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单选题
舭肘板的（），且其厚度与实肋板相同。
A
宽度大于高度
B
高度大于宽度
C
高度等于宽度
D
无具体要求
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更多 “单选题舭肘板的（），且其厚度与实肋板相同。A 宽度大于高度B 高度大于宽度C 高度等于宽度D 无具体要求” 相关考题
考题
单选题船舶擦底后的应急措施为（）。 Ⅰ、主机降速运行； Ⅱ、使用机动操车； Ⅲ、换高位海底阀； Ⅳ、进行检查； Ⅴ、启动大排量水泵； Ⅵ、清洗海水滤器。A
Ⅰ+Ⅱ+Ⅲ+ⅣB
Ⅰ+Ⅱ+Ⅳ+ⅤC
Ⅰ+Ⅱ+Ⅲ+ⅥD
以上全对
考题
单选题关于三位四通阀机能图说法正确的是（）。A
所谓K型，P型，和Y性换向阀，实际是同一种阀，只是四根管子连接不同而已，B
处于中位时，对于P型和Y型，油泵处于卸荷状态C
处于中位时，与P型阀相连通往执行机构的两根油管，一起接通油箱.D
处于中位时，与K型阀相连的执行机构两侧压力相等，并为最大值.
考题
单选题一艘“失去控制的船舶”在航处于被拖带时应：（）A
显示两盏环照红灯、桅灯、舷灯与尾灯B
显示两盏环照红灯，不对水移动时，关闭桅舷尾灯C
应显示舷灯与尾灯D
对水移动时应显示舷灯与尾灯，不对水移动时关闭
考题
单选题If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.A
increaseB
decreaseC
stopD
remain constant
考题
单选题As oil pipe line connections were broken,（）quantity of oil was caused to spill onto the wharf and into the dock water.A
a not knowingB
an unknowingC
an unknownD
a not known
考题
单选题On all vessels equipped with refrigeration units of over 20 cubic foot capacity, （）.A
a gas mask suitable for protection against each refrigerant used, or a self contained breathing apparatus must be providedB
it is the sole responsibility of the chief engineer to ascertain that all members of the engineering department are familiar with the use of gas masks or breathing apparatusC
spare charges shall be carried for at least 50% of each size and variety of gas masks and/or self contained breathing apparatusD
all of the above
考题
单选题Reducing the clearance between a valve stem and rocker arm will result in the valve （）A
having a shorter duration of openingB
having a longer duration of openingC
closing soonerD
opening later
考题
单选题In the Northern Hemisphere，your vessel is believed to be in the direct path of a hurricane，and plenty of sea room is available. The best course of action is to bring the wind on the（）.A
starboard bow，note the course，and head in that directionB
starboard quarter，note the course，and head in that directionC
port quarter，note the course，and head in that directionD
port bow，note the course，and head in that direction
考题
单选题Which of following functions is not one of the functions of air conditioner?（）A
refreshing the airB
making person upsetC
adjusting the air humidityD
adjusting the air temperature
考题
单选题为了使主机选型从一开始就能尽量符合实际情况，人们越来越重视首先利用（），为选定最佳方案，还必须再经过（）。A
详细资料进行精确计算/全面比较B
统计资料进行初步计算/详细计算，全面分析、比较C
参考资料进行估算/全面分析D
参考资料进行估算/详细分析、比较
考题
单选题It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.A
for my vessel crossing safelyB
my vessel is to cross safelyC
for my vessel to cross safelyD
for my vessel's crossing safely
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