What is the frequency used for depths of 2 to 3 mm in induction hardening? Options: A . &nbsp1200 Hz B . &nbsp3000 Hz C . &nbsp5400 Hz D . &nbsp9600 Hz

What is the frequency used for depths of 2 to 3 mm in induction hardening?

Question - What is the frequency used for depths of 2 to 3 mm in induction hardening?

Options:

A . 1200 Hz

B . 3000 Hz

C . 5400 Hz

D . 9600 Hz

Answer: Option D
Answer: (d).9600 Hz

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