49 考量經濟、安全及適合海上情況,下列有關船用冷媒特性之敘述何者正確?(A)冷媒之潛熱愈小愈好 (B)冷媒壓縮液化時之壓力越高愈好 (C)冷媒不需顧慮是否與金屬起化學作用 (D)冷媒壓縮液化後之冷卻
4. ____________is the gas exchange process in which the charge air passes straight upthrough the len
6. What following set of pumps is positive displacement type?(A) Rotary pump and Reciprocating pump(
7. ___________ lock the door before you leave the spare parts room.(A) Remember(B) Remembering(C) To
8. Which equipment is needed to recycle the lubricating oil in refrigeration system?(A) Expansion va
9. It is obviously impossible to regulate the decreasing pressure by a single cock orscrew-down valv