正确答案: D
0.005
题目:如果某海区每年发生大风浪的概率Pw=0.25,某船每年经过该海区航行的概率Pv=0.1,该船航行不可靠度为F(t)=0.20,则该船在该海域遇险的概率P()为。
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学习资料的答案和解析:
[单选题]测量发现,活塞在气缸中发生倾斜,即活塞位于近上、下止点位置时,活塞在气缸中分别偏向一侧,活塞与气缸左、右方向上的间隙不等,这是由于()原因造成的。
A.导板发生上下方向倾斜
[单选题]关于臂距值L,不正确的说法是()。
测量点距曲柄销中心线越近,所测的L值越大
[单选题]舵杆纵向裂纹应采用()修理。
焊补
[单选题]Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine () ahead and astern.
a brief trial on power
[单选题]In a four-stroke engine the camshaft rotates at ().
half the engine speed
[单选题]Put in the engine turning gear Now examine thoroughly inside the crankcase to () that everything is correct.
make sure
[单选题]The most important factor that causes the wear of the engine parts is ().
friction
[单选题]A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST ().
reduce the engine load