38. 下列何者為可變螺距推進器之優點？ (A) 改變葉片之方向即可得逆向推力 (B) 構造複雜 (C) 翼與轂部之連接處之水密困難 (D) 停車時需停止主機運轉

36. Which one of instructions for safety precautions described in the working manual is incorrect? (A) When changing cooling water, lubricating oil or filter immediately after the engine has stopped, proceed to work only after the temperature has lowered. (B) During running and immediately after the engine has stopped, the whole engine is heated. Take care not to get burnt. (C) Can touch a high temperature region such as the exhaust pipe or pressure indicator cock of engine with bare hands. (D) Do not touch the heater and heated sections of fuel oil system with bare hands.

38. 下列何者為可變螺距推進器之優點？ (A) 改變葉片之方向即可得逆向推力 (B) 構造複雜 (C) 翼與轂部之連接處之水密困難 (D) 停車時需停止主機運轉

其他試題

38. 下列何者為可變螺距推進器之優點？
(A) 改變葉片之方向即可得逆向推力
(B) 構造複雜
(C) 翼與轂部之連接處之水密困難
(D) 停車時需停止主機運轉