12. 船舶推進軸系統中，就下圖而言(1)應為下列何者？ (A) 推力環 (B) 推力塊 (C) 固定銷 (D) 軸承座

6. Before the initial start of the engine after its installation, perform correct inspection and operational preparation and make sure there is no abnormality. Which one is incorrect? (A) Close the lubricating oil priming pump and the pressure indicator cocks of all the cylinders. (B) While turning the flywheel, make sure the lubricating oil is dropping from each part of the valve rocker arm shafts, piston pins, main bearings and swing arms. (C) Bleed the air from the lubricating oil strainer. (D) Manually lubricate the governor linkage, and make sure it moves smoothly.

12. 船舶推進軸系統中，就下圖而言(1)應為下列何者？
(A) 推力環
(B) 推力塊
(C) 固定銷
(D) 軸承座

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