3. The layout of drain systems can often be improved by the use of automatic pumps.
Condensate can be drained by gravity more readily to local receivers and then pumped
back to the engine room as required. What type of operated traps is above description?
(A) Mechanical trap
(B) Thermostatic trap
(C) Thermodynamic trap
(D) Vacuum trap
寫作批改
VIP與詳解卡管理
私人筆記( 2 )
