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发布时间:2024-05-18 07:26:28

[不定项选择题]根据下面资料,回答问题潞安某矿煤矿储运处发生一起重大触电伤亡责任事故,6人触电,其中3人死亡,3人经抢救脱险。当天上午,储运处煤矿10人准备上煤但是10m长的皮带运输机所处位置不利上煤,他们在组长冯某的指挥下将该机由西北向东移动。稍停后,感觉还不合适,仍需向东调整。当再次调整时,因设备上操作电源箱里三相电源的中相发生单相接地,致使设备外壳带电,导致这起事故发生。事后分析,皮带输送机额定电压为380V,应该用四芯电缆。而安装该机时,却使用三芯电缆。电源线在操作箱(铁制)的入口处简单地用麻绳缠绕,并且很松动。操作箱内原为三个15A螺旋保险,后因多次更换保险,除后边一相仍为螺旋保险外,左边.中间二相用保险丝上下缠绕勾连。中间相保险座应用两个螺丝固定牢,实际只有一个,未固定牢致使在移动皮带机过程中,电源线松动,牵动了操作箱内螺旋保险底座向左滑动,造成了中间一相电源线头与保险丝和操作箱铁底板接触,使整个设备带电。这些工作人员为临时工,只经私人介绍,仓库就同意到煤矿储运处干活,没有按规定签订用工合同。 漏电保护器是防止直接接触电击和间接接触电击的重要措施,以下应该安装漏电保护器的是()。
A.所有移动式电气设备和手持电动工具
B.安装在潮湿或强腐蚀场所的电气设备
C.临时性电气设备
D.触电危险性较大的设备插座

更多"[不定项选择题]根据下面资料,回答问题潞安某矿煤矿储运处发生一起重大触"的相关试题:

