PROGRAM STUDYSUBJECT DAY / DATE DURATION CHARACTERISTIC

LECTURER

: :::::

NON DIPLOMA BATCH 1AIRFRAME28/8/2010100 MENITCLOSE BOOKIr. Simusbi, M.Sc.,MM., DR. Edi Priyono, Ir. M.Mochajan

TIPS ON EXAM PARTICIPANTS 1. Write the name completely and clearly.2. Read it carefully and then do (start from the easiest)3. Follow the instructions and rules exam.4. Good luck

I. OBJECTIVE 50 POINTS.

1. . The function of wing is for:

a. Installing engine and produces lift. c. Storage fuel and its system

b. Installing main landing gears. d. Answer a,b,and c are correct

2. . The function of front spar and rear spar on wing structure is for:

a. Forming wing box with other part, as a main structure of a wing.

b. Forming wheel well only

c. Forming fuel integral tank with other part

d. Answer a and c are correct

3. . The fuselage structures which use welded steel pipes is called:

a. Geodetic type construction c. Truss Type construction

b. Thrust construction d. Semi monocoque type construction

4. . On fail-safe construction means:

a. A construction is consisted of some layers on some parts are connected together.

b. If one layer on one part fail, the strength of that structure is not affected to the total strength.

c. A construction is made from one and big part .

d. Answer a and b are correct.

5. . The function of wing rib :

a. To form the wing airfoil

b. To strengthen the wing airfoil together with other wing parts

c. To strengthen wing spar

d. Answer a and b are correct

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6. . Primary flight control surface consist of :

a. Flap, spoiler, and slot c. Flaperon and stabilizer

b. Aileron, elevator, and rudder d. Servo Tab

7. . Flaps are constructed at front section of a wing are called :

a. Leading edge c. Leading edge flaps

b. Trailing edge flaps d. Leading edge slots

8. Spoiler are surfaces which installed at :

a. Under the wing surface

b. Above the wing surface

c. On upper wing surface and in front of flap surface

d. On Upper wing surface

9. Control surfaces affecting the pitch of an airplane that are located forward of the wing are called canards. Their contribute to pitch stability is which one of these :

a. Stabilizing statically c. Destabilizing statically

b. Destabilizing dynamically d. Stabilizing dynamically

10. The main function of longerons on lower structure is:

a. Bearing all loads act on floor structure

b. Bearing all loads on fuselage.

c. Withstanding all loads of passanger only

d. All above answer are not correct

11. Stringers are aircraft part which installed at :

a. Radome structure c. Wing and empennage structure

b. Fuselage structure d. Both answer b and c are correct

12. Load which acts at stringers :

a. Compression loads

b. Gravity loads

c. Tensile loads

d. Torsion loads together with other surrounding element.

13. Gusset is a part which functions:

a. To avoid local load c. To avoid local shear stress

b. To avoid local concentration load d. To avoid local buckling and bending

14. Bending moment which caused a change in longitudinal stability is:

a. Tail lift to the C.P. c. Tail lift to the wing lift

b. Tail lift to the C.G. d. No answer are correct.

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15. To the all parts of the integral tank should be performed with :

a. Anodized and promer zinc chromate

b. Sealing compound

c. Rubber sealing

d. Bonding sheet

16. The surge tank has function to:

a. Store fuel from fuel tank if there is axcessive fuel caused by refueling or over rolling.

b. Store the breather pipe

c. Store the outer pipe

d. Both answers a and b are correct

17. The booster pump in the integral tank is installed at:

a. Main tank c. Collector tank

b. Surge Tank d. All answer are correct

18. The acces cover in the integral tank are used for :

a. Installing all equipments and components during assembling of final equipment and components.

b. Inspection and servicing include maintenance of the fuel tank

c. The upper access is used for gravity refueling

d. All above answer are correct.

19. An airplane after rigged on their flight control system, they must be flown hand-off at :

a. Cruising speed c. Never exceed speed

b. Sea level d. Landing speed

20. An airplane is controlled directionally about its vertical axis by :

a. The rudder c. The aileron

b. The elevator d. Both b and c

21. Flaps increase the effective lift of an airfoil by:

a. Increasing the wing camber c. Introducing drag at the C.P.

b. Reducing drag at wing structure d. Increasing angle of attack of wing airfoil

22. The movement of adjustable stabilizer must have:

a. A stop for the one position movement

b. Stops for both position movement

c. No stop on both movement

d. All above answers are not correct

23. All flight control surfaces on position neutral is :

a. To form uncomplete airfoil c. To form complete airfoil

b. To form different airfoil d. To form another NACA number

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24. On semi monocoque structure of section function of frame is :

a. To perform fuselage cross section.

b. To absorb part aircraft load on fuselage.

c. To joint with fuselage skin , stringer.

d. The answers a, b, and c are correct.

