38. For the constant-speed engines, the fuel racks are positioned by a ________. (A) separator (B) g
38. 船舶之推進軸系統（Propulsion Shafting System）振動的臨界轉數，下列何者敘述為正確 ？ (A) 隨軸承間距減小而增加 (B) 隨軸承間距減小而降低 (C) 隨軸承剛性減
33. Which is not one of instructions for safety precautions described in the working manual? (A) Kee
32. There are three essential elements involved in producing fire, which one is not involved? (A) He
31. One kind of tools which are in common use for daily maintenance works on the ship can be used to
30. The piping parts of lubrication oil system are banded with one of colors coating. Which color is