单选题根据“海船系泊及航行试验通则”规定，新造船舶在航行试验时应对操舵装置进行的试验有（）。 a.不少于30min空跑合试验； b.检测机组自动转换的可靠性； c.主电源失电，能按规定时间转换至应急电源； d.在规定条件下测试主、辅操舵装置操舵时间。Aa+b+dBa+dCb+dDb～d
单选题
根据“海船系泊及航行试验通则”规定，新造船舶在航行试验时应对操舵装置进行的试验有（）。 a.不少于30min空跑合试验； b.检测机组自动转换的可靠性； c.主电源失电，能按规定时间转换至应急电源； d.在规定条件下测试主、辅操舵装置操舵时间。
A
a+b+d
B
a+d
C
b+d
D
b～d
参考解析
解析：
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