試題詳解

7. An adjustment screw permits the valve to be set up for condensate release at a specific temperature. Clearly in an application where the pressure varies there could be a board band of operation in which the trap would be ether waterlogged or passing steam. What type of operated traps is above description?
(A) Thermodynamic trap
(B) Mechanical trap
(C) Thermostatic trap
(D) Vacuum trap