【名词&注释】
蒸发量(evaporation)、乳化剂(emulsifier)、排气量(displacement)、驾驶员(driver)、引航员(pilot)、矿物油(mineral oil)、混合液(mixture)、西海岸(west coast)、驾驶台(driving platform)、肥皂液
[单选题]矿物油可选用混合液(mixture)来清洗。①乳化剂;②表面活性剂;③合成肥皂液
A. ①
B. ②③
C. ①②③
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举一反三：
[单选题]Which of the following is NOT mentioned in this passage?
A. There may be oil vapor in the engine room
B. Pipes and fittings may be damaged if explosion takes place
C. The cooler should be drained
D. Bursting caps must be fitted
[单选题]废气锅炉如水位不变，其蒸发量主要取决于主机的()。
A. 排气温度和排气量
B. 排气速度和排气温度
C. 排气压力和排气量
D. 排气压力和排气温度
[单选题]可疑脊柱外伤病员，正确搬运的是()
A. 一人抬头一人抬脚
B. 搂抱
C. 三人以上平托放于木板上搬运
[单选题]舵工操舵时，当船长、值班驾驶员和引航员同时在驾驶台(driving platform)时，应以()的舵令为准。
A. 船长
B. 值班驾驶员
C. 引航员
D. 以上都不对
[单选题]"ERIKA"油船在法国西海岸(west coast)发生重大油污事故后，IMO迅速果断地对MARPOL73/78附则Ⅰ第13G条再次作出修正;并引入______。
A. IBC
B. CAS
C. BCH
D. ISM
[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.
A. Alternatively, if excessive oil has entered the air start system, a mixture of air and oil droplets may be discharged through the open cylinder non-return valve during starting. This spray may ignite due to high temperatures in the cylinder, causing a flame through the still open valve to the air manifold.
B. To prevent an explosion, air start valves must be correctly maintained and lubricated to ensure correct timing and free movement with positive closing. Oil in the system must be kept to a minimum, pipe lines must be drained and cleaned internally when necessary and oil discharge from air compressors must be kept to a minimum by good maintenance.
C. The passage is mainly about
D. crankcase explosion
E. scavenge box fire
F. starting air pipe
G. the danger of explosion in the starting air system
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