Under EMERGENCY operating conditions, the proper valve positions for controlling feed water to the boiler should be the __________. |
A) auxiliary stop valve fully open and the auxiliary stop-check valve used to regulate the amount of flow |
B) auxiliary stop and stop-check valves fully open and the feed pump speed used to regulate the amount of flow |
C) auxiliary stop-check valve fully open and the auxiliary stop valve regulated by the feed water regulator |
D) auxiliary stop-check valve fully open and the auxiliary stop valve used to regulate the amount of flow |