25.有關離心式泵（Centrifugal pump）當中機械軸封（Mechanical seal）的敘述，下列何者正確？(A)泵在運轉當中，軸封處洩漏相當程度的水量是正常現象(B)靜止環的密封圈一般
26.下列有關安全閥的敘述，那一項是正確的？(A)安全閥噴出壓力必須設定在常用壓力(B)全量式安全閥可將超壓部分的蒸汽在短時間內全部排出(C)所有安全閥都利用彈簧來設定噴出壓力(D)噴射式安全閥無調整
32.In a steam turbine engine, the is the energy required to spin the turbine backwards in theatmosph
33.Which component of diesel engine is inserted in a cylinder block and enclosed at the top by acyli
34.A large fraction of the heat input to an internal-combustion engine is wasted in the . (A)exhaust
35.What are the speeds of the rotors that shall be carefully calculated in order to avoid theresonan
36.To achieve the processes required of the Brayton cycle, four basic components must beincluded, na