Hot rolled sheets have ______ value of permeability

zero
low
high
none of the above

The correct answer is: B. low

Hot rolled sheets have a low value of permeability. This is because the hot rolling process causes the grains of the metal to become elongated and aligned in the direction of rolling. This alignment makes it more difficult for magnetic fields to pass through the metal, resulting in a lower permeability.

The other options are incorrect because:

  • Option A is incorrect because hot rolled sheets do have a permeability, even though it is low.
  • Option C is incorrect because hot rolled sheets do not have a high permeability.
  • Option D is incorrect because hot rolled sheets do have a value of permeability, even though it is low.

I hope this helps! Let me know if you have any other questions.

Exit mobile version