8.
If you cannot positively identify a metal by visual identification, it should be _________.
A.
Tested for unusual stress
B.
Given magnet and spark testing
C.
Treated as steel
D.
Given ring testing
9.
Corrosion presents a greater problem when it occurs in the vicinity of a/an _________.
A.
School building housing wood-working equipment
B.
Manufacturing plant with 100 automotive vehicles
C.
Electrified coal mine
D.
Office building lighted by fluorescent lighting
10.
A pipeline is buried in cinders, corrosion will occur when the current _________.
A.
Accumulates on the pipe's interior
B.
Equalizes
C.
Leaves the pipe
D.
Enters the pipe
5-27
EN0562
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