正确答案: B

具备维修GMDSS设备的能力

题目：在GMDSS规则中，下列_____不是通用操作员的能力要求。

解析：B

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学习资料的答案和解析：

[单选题]人发生死亡的体温是______以下。

24℃~26℃

[单选题]今测得某船轴系的某对法兰偏中值为δ≠0、φ=0，该相邻轴轴心线呈( )状态。

相交且两法兰中心未对准

[单选题]为了减少摩擦，降低磨损，在摩擦副摩擦表面间加入某种介质的措施称为( )。

润滑

[单选题]《船员条例》明确了船员除享有国家法定的节假日外，还享有在船舶上每工作2个月不少于______日的年休假。

5

[单选题]第二组Under normal operation, some lubrication oil mist may be discharged from the air compressor to the air start system. This oil may be from excess compressor cylinder lubrication, from faulty oil scraper rings, or may even be suspended oil vapor contaminating the engine room atmosphere and drawn in at the compressor suction. Oil discharge is kept to a minimum by draining the after cooler, air receiver and starting system. If small quantities of lubrication oil do get passed into the starting air system, they will deposit as thin moist film over internal pipe surfaces but are not readily combustible. If a cylinder non-return valve leak while the engine is in operation, some hot gas, possibly with unburned fuel and cylinder lubrication oil, may be blown through the valve to the adjacent air manifold. With further heating from the leaky valve, this, together with the already deposited oil film, will carbonize and form. incandescent carbon. If starting air is applied to the system while still hot, the high pressure air coming into contact with the burning carbon may cause an explosion. Such an explosion will cause a flame to pass back through the air start pipe system, evaporating the deposited oil film and igniting it in the presence of air. Very high velocities and shockwaves are generated which may rupture pipes and fittings.

the danger of explosion in the starting air system

[单选题]指挥直升机从艇、筏上吊升人员时，表示“勿吊升”的信号：

手臂伸开放平手指紧握，拇指向下