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
Downwind for 1 miles，alter to starboard 90 degrees，go down this course for 1 mile；Then alter 90 degrees to starboard and go down this course for 2 miles；Then alter 90 degrees to starboard and go down this course for 2 miles；Keep adding 1 mile ever time you alter to starboard．This operation is（）search pattern
A
Williamson Turn
B
Parallel
C
Sector
D
Expanded
参考答案
参考解析
解析：
暂无解析
更多 “单选题Downwind for 1 miles，alter to starboard 90 degrees，go down this course for 1 mile；Then alter 90 degrees to starboard and go down this course for 2 miles；Then alter 90 degrees to starboard and go down this course for 2 miles；Keep adding 1 mile ever time you alter to starboard．This operation is（）search patternA Williamson TurnB ParallelC SectorD Expanded” 相关考题
考题
单选题You are in charge of a stand-on vessel in a crossing situation.The other vessel is 1.5 miles to port.You believe that risk of collision exists.You should（）.A
take avoiding action immediately upon determining that risk of collision existsB
immediately sound the danger signalC
take avoiding action only after providing the give-way vessel time to take action ,and determining that her action is not appropriateD
hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avert collision
考题
单选题运行10000h后，今测得Sulzer 6S20型船用柴油机某缸气缸套缸颈测量结果为：D1x=200．26mm，D1y=200．50mm，D2x=200．216mm，D2y=200．30mm。气缸套最大内径增量为202mm，则本次气缸内径增量为（）。A
0.25mmB
0.20mmC
0.12mmD
0.24mm
考题
单选题The gear, screw, and vane pumps are all classified as （）.A
variable stroke pumpsB
multistage pumpsC
positive displacement pumpsD
triple-ported pumps
考题
单选题脉冲涡轮增压对废气能量的利用情况是（）。A
只能剩用定尽能，不能直接利用脉冲动能B
只能利用脉冲动能，不能直接利用定压能C
既能剩用全部的定压能，又能利用部分的脉冲动能D
既能利用全部的脉冲动能，又能利用部分的定压能
考题
单选题在AUTOCHIEF C20主机遥控系统中，主机安全单元ESU（）。A
只有开关量输入和输出信号B
只有模拟量输入和输出信号C
有开关量输入信号和模拟量输出信号D
有模拟量输入信号和开关量输出信号
考题
单选题超大型船舶与一般万吨货船比较，下列哪项正确？（）A
淌航中丧失舵效时间超大型船舶早B
旋回时速度下降，超大型船舶小C
旋回时速度下降，瘦削型船舶大D
淌航中丧失舵效时间瘦削型船舶早
考题
单选题由于雷达波水平波束宽度导致的回波变形是指（）。A
雷达扫描中心到回波的张角大于实际船位到物标的张角B
雷达扫描中心到回波的张角小于实际船位到物标的张角C
回波的方位大于物标实际的方位D
回波的方位小于物标实际的方位
考题
单选题引航员引领船舶时，船长应（）。Ⅰ．向引航员介绍本船的情况及操纵特点；Ⅱ．放弃监督引航员操纵船舶的责任；Ⅲ．及时纠正引航员的错误指令；Ⅳ．主动向引航员了解航道、码头、泊位水深以及与安全靠离有关的信息。A
Ⅱ～ⅣB
Ⅰ，Ⅲ，ⅣC
Ⅰ～ⅣD
Ⅰ，Ⅳ
考题
单选题For many years marine centrifuges were designed for （） operation, that is the machines were run for a period during which solids accumulated in the bowlThe machine was stopped when the accumulated solids began to impair its performance.A
purifyingB
batchC
long periodD
temporary
考题
单选题离心泵发生汽蚀现象时，可采取的措施可以是：（）①开大排出阀；②关小吸入阀；③开大旁通阀；④降低泵的转速；⑤降低被输送液体的温度A
④+⑤B
③+④+⑤C
①+②+③+⑤D
①+③+④+⑤
考题
单选题To maintain the down stream pressure within defined limits over a range of flow and despite any changes in supply pressure, （） is fitted.A
a check valveB
a gate valveC
a pressure reducing valveD
a quick closing valve
考题
单选题The scale trap is located between the （）A
king valve and the expansion valveB
solenoid valve and expansion valveC
evaporator and receiverD
compressor and evaporator
考题
单选题在运用STCW规则第A-Ⅷ/1条时，下列各项说明中错误的是（）。A
所制定的防止疲劳的规定应确保不采取过多的和不合理的整段工作时间，特别是第A-Ⅷ/1节规定的最少休息时间不应解释为暗示所有其他时间可用于值班或履行其他职责B
休息时段的次数和长短以及准予的补休与一段时间内防止疲劳无关C
对短航次的船舶，只要作出特殊的安全方面的安排可以有不同的规定D
主管机关应以从海上事故调查结果所获得的信息为基础，对其防止疲劳的规定进行审核
考题
单选题在单元组合式监视报警系统中，不正确的说法是（）。A
每块报警控制电路板都具有报警指示灯B
每块报警控制电路板都能进行独立的功能测试C
每块报警控制电路板都具有消闪按钮D
每块报警控制电路板都能进行报警值设定
考题
单选题To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also（）.A
prevent any lubricant from reachingB
prevent excessive lubrication from reaching the combustion spaceC
Provide metal-to-metal contact to seal the cylinder against blow-byD
assure a positive means of scraping carbon accumulation from the cylinder
考题
多选题用INMARSAT船站发送的遇险报警传送的路径可能是（）A由任一岸站接收，并由其传至RCCB由SES所在洋区的任一岸站接收，并由其传至RCCC由SES指明的SES所在洋区CES接收，并由其传至RCCD由所在洋区的NCS接收，然后由其传至RCCE由RCC直接接收SES所发遇险报警F由所选岸台接收，并由其传至RCC
热门标签
最新试卷