M7 Maintenance Practices Sub-Module No 9 (Quiz No:1)

Pipes and Hoses

Quiz

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1. To lessen the possibility of the pipe, wall kinking when it is being bent, it may be filled with a….., Which can be removed after the bending operation ?
   1.   Same metal alloy
   2.   Special unfuseable alloy
   3.   Special fusible alloy
2. Before filling the pipe with fusible alloy ,the pipe shouls be ……... First ?
   1.   Oiled
   2.   Greased
   3.   Dyed
3. After bending, the pipe should be unloaded from fusible alloy, by immersing it in………. Until all the alloy has run out ?
   1.   Cool water
   2.   Boiling water
   3.   Oven
4. A new piece of tubing should be cut approximately …..Than the tube to be replaced to provide for minor variations in bending?
   1.   10 percent longer
   2.   10 percent shorter
   3.   Equal to
5. If a tube cutter is not available, or if tubing of hard material is to be cut, use a fine-tooth hacksaw, preferably one having…….?
   1.   12 teeth per inch
   2.   32 teeth per inch
   3.   132 teeth per inch
6. A small amount of flattening in bends is acceptable, but the small diameter of the flattened portion must not be less than ………..Of the original outside diameter ?
   1.   75 percent
   2.   25 percent
   3.   57 percent
7. Bore test done with ……..., By use of a ball bearing being rolled in both directions through the hose ?
   1.   Flexible pipes
   2.   Loose pipes
   3.   Rigid pipes
8. The diameter of the ball should be……….. Of the internal diameter of the hose’s end fittings ?
   1.   90%
   2.   60%
   3.   30%
9. The AGS system uses a…... Flare ?
   1.   74 deg
   2.   32 deg
   3.   25 deg
10. The AN system uses flares of……... Flare ?
    1.   32 deg
    2.   25 deg
    3.   74 deg