Moderate
The steel used in steel cored conductors is usually__________?
Correct answer: C. mild steel
- A. alloy steel
- B. stainless steel
- C. mild steel
- D. high speed steel
- E. all of the above
Explanation
The steel core of a steel-cored conductor provides mechanical strength and is commonly made from galvanised mild steel. Aluminium supplies most of the current-carrying capacity, while the steel core carries the tensile load.
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