25. Wing spar is consisted of :

a. Upper and lower sparcaps c. Web and clips

b. Web and up-right d. Answers a and b are correct

26. Integral fuel tank on wing structure is consisted of main parts :

a. Front and rear spar c. Upper and lower wing skin

b. Ribs and stringer d. All above answers are correct

27. The purpose of flight control balancing is:

a. To avoid vibration

b. To avoid flutter of the flight control surface

c. To reduce flutter

d. To add the mass balance

28. Primary flight control surface used to :

a. Aileron to roll / bank control, elevator to pitch control and rudder to yaw control

b. Aileron to yaw control, elevator to roll/ bank control and rudder to pitch control

c. Aileron to pitch control, elevator to yaw control and rudder to roll/ bank control

d. All answer a, b, and c are correct

29. In the past, spar were mainly manufactured of wood, they can be :

a. Solid wood , laminated wood c. Built-up wood I-Beam

b. Built-up wood box spar d. All Answers a, b, and c are correct.

30. The wires that extend from the front spar to the rear spar and those are running diagonally from inboard to outboard oppose the force that tend to drag against the wing and pull it backward are called :

a. Drag wires c. Front drag wires

b. Anti drag wires d. Rear drag wires

31. A wing truss construction consist of these parts, except :

a. Spars c. Drag wires and anti drag wires

b. Compression members d. Stringer

32. There are number of methods that have been used to reduce the effect of wingtip vortices as below, except :

a. By installing fuel tank on the wing tips

b. By installing tip plates on wing tips.

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c. By using of winglet.

d. By Installing wing fence.

33. The advantage of the T-Tail configuration are

a. Rudder effectiveness is improve

b. Allows the engines to be mounted on the aft fuselage

c. Spin recovery may be improved because of better airflow with the stabilizer moved higher and out of the turbulence of the wing and fuselage

d. All answer a, b, and c are correct.

34. When load is parallel to normal axis, the component will causea. Tension stressb. Bending Stressc. Torsion Stressd. Tensile stress

35. What is the part of A/C produce mostly lift forcea. Fuselageb. Tail boomc. Stabilizerd. Wing

36. What is the part of A/C produce vortex?a. Slatb. Flapc. wingletd. Spoiler

37. Vertical tail contribute to stabilizeda. Pitching, rollingb. Rolling, yawingc. Yawing, pitchingd. Pitching, yawing and rolling

38. Horizontal tail contribute to stabilizeda. Yawingb. Pitchingc. Rollingd. Turning

39. Left aileron down and right aileron up, A/C tend toa. Pitch downb. Pitch upc. Turn to the leftd. Turn to the right

40. Left aileron down and right aileron up, A/C tend toa. CW rollingb. CCW rollingc. Directional rollingd. All answers above are not true

41. If A/C has no rudder, the A/Ca. Can turn leftb. Cannot rollingc. Cannot pitching d. Cannot turn left

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42. Lift force always perpendicular toa. Relative Windb. Chord linec. Longitudinal axisd. Transversal axis

43. Drag force alwaysa. Perpendicular relative windb. Parallel longitudinal axisc. Perpendicular longitudinal axisd. Parallel relative wind

44. Angle between Chord line and fuselage axis is calleda. AOAb. Angle of incidentc. Swept angled.

45. A/C Called stable whena. CG behind CPb. CP in front of CGc. CG in front of CPd. CP behind CG

46. Drag wire only applied toa. Compression stressb. Bending Stressc. Tension stressd. Tensile stress

47. The component changes the camber of the wing and increases both its lift and drag for and given angle of attack.

a. Spoilerb. Aileronc. Spard. Flaps

48. An Aircraft in where the wing is above and clear of the fuselage, usually mounted on strut called :

a. Parasol Monoplaneb. High Wing Monoplanec. Low Wing Monoplaned. Longitudinal Monoplane

49. An has the wing located at or near the bottom of the fuselage

a. Parasol Monoplaneb. Longitudinal Monoplanec. High Wing Monoplaned. Low Wing Monoplane

50. A/C structure has internal arrangement of formers and stringers are used to provide additional rigidity and strength to the skin.

a. monocoqueb. semi-monocoquec. truss type structured. a and c are correct.

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II. SUBJECTIVE 25 POINTS

1. What are the 4 criteria for an aircraft structure?a. ___________________________b. ___________________________c. ___________________________d. ___________________________

(4 key points)

2. Based on its function, what are 2 categories of an aircraft structure?a. _________________________________b. _________________________________ (2 key points)

3. What are the components in the typical semi-monoque frame fuselage structure?a. ________________b. ________________c. ________________d. ________________e. ________________

(5 key points)

4. What are the loads that act on aircraft structure?______________________ and ___________________________ (2key points)

5. Define the causes of aircraft structure damage?a. ___________________b. ___________________c. ___________________d. ___________________e. ___________________f. ___________________

(6key points)

6. Define the tools that used for leveling the aircraft?a. _______________________b. _______________________c. _______________________

(3key points)

7. What are things to be checked in wing of structure alignments?a. _______________________b. _______________________c. _______________________

(3key points)

=FINISH and GOOD LUCK=

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