Which of the following components provides
题型:单项选择题
问题:
Which of the following components provides a direct source of seawater for the fire main system?()
A.Rose box
B.Sea chest or spool piece
C.Sluice valve
D.Fire pump stuffing box
Which of the following components provides a direct source of seawater for the fire main system?()
A.Rose box
B.Sea chest or spool piece
C.Sluice valve
D.Fire pump stuffing box