40. 下列何者為大型船舶空壓機常用之氣閥？ (A) 環片閥 (B) 球面碟狀閥 (C) 簧片閥 (D) 網狀閥

8. One kind of tools which are in common use for daily maintenance works on the ship is a simple tool designed to insert and tighten, or to loosen and remove, screws. The tool comprises an approximately cylindrical handle to be held by the worker, and an axial shaft fixed to the handle, the tip of which is shaped to fit a particular type of screw. The handle and shaft allow the tool to apply torque. What tool is above description? (A) Hammer (B) Screwdriver (C) Pliers (D) Drill

40. 下列何者為大型船舶空壓機常用之氣閥？
(A) 環片閥
(B) 球面碟狀閥
(C) 簧片閥
(D) 網狀閥

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