【名词&注释】
安全阀(safety valve)、障碍物(obstacle)、基本要求(basic requirements)、主要内容(main contents)、危险品运输(hazardous materials transportation)、亚共析钢(hypoeutectoid steel)、适用于(suitable for)
[单选题]亚共析钢(hypoeutectoid steel)的室温平衡组织是( )。
A. F
B. P
C. F+P
D. P+Fe3C
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举一反三：
[单选题]SOLAS公约第Ⅸ章主要内容是关于______。
A. 危险品运输
B. 防火、探火、灭火
C. 谷物运输
D. 船舶安全营运管理
[单选题]Which of the following statements concerning the lubrication of diesel propulsionengines used in vessels over 300 gross tons is most accurate? ( )
A. Lubrication systems using engine driven lube oil pumps do not require any additionalindependent arrangement when such arrangements have been proven reliable.
B. The use of engine driven pre-lube pumps is permitted on vessels with propulsionsystems developing less than 500 shaft horsepower.
C. When forced lubrication is used for propulsion engines , one independently drivenstandby pumps is to be provided in addition to the necessary pumps for normaloperation.
D. Lubrication systems where two oil coolers are fitted require a minimum of twotemperature control devices which may be actuated by similar sensors.
[单选题]Allowances may be made for the expansion and contraction in piping by the use of expansion joints or ().
A. Unions
B. Retractable flanges
C. Union bulkhead fittings
D. Bends or loops in the line
[单选题]大管轮负责对＿进行定期检查试验。①起重设备；②安全阀；③机舱灭火设备；④应急舱底阀；⑤机舱水密门；⑤燃油速闭阀。
A. ①②③
B. ①②③④
C. ①②③④⑤
D. ①②③④⑤⑥
[单选题]包扎伤口的基本要求______。
A. 固定要可靠
B. 松紧要适度
C. 以上都对
D. 以上都不对
[单选题]施放漂浮的橙黄色烟雾信号，应从（）
A. 下风施放
B. 艇尾施放
C. 上风施放
[单选题]“过弯规则”（№9条6款）适用于(suitable for)________。
A. 狭水道或航道的弯头
B. 被居间障碍物遮蔽他船的狭水道或航道的弯头或地段
C. 被居间障碍物遮蔽他船的狭水道或航道的地段
D. 狭水道或航道的弯头或通航密度较大的地段
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