Question 153Motor Plants - QMED

The correct answer is A) ferrous materials. A magnetic strainer is primarily used in diesel engine reduction gear oil systems to remove small particles of ferrous (iron-based) materials that may be present in the oil. This is because the magnetic field of the strainer can effectively capture and trap any iron or steel particles that may have worn off from various components within the reduction gear system. The other answer choices are incorrect because babbitt (a soft metal alloy), copper, and acidic materials are not the primary targets of a magnetic strainer, which is designed to remove ferrous contaminants from the oil.