M6 Materials And Hardware Sub-Module No 2(Quiz No:1)

Aircraft Materials Non-Ferrous

Quiz

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1. Heat-treatment is a series of operations involving the heating and subsequent cooling of alloys in their ?
   1.   Solid state
   2.   Liquid state
   3.   Gases state
2. The ability of copper to dissolve in aluminium__________ with temperature ?
   1.   Constant
   2.   Decreases
   3.   Increases
3. The properties of aluminium can only be changed by work ?
   1.   Hardening
   2.   Annealing
   3.   Hardening and annealing
4. The temperature of the water before quenching should not exceed ________?
   1.   85 °F
   2.   95 °F
   3.   98°F
5. ______ leaves the metal in the best condition for cold working ?
   1.   Tempering
   2.   Annealing
   3.   Forging
6. ________________ is the ability of a material to resist stress without breaking ?
   1.   Hardness
   2.   Toughness
   3.   Strength
7. Copper is an example of ?
   1.   Ductile metals
   2.   Hard metals
   3.   Malleable metal
8. ___________is that property that enables a metal to return to its original size and shape when the force which causes the change of shape is removed ?
   1.   Malleability
   2.   Elasticity
   3.   Ductility
9. ______________numbers are based on the difference between the depth of penetration at major and minor loads ?
   1.   Brinell hardness
   2.   Rockwell hardness
   3.   Barcol tester
10. Cold working applies to mechanical working performed at temperatures __________ the critical range ?
    1.   Upper
    2.   Below
    3.   Same