单选题以备到港后的安全检查，轮机部必须将（）维护保养好。 Ⅰ、机舱应急设备 Ⅱ、消防设备 Ⅲ、防污染设备AⅠ+ⅡBⅠ+ⅢCⅡ+ⅢDⅠ+Ⅱ+Ⅲ
单选题
以备到港后的安全检查，轮机部必须将（）维护保养好。 Ⅰ、机舱应急设备 Ⅱ、消防设备 Ⅲ、防污染设备
A
Ⅰ+Ⅱ
B
Ⅰ+Ⅲ
C
Ⅱ+Ⅲ
D
Ⅰ+Ⅱ+Ⅲ
参考解析
解析：
暂无解析
相关考题：
单选题The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by（）Agovernor flyweight action on a pilot valve which controls fuel injectionBgovernor flyweight motion acting on fuel controls through suitable linkageCpositioning a butterfly valve in the fuel delivery system positioningDa servomotor piston attached to the fuel controls
单选题根据《避碰规则》2001年修正案的规定，下列说法不正确的是：（） Ⅰ、长度小于50米的船舶可以不鸣放能见度不良时搁浅船的声号； Ⅱ、长度小于50米的船舶如不鸣放能见度不良时搁浅船的声号，则应鸣放其他有效的声号，每次间隔不超过2分钟； Ⅲ、长度小于50米的船舶如不鸣放能见度不良时搁浅船的声号，则应鸣放其他有效的声号，每次间隔不超过1分钟；AⅠ、Ⅱ、ⅢBⅡ、ⅢCⅠ、ⅡDⅢ
单选题根据我国《国际航行船舶试行电讯卫生检疫规定》，下列有关船舶卫生证书的提法中，（）正确。A我国的船舶卫生证书收卫生检疫机关签发B卫生证书的有效期2年C我国的卫生证书适用于我国港口并与其他外国港口互相通用DABC都正确
单选题Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?（）ATo test the starting systemBTo remove air bubbles from the jacket waterCTo ensure that the lube oil system delivers pressureDTo ensure foreign material (water etc) is not present in the cylinders
单选题关于DC C20/K-CHIEF500监视与报警系统的报警延时功能，错误的说法是（）。A对于同一通道的超高报警和超低报警具有相同的延时B对于同一通道的高报警和低报警具有相同的延时C对于同一通道的超高报警和超低报警具有不同的延时D对于同一通道的超高报警和高报警可以采用不同的延时
单选题Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?（）AIncreased viscosity of the product needs higher loading pressure, which increases the chances of a spillBAir pockets may cause the fuel to bubble out of the ullage holeCThe temperature rise of the fuel will cause an overflowDFueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened
单选题为了保证电刷镀镀层与零件表面的结合强度，在刷镀前零件表面经过（）等处理。Ⅰ.预热；Ⅱ.清洁；Ⅲ.电净；Ⅳ.活化；Ⅴ.镀打底层。AⅠ＋Ⅱ＋Ⅲ＋ⅤBⅢ＋Ⅳ＋ⅤCⅡ＋Ⅲ＋Ⅳ＋ⅤDⅠ＋Ⅱ＋Ⅳ＋Ⅴ
单选题Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.Aapproved oily-water separating equipmentBa fixed or portable containment system at the shore connectionCa spare pump in case the main pump is inoperativeDat least one outlet accessible from the weather deck
单选题For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the（）.Abowl peripheryBbowl centerCupper surfaceDlower surface
单选题The direction of prevailing winds in the Northern hemisphere is caused by the（）.AMagnetic field at the North PoleBGulf StreamCEarth's rotationDArctic cold fronts
单选题Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）AThermal expansion valve frozen openBSuction gas heat exchanger bypassedCCondenser clogged or fouledDHigh pressure cutout switch inoperative
单选题A power-driven vessel underway shall keep out of the way of（）.Aa vessel restricted in her ability to maneuverBa vessel under commandCa passenger shipDa seaplane on the water
单选题英国劳氏船级社、法国船级社、美国船舶局、挪威船级社的简称分别为（）。ALR、ABS、DNV、GLBLR、BV、ABS、GLCLR、BV、ABS、DNVDLR、BV、DNV、GL