M6 Part 2
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M6 Part 2Please DO NOT SHARE
- 1.Corrosion caused by microbiological growth prone to occur in aircraft
- A.
Integral tank
- B.
Oil tank
- C.
Hydraulic tank
- 2.For a compression spring, the major strength consideration is the material’s
- A.
Compressive strength
- B.
Tensile strength
- C.
Shear strength
- 3.The class of fit used on most standard aircraft bolts is
- A.
Class 1
- B.
Class 3
- C.
Class 4
- 4.The material most preferred for fair lead, hydraulic seal is
- A.
Rubber
- B.
Copper
- C.
Teflon
- 5.Skydrol Hydraulic fluid will damage
- A.
Thermoplastic windshield
- B.
Butyl
- C.
Nylon
- 6.When correct tension is obtained, the number of thread showing outside the turn barrel must not be more than
- A.
1 thread
- B.
1.5 threads
- C.
3 threads
- 7.Strength of internal wrench MS bolt compared to AN bolt is
- A.
Same
- B.
High
- C.
Low
- 8.The advantage of gear reduction compared to direct drive in an aircraft engine is
- A.
Increase the propeller efficiency
- B.
Can use a larger engine on the same diameter propeller
- C.
Reduce the torque of the engine
- 9.Which one of the following materials is non-ferrous?
- A.
Cast iron
- B.
Tool Steel
- C.
Aluminium
- 10.7 x 19 cable is
- A.
Flexible cable
- B.
Extra-flexible cable
- C.
Performed cable
- 11.The principle alloy of stainless steel is
- A.
Chromium
- B.
Vanadium
- C.
Molybdenum
- 12.The term Al-Clad is used to designate a sheet of Aluminium alloy that has a coating of
- A.
Pure Aluminium
- B.
Copper
- C.
Zinc Chromate
- 13.What type of bearing is used for landing gear wheel?
- A.
Roller bearing
- B.
Ball bearing
- C.
Tapered roller bearing
- 14.
- A.
Ground end
- B.
Open end
- C.
Closed and Ground end
- 15.The locking feature used in the high temperature self-locking nut is achieved by
- A.
Distortion at the end of the nut
- B.
Insert plastic
- C.
Tab nut
- 16.Copper wire is tinned for protection against
- A.
Corrosion
- B.
Heat
- C.
Wear
- 17.In the turbojet engine, bearing oil seal is pressurized to
- A.
Keep the bearing cool
- B.
Make the seal more effective
- C.
Maintain sea level pressure in the bearing compartment
- 18.A combination of residual stresses and corrosive agent will cause
- A.
Filiform corrosion
- B.
Stress corrosion
- C.
Exfoliation corrosion
- 19.A shake-proof washer has
- A.
Saw tooth serrations
- B.
Two or more tabs
- C.
Thin metal places
- 20.Fatigue strength of a material is determined by
- A.
Applying an alternating force to the material and determine the number of cycles required to produce fracture
- B.
Applying tension load
- C.
Compressing the material
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