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单选题
气缸注油量随转速而调节的主要缺点是（）。
A
气缸油注油器传动机构复杂
B
低转速工作时注油量过小
C
低负荷运转时注油量过大
D
低转速运转时注油量不稳定
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单选题Strainers are commonly used in hydraulic systems to （）.A
protect the pump from fine soluble contaminantsB
prevent solid particles from entering the pumpC
prevent solid particles from entering the filterD
protect the directional control valves
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单选题Why is it necessary to warn engine room personnel before activating the fixed CO2 system?（）A
To make them aware there is a fireB
To let them know they should leave the engine roomC
To prevent possible injury from frostbiteD
To make them aware that ventilation will automatically stop
考题
单选题下列有关主管轮机员在加油时不正确的说法是（）A
检查装油管系，正确开关阀门，防止跑冒滴漏B
核实供油方的油品质量和数量C
确定各种油品的装油次序和供油速度D
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考题
单选题How should you signal the crane operator to raise the boom and lower the load?（）.A
Extend arm with the palm down and and hold this position rigidlyB
Place both fists in front of the body with the thumbs pointing outward each otherC
Clasp hands in front of you bodyD
Extend arm with the thumb pointing up, and flex the finger s in and out for as long as the load movement is desired
考题
单选题根据1976年商船最低标准公约规定，船东应对海员按协议服务期间发生的疾病、受伤、死亡负责，其除外情况包括（） Ⅰ．并非在船上工作时的受伤； Ⅱ．海员自身故意； Ⅲ．海员违章； Ⅳ．海员受雇时拒绝进行体检； Ⅴ．签约时已发生但未发现的疾病。A
Ⅰ、ⅢB
Ⅰ、Ⅱ、ⅢC
Ⅰ、Ⅱ、Ⅲ、ⅣD
Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ
考题
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Ⅰ，Ⅱ，ⅣB
Ⅱ～ⅣC
Ⅰ～ⅣD
Ⅰ～Ⅲ
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单选题A vessel casualty must be reported to the MSA in China if it involves（）.A
loss of lifeB
an injury requiring only first aidC
property damageD
loss of equipment which doesn't reduce the vessel's maneuverability
考题
单选题Every（）shall be fitted with a cargo tank cleaning system using crude oil washing.A
existing crude oil tanker of 20000 tons deadweight and underB
new crude oil tanker of 20000 tons deadweight and underC
existing crude oil tanker of 20000 tons deadweight and aboveD
new crude oil tanker of 20000 tons deadweight and above
考题
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Ⅰ，Ⅱ，Ⅲ，ⅣB
Ⅲ，ⅣC
Ⅱ，Ⅲ，ⅣD
Ⅱ，Ⅳ
考题
单选题In each inflatable liferaft，what equipment is provided to make quick，emergency，temporary repairs to large holes in the raft? （）A
No equipment is providedB
Glue and rubber patchesC
Several various-sized sealing clampsD
Self-adhesive rubberized canvas patches
考题
单选题我国《钢质海船入级规范》对锚机规定：锚机链轮上的刹车装置应工作可靠，当自由抛锚速度达（）时，仍能有效刹住正在下滑的锚链。A
5～7.5m/min；B
5～7.5m/s；C
8～9m/s；D
8～9m/min。
考题
单选题Pilot Station，this is Chinese ship Jinsha（）.Over.A
callsB
calledC
callingD
call
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