【名词&注释】
管理模式、消化系统(digestive system)、视网膜(retinal)、柴油机(diesel engine)、无线电(radio)、轴功率(shaft power)、消化腺(digestive gland)、消化管(digestive tract)、船舶维修保养体系(the system of maintenance for ships)、喷油泵出油阀
[单选题]The International Oil Pollution Prevention Certificate is valid for a period of
A. one year from the date of issue
B. five years from the date of issue
C. three years from the date of issue
D. four years from the date of issue
查看答案&解析
举一反三：
[单选题]泵的总效率是指( )。
A. 实际流量与理论流量之比
B. 实际扬程与理论扬程之比
C. 有效功率与轴功率之比
D. 传给液体的功率与输入功率之比
[单选题]In a modern three-phase
A. C． synchronous brushes generator, the excitation winding is on the rotor. That means .
B. The winding on the rotor is for inputting excitation current.
C. There are three phase windings on the rotor.
D. The generator has no brushes.
[单选题]CWBT是( )的简称。
A. 船舶维修体系
B. 船舶管理制度
C. 船舶维修管理模式
D. 船舶维修保养体系(the system of maintenance for ships)
[单选题]During PSC inspection related to the ISM Code,_____of the Safety Management System (SMS) should be carried out if clear grounds are established
A. a less favorable inspection
B. a more favorable inspection
C. a less detailed inspection
D. a more detailed inspection
[单选题]STCW规则第VI章为＿。
A. 防火和灭火
B. 无线电体系和人员
C. 可供选择的发证
D. 应急、职业安全和救生职能
[单选题]下列关于喷油泵出油阀的工作特性中错误的是( )。
A. 等容卸载出油阀其卸载客积随柴油机转速而变化
B. 等容卸载出油阀的高压油管剩余压力随柴油机工况而变化
C. 等压卸载出油阀不会使高压油管产生穴蚀.
D. 等压卸载出油阀依靠阀内的卸载阀启闭来控制高压油管内的压力
[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
[单选题]鲨鱼的眼睛视网膜不能辨别颜色，但对反差强烈的物体颜色是：
A. 黑和红
B. 黑和白
C. 黑和绿
[单选题]消化系统由______组成。
A. 食管和胃
B. 小肠和大肠
C. 肝和胆
D. 消化管(digestive tract)和消化腺(digestive gland)
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