Engine: General Subjects

1. A The monitor works on the absorption/scattering principle where the greater the oil content, the less the amount of visible light detected by the sampling photoelectric cell as compared to the reference photoelectric cell.
2. B The monitor works on the fluorescence principle where the greater the oil content, the less the amount of ultraviolet light detected by the sampling photoelectric cell as compared to the reference photoelectric cell.
3. C The monitor works on the fluorescence principle where the greater the oil content, the greater the amount of ultraviolet light detected by the sampling photoelectric cell as compared to the reference photoelectric cell.
4. D The monitor works on the absorption/scattering principle where the greater the oil content, the greater the amount of visible light detected by the sampling photoelectric cell as compared to the reference photoelectric cell.

Tip: press A-D to answer