whether the diameter is of rotor or of turbine

English as a Second Language English Vocabulary, Grammar and Idioms
1

I am confused whether the diameter is of rotor or of turbine and whether the 450 RPM, that you informed me, is of rotor or of turbine.

What about the sentence? Is it correct?

Thanks!

2

It isn’t correct. There are a number of errors and I have to guess what you mean, but possibly:
I am confused about whether the given diameter applies to the rotor or the turbine and I also do not know whether the measure of 450 RPM applies to the rotor or the turbine.

3
  1. The given diameter of the rotor is 2 meter.
  2. The given diameter applies to the rotor.
  3. The diameter of the rotor is 2 meter.
  4. The diameter applies to the rotor is 2 meter.

What about the sentences?

4

The given diameter of the rotor is 2 meters,
The given diameter applies to the rotor.
The diameter of the rotor is 2 meters.
The diameter which applies to the rotor is 2 meters - this does not sound natural.

5

What about the following version?

I am confused whether the diameter is of the rotor or of the turbine and whether the 450 RPM, of which you informed me, is of the rotor or of the turbine.

6

I am confused as to whether the 450 rpm refers to the diameter of the rotor or of the turbine.