M6 Materials And Hardware Sub-Module No 5(Quiz No:1)

Fasteners

Quiz

 

1. Aircraft -------- used in airframe repair are either plain, lock, or special type ?
   1.   Nutplates
   2.   Washers
   3.   Lock Plates
2. --------- are used under hex nuts ?
   1.   Star Lock washers
   2.   Lock washers
   3.   Plain Washers
3. A sealant is also used to ensure complete sealing of the ----------?
   1.   Lock Plates
   2.   Nutplates
   3.   Washers
4. What are used where positive retention of a nut is required ?
   1.   Washers
   2.   Nutplates
   3.   Lock plates
5. The ------ must be new upon each application ?
   1.   Nutplates
   2.   Snap Ring
   3.   safety wire
6. A quarter of a turn of the ------- Fastener stud (clockwise) locks the fastener ?
   1.   Airloc
   2.   Camloc
   3.   Dzus
7. The Camloc fastener can be unlocked only by turning the stud -------- ?
   1.   Anti clockwise
   2.   Counterclockwise
   3.   Downward
8. Circlips are made from -------- steel wire, sheet or plate ?
   1.   Spring
   2.   Hardend
   3.   stainless
9. Like the rivet, the -------- requires a pneumatic hammer or pull gun for installation ?
   1.   Eye bolt
   2.   lock bolt
   3.   Jo-Bolt
10. The material used for the majority of aircraft solid shank rivets is ……………...?
    1.   Magnesium alloy
    2.   Copper alloy
    3.   Aluminum alloy

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M6 Materials And Hardware Sub-Module No 4(Quiz No:1)

Corrosion

Quiz

 

1. Corrosion is the --------- deterioration of a metal because of its chemical reaction with the surrounding environment ?
   1.   Electro chemical
   2.   Mechanical
   3.   Chemical
2. The type and aggressiveness of the corrosion prevention and control program depends on the operational --------- of the aircraft ?
   1.   Requirement
   2.   Environment
   3.   Material
3. The ------------ of water depends on the type and quantity of dissolved mineral and organic impurities and dissolved gasses in the water ?
   1.   Colour
   2.   Properties
   3.   Corrosiveness
4. Microbial growth must be removed completely to avoid ---------?
   1.   Oxidation
   2.   Corrosion
   3.   Grains
5. What occurs when two different metals have physical or electrical contact with each other ?
   1.   Stress Corrosion
   2.   Microbial corrosion
   3.   Galvanic corrosion
6. Pure’ aluminium, stainless steel and copper have………. To surface corrosion than aluminium alloy, magnesium alloy and non-stainless steels ?
   1.   More Resistance
   2.   Less Resistance
   3.   Equal Resistance
7. It is corrosion of metals in a metal-to-metal joint, corrosion at the edge of a joint even though the joined metals are identical ?
   1.   Stress Corrosion
   2.   Crevice Corrosion
   3.   Surface Corrosion
8. This corrosion often stems from the screening effect of silt, scale or corrosion deposits that reduce the oxygen concentration at local points on the metal surface ?
   1.   Surface Corrosion
   2.   Fretting Corrosion
   3.   Pitting Corrosion
9. Accelerated low-water corrosion (ALWC) is a particularly aggressive form of --------that affects steel piles in seawater near the low water tide mark ?
   1.   Microbial corrosion
   2.   Galvanic corrosion
   3.   Stress Corrosion
10. How many conditions must exist before electro chemical corrosion can occur ?
    1.   Two
    2.   Three
    3.   Four

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