单选题当救助船驶向SART约（）时，雷达荧光屏上SART信号呈同芯圆.A400米B600米C1海里D5海里
单选题
当救助船驶向SART约（）时，雷达荧光屏上SART信号呈同芯圆.
A
400米
B
600米
C
1海里
D
5海里
参考解析
解析：
暂无解析
相关考题：
单选题A term applied to the bottom shell plating in a double-bottom ship is（）.Abottom floorBouter bottomCshear platingDtank top
单选题Official proof of a Chinese vessel’s nationality is contained in the（）.ACertificate of InspectionBOfficial LogCCertificate of DocumentationDShipping Articles
单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）AThe safety valve escape piping should be disconnected from the valve body and a blank insertedBThe boiler vent valves should be openedCAll hand-hole/manhole covers should be tightened up as much as possible to preclude any leaksDAll of the above
单选题MAN BW MC系列柴油机Alpha注油器系统，其注油器控制单元控制润滑油的三个主要电器部件是指（）。 Ⅰ．主控单元； Ⅱ．备用控制单元； Ⅲ．开关板单元； Ⅳ．注油单元。AⅠ+Ⅱ+ⅣBⅠ+Ⅱ+ⅢCⅠ+Ⅲ+ⅣDⅡ+Ⅲ+Ⅳ
单选题Chain suspension ladders on a ship must be replaced by fixed ladders if the required chain suspension ladder（）.Ahas been sent in for repairBcannot be supported against a vertical flat surfaceCdoes not extend to the water when the ship lists 15 degreesDis not equipped with vertical guard rails on either side
单选题According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and （）.Athe pulse-phase systemBthe pulse Doppler systemCthe pulse systemDthe pulse interval
单选题Releasing oil from the sea anchor of a lifeboat may（）.Akeep the propeller from being fouledBincrease propeller speedChelp calm the waves in the vicinity of the craftDincrease the holding power of the sea anchor
单选题The record of tests and inspection of fire fighting equipment on board a ship must include（）.Athe name of the person conducting the testBthe weight of the chargeCrecommendations for the next testDAll of the above
单选题在NAKAKITA型燃油黏度控制系统中，把调节器上的微分阀全关，当柴油机负荷增大时，其调节器上的黑色指针动作过程为（）。A绕红色指针等幅振荡B振荡多次，稳态时读数高于给定值C振荡多次，稳态时读数低于给定值D无波动地达到稳态，黑、红指针重合
单选题The distance a vessel moves parallel to the original course from the point where the rudder is put over to any point on the turning circle is called the（）.AadvanceBdrift angleCpivoting pointDtransfer
单选题对零件表面进行（）处理，可有效地提高零件表面的疲劳强度。A热B化学热C冷D淬火