网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
单选题
船机磨损故障期的特点是()。
A
故障率低
B
故障率随时间延长而增加
C
时间较长
D
故障率随时间延长而降低
参考答案
参考解析
解析:
暂无解析
更多 “单选题船机磨损故障期的特点是()。A 故障率低B 故障率随时间延长而增加C 时间较长D 故障率随时间延长而降低” 相关考题
考题
单选题对于由两台交流同步发电机构成的船舶电站,下列关于其原动机调速特性的说法正确的是()。A
均为无差特性,是最为理想的B
一台为有差特性,一台为无差特性,并联后一定可以稳定运行C
均为相同的调差率的有差特性,是最为理想的D
均为相同的调差率的有差特性,并联后不能稳定运行
考题
单选题Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?()A
Hydraulic pumpsB
ValveC
Hydraulic cylindersD
Hydraulic motors
考题
单选题扳动制冷装置设有电加热延时元件的油压差控制器的试验扳手,以下说法中正确的是:().A
压缩机油压下降、立即停车B
压缩机油压下降、延时停车C
压缩机油压不下降、立即停车D
压缩机油压不下降、延时停车
考题
单选题The external flotation bladder on an immersion suit should be inflated().A
before you enter the waterB
after you enter the waterC
after one hour in the waterD
after you notice that your suit is losing buoyancy
考题
单选题In order to minimize the effects of a tender vessel,when carrying a cargo of lumber,you should().A
maximize your deck loadB
distribute lumber so that those stowing most compactly per unit of weight are in the upper holdsC
place the heaviest woods in the lower holdsD
keep the vessel's frame spaces free from lumber
考题
单选题在GravinerMark-5型曲柄箱油雾浓度监视报警器的测量系统中,清洗电磁阀通电,不仅清洗测量系统,还要检测一次(),并与()相比较,若相差较小用()作为相对()。A
新零点;原零点;新零点;零点B
新零点;原零点;原零点;零点C
新报警点;原报警点;新报警点;报警点D
新报警点;原报警点;原报警点;报警点
考题
单选题The temperature of the fuel oil received during bunkering operation is critical in determining the ()A
expansion space to leave in a tankB
flash point at which the fuel will burnC
temperature to which the fuel must be heatedD
rate at which the fuel can be pumped during transfer operations
考题
单选题() power is the power developed within the cylinder and can be measured by an engine indicator.A
The shaftB
The mechanicalC
The electricD
The indicated
热门标签
最新试卷