
【名词&注释】
排气阀(exhaust valve)、第二级(second order)、口头报告、交通事故调查、船用空压机(ship service air compressor)、书面报告(written report)
[单选题]海上求生者在低于℃的海水中可生存的时间不超过_____。
A. 15分钟
B. 30分钟
C. 45分钟
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举一反三:
[单选题]The trend nowadays is to build the frame box as a separate fabricated construction and then, after stress relieving and machining the mating surfaces, to mount it on the _____. This has the advantage of saving weight.
A. seating
B. bed-plate
C. entablature
D. cylinder block
[单选题]Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result from a/an( ).
A. overload on the pump motor
B. low fluid level in the reservoir
C. low fluid viscosity around the shaft seal
D. high oil level in the sump
[单选题]根据《海上交通事故调查处理条例》,发生海上交通事故时,正确的报告程序是___。I、立即以最有效手段向就近海事机构口头报告即扼要报告II、在港区水域内的事故,48h内应当向当地海事机构提交报告书面报告(written report)III、在港区水域外的事故,到达船籍港24h内向当地海事机构提交书面报告(written report)IV、在港区水域外的事故,到我国第一港口48h内向当地海事机构提交书面报告(written report)
A. I+II
B. I+III
C. I+II+III
D. I+IV
[单选题]船用空压机(ship service air compressor)启阀式卸载机构可用强开( )方法卸载。
A. 第一级吸气阀
B. 第二级吸气阀
C. 第一级排气阀
D. 第二级排气阀
[单选题]在墨卡托海图上:()
A. 每一分经度相等
B. 每一分纬度长度不等
C. 恒向线是直线
D. 以上都对
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