What scale of measurement is type of workplace injuries (slip and fall, stress related, etc.) ?

The answer is nominal

The scientist is trying to research type of workplace injuries. It is the type, not the frequency, so the data would not be quantitative, numerical or interval. The data is qualitative so it is either ordinal or nominal. The type of workplace injuries should have no order to differentiate between them, so it won't be called ordinal. Then, the data should be nominal