找考题网-背景图
单项选择题

船舶修理后,主推进装置倒车功率应满足船规的规定,即应能以()额定转速倒车自由航行至少(),且瞬变状态下发出的倒车功率能使船舶制动。

A.80%/30min
B.70%/30min
C.80%/15min
D.70%/15min

热门试题