12. 各類型閥中可以作為遠端遙控開啟關閉的為那一型閥？ (A) 減壓閥 (B) 洩壓閥 (C) 調節閥 (D) 快關閥

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

12. 各類型閥中可以作為遠端遙控開啟關閉的為那一型閥？
(A) 減壓閥
(B) 洩壓閥
(C) 調節閥
(D) 快關閥

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