6.下列對筒式淨油機(Cylindrical bowl centrifuge)和圓盤式淨油機(Disk bowl centrifuge)的比較,何者敘述最正確?(A)筒式淨油機旋轉筒徑大,旋轉速度大(
11.What is the fluid employed as the heat absorber or cooling agent in any refrigerating process?(A)
12.Which is not the potential source of pollution for a navigating ship?(A)Cargo-oil piping system(B
13.Which device in the jacket water cooling system is used to maintain a static head on the suctions
17.舵機系統在舵機艙內,其泵油系統給油管上之何種裝置直接連接在液壓缸上,經人工操作此閥可隔離舵機原有的主管路並取而代之,成為一獨立給油系統,以維持舵機之功能?(A)閘閥(B)球閥(C)三路閥(D)活
18.The reciprocating motion of the piston is converted to the rotary motion that drives the .(A)cams
21.The design of the waste-heat boiler heat transfer surface is largely a problem of convective heat
22.Which section of the shafting system is used to secure the propeller?(A)Thrust shaft(B)Intermedia
23.Which event in those seawater systems is often prevented by continuously injecting chemicalpoison