首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Merchant and passenger ships are generally required to have a life preserver for every person aboard and, in many cases, a certa
Merchant and passenger ships are generally required to have a life preserver for every person aboard and, in many cases, a certa
admin
2014-06-25
47
问题
Merchant and passenger ships are generally required to have a life preserver for every person aboard and, in many cases, a certain percentage of smaller sizes for children. According to United States Coast Guard requirements, life preservers must be simple in design, reversible, capable of being quickly adjusted to fit the uninitiated individual, and must be so designed as to support the wearer in the water in an upright or slightly backward position.
Sufficient buoyancy to support the wearer should be retained by the life preserver after 48 hour in the water, and it should be reliable even after long period of storage. Thus it should be made of materials resistant to sunlight, gasoline and oils, and it should not be easily set on fire.
The position in which the life preserver will support a person who jumps or falls into the water is most important, as its tendency to turn the wearer in the water from a face-down position to an upright or slightly backward position, with his face clear of the water, even when the wearer is exhausted or unconscious.
The method of adjustment to the body should be simple, and self-evident to uninitiated persons even in the dark under the confused conditions which follow a disaster. Thus, the life preserver should be reversible, so that it is nearly impossible to set it on wrong. Catches, straps, and ties should be kept to a minimum. In addition, the life preserver must be adjustable to the wide variety of shapes and sizes of wearers, since this greatly affects the position of floating and the self-righting qualities. A suitable life preserver should also be comfortable to wear at all times, in and out of the water, not so heavy as to encourage to take it off on shipboard while the ship in danger, nor so burdensome that it hinders a person in the water while trying to swim.
United States Coast Guard does NOT require the life preserver to the made______.
选项
A、with as few strings as possible
B、capable of being worn on both sides
C、according to each wearer’s size
D、comfortable and light to wear
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/aDUC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Itissaidthattheagreement______betweenthetwocompanieslastmonthwillbecomeeffectivefromMay1st.
Thisstorybeganabout10yearsage.Iwascomingoutofaverybadmarriage.Forsevenlongyearsmyhusbandspenthiseverywa
Thegovernmenthaspromisedtodo______liesinitspowertoeasethehardshipsofthe.homeless.
made“thewind’seyes”widerandcoveredthewindowswithcanvas
Haveyou【56】askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【57】languages,mathematics,history,sci
Youmusthavesaidsomethingto______her,asshewascryingaftertalkingwithyou.
IntheUnitedStates,elementaryandmiddleschoolsareadvisedtogivestudentstwoandahalfhoursofphysicalactivityawee
Theactivitywasdelayed,______wasexactly______wewanted.
Theclothesapersonwearsmayexpresshis______orsocialposition.
DuringtheSecondWorldWarHitler______manycountries.
随机试题
患者男。上腹不适半年,夜间痛及背部痛多见,药物治疗效果不明显。最可能的原因是
试计算图所示零件的展开尺寸。
(2009年4月)(2007年4月)职能战略的特点包括:______、______或______、______。
“压力理论之父”是指
A.脐满反肿者B.腰肿无纹理C.阴肿不起D.掌肿无纹理E.面肿苍黑属于水肿心败不治的是
在政府采购招标投标活动中,投诉人提起的投诉应当符合的条件有()。
A股份有限公司(以下简称A公司)为增值税一般纳税人,适用的增值税税率为17%。A公司以人民币作为记账本位币,外币业务采用业务发生时的市场汇率折算,按季计算汇兑损益。每半年编制一次财务报表。2013年1月1日有关外币账户期初余额如下:长期
制定营销策略要考虑的最重要的因素和出发点是()。[2005年真题]
Howcouldwords,confinedastheyindividuallyaretocertain(i)____meaningsspecifiedinadictionary,eventuallycome,when
GesturesI.Universalusageofgesturesincommunication1)GesturesarewidelyusedespeciallyinArabcountries.2)Gesturesh
最新回复
(
0
)