The（） is fitted in pair one is the main valve, the other the auxiliary or standby. -题库考试答案搜索网

The（） is fitted in pair one is the main valve, the other the auxiliary or standby.

单选题

2022-01-13 23:24

A、main stem stop valve
B、auxiliary steam stop valve
C、feed check or control valve
D、blow down valve

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正确答案

C

试题解析

标签：船舶电气与船舶安全

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