Question 330Steam Plants - 1st Asst/Chief

The correct answer is A) precision bearings. Babbitt metal is a soft, low-friction alloy commonly used for lining the interior of precision bearings, such as those found in engines, gearboxes, and other rotating machinery. The soft, self-lubricating properties of Babbitt make it an ideal material for reducing wear and friction in these critical bearing applications. The other answer choices are incorrect because Babbitt is not typically used for lining salt water piping (B), valve seats (C), or shim stocks (D). Those applications generally require different metal alloys with different properties more suited to their specific uses.