M6 Materials And Hardware Sub-Module No 6(Quiz No:1)

Pipes and Unions

Quiz

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1. …………. lines are used where there is a risk of foreign object damage ?
   1.   Copper
   2.   Aluminum
   3.   Steel
2. Do not use…... tubing and fittings in any oxygen system assembly ?
   1.   Steel
   2.   Titanium
   3.   Aluminum
3. If the code markings are hard or impossible to read, it may be necessary to test samples of the material for hardness by ………. testing ?
   1.   Hardness
   2.   Tensile
   3.   Bending
4. ………. will react with petroleum products and can ignite ?
   1.   Air
   2.   Oxygen
   3.   Nitrogen
5. ……. threads have no sealing capability ?
   1.   Machine
   2.   Pipe
   3.   Both
6. A …….. tube fitting consists of a sleeve and a nut ?
   1.   Permanent
   2.   Flared
   3.   Bead
7. All AN steel fittings are colored ………….?
   1.   Gray
   2.   Blue
   3.   Black
8. ……... fittings create a permanent connection that is virtually maintenance free ?
   1.   Swaged
   2.   Flareless
   3.   Bead
9. …….. is a synthetic rubber compound which has an acetylene base ?
   1.   Neoprene
   2.   Butyl
   3.   Teflon™
10. A complete universal assembly includes a bolt (AN775) that has…………. passages ?
    1.   Longitudinal
    2.   Transverse
    3.   Longitudinal and transverse