Q78
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are
A.
Cobalt, chromium & tungsten
AnswerB.
Cobalt, chromium & nickel
C.
Molybdenun, tungsten & chromium
D.
Cobalt, zirconium & molybdenum
Answer: Option A
Solution
Answer: Option A
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