[不定项选择题]潞安某矿煤矿储运处发生一起重大触电伤亡责任事故,6人触电,其中3人死亡,3人经抢救脱险。当天上午,储运处煤矿10人准备上煤但是10 m长的皮带运输机所处位置不利上煤,他们在组长冯某的指挥下将该机由西北向东移动。稍停后,感觉还不合适,仍需向东调整。当再次调整时,因设备上操作电源箱里三相电源的中相发生单相接地,致使设备外壳带电,导致这起事故发生。 事后分析,皮带输送机额定电压为380 V,应该用四芯电缆。而安装该机时,却使用三芯电缆。电源线在操作箱(铁制)的入口处简单地用麻绳缠绕,并且很松动。操作箱内原为三个15 A螺旋保险,后因多次更换保险,除后边一相仍为螺旋保险外,左边、中间二相用保险丝上下缠绕勾连。中间相保险座应用两个螺丝固定牢,实际只有一个,未固定牢致使在移动皮带机过程中,电源线松动,牵动了操作箱内螺旋保险底座向左滑动,造成了中间一相电源线头与保险丝和操作箱铁底板接触,使整个设备带电。 这些工作人员为临时工,只经私人介绍,仓库就同意到煤矿储运处干活,没有按规定签订用工合同。 按照人体触及带电体的方式和电流通过人体的途径,电击可分为( )。
A.单相电击
B.两相电击
C.跨步电压电击
D.直接电击
[不定项选择题]根据下面资料,回答问题潞安某矿煤矿储运处发生一起重大触电伤亡责任事故,6人触电,其中3人死亡,3人经抢救脱险。当天上午,储运处煤矿10人准备上煤但是10m长的皮带运输机所处位置不利上煤,他们在组长冯某的指挥下将该机由西北向东移动。稍停后,感觉还不合适,仍需向东调整。当再次调整时,因设备上操作电源箱里三相电源的中相发生单相接地,致使设备外壳带电,导致这起事故发生。事后分析,皮带输送机额定电压为380V,应该用四芯电缆。而安装该机时,却使用三芯电缆。电源线在操作箱(铁制)的入口处简单地用麻绳缠绕,并且很松动。操作箱内原为三个15A螺旋保险,后因多次更换保险,除后边一相仍为螺旋保险外,左边.中间二相用保险丝上下缠绕勾连。中间相保险座应用两个螺丝固定牢,实际只有一个,未固定牢致使在移动皮带机过程中,电源线松动,牵动了操作箱内螺旋保险底座向左滑动,造成了中间一相电源线头与保险丝和操作箱铁底板接触,使整个设备带电。这些工作人员为临时工,只经私人介绍,仓库就同意到煤矿储运处干活,没有按规定签订用工合同。 属于基本安全用具的是()。
A.绝缘手套
B.绝缘靴
C.绝缘杆
D.绝缘夹钳
[不定项选择题]造成医疗责任事故,情节严重的
A.责令暂停6个月以上1年以下执业活动
B.吊销其执业证书
C.追究刑事责任
D.罚款
E.承担赔偿责任
[不定项选择题]根据下面资料,回答题 Summer Camps for Teenagers There are many types of summer camps for teenagers to attend. They′re a great way for teens to make friends and learn valuable lessons about life. If you′re seeking a good summer camp to attend, the first thing you should do is decide what type of camp would be most suitable to your interests and goals. Traditional Camps When you just want the sort of camp in classic films, a traditional overnight camp might be just what you need to grow, learn, and relax this coming summer. These sorts of camps offer more vigorous outdoors activities, yet often allow campers to customize their camping experiences. Chewonki Camp As one of the best summer camps in the country by Boston Magazine, this camp aims to help teens learn about natural history and ecology, and the campers get treats like sailing trips and hiking excursions, besides formal instruction in such things as kayaking, swimming, field sports, and photography. Camp Wicosuta As a top-rated, traditional four-week sleep away camp especially for young ladies, Camp Wicosuta has more than 30 different activities to help teens learn to cook and wash themselves, which aim to help young girls focus on building their self-confidence. Academic Camps Many teens like to advance their education during the summer months while also having fun.There are hundreds of academic camps for them to choose from that specialize in various academic subjects like journalism, languages, law, computers, and sciences. What is the purpose of the activities that teach teens to cook themselves 查看材料
A.To let teens learn and get relaxed.
B.To help girls learn practical skills.
C.To help girls build self-confidence.
D.To make teens focus on science.
[不定项选择题]根据下面资料,回答题 Clothes play a critical part in the conclusions we reach by providing clues to who people are, who they are not, and who they would like to be. They tell us a good deal about the wearer′s background, personality, status, mood, and social outlook. Since clothes are such an important source of social information, we can use them to manipulate people′s impression of us. Our appearance assumes particular significance in the initial phases of interaction that is likely to occur. An elderly middle-class man or woman may be alienated by a young adult who is dressed in an unconventional manner, regardless of the person′s education, background, or interests. People tend to agree on what certain types of clothes mean. Adolescent girls can easily agree on the lifestyles of girls who wear certain outfits, including the number of boyfriends they likely have had and whether they smoke or drink_ Newscasters, or the announcers who read the news on TV, are considered to be more convincing, honest, and competent when they are dressed conservatively. And college students who view themselves as taking an active role in their interpersonal relationships say they are concerned about the costumes they must wear to play these roles successfully. Moreover, many of us can relate instances in which the clothing we wore changed the way we felt about ourselves and how we acted. Perhaps you have used clothing to gain confidence when you anticipated a stressful situation, such as a job interview, or a court appearance. In the workplace, men have long had well-defined precedents and role models for achieving success. It has been otherwise for women. A good many women in the business world are uncertain about the appropriate mixture of "masculine" and "feminine" attributes they should convey by their professional clothing. The variety of clothing alternatives to women has also been greater than that available for men. Male administrators tend to judge women more favorably for managerial positions when the women display less "feminine" grooming--shorter hair, moderate use of make-up, and plain tailored clothing. As one male administrator confessed, "An attractive woman is definitely going to get a longer interview, but she won′t get a job." We can learn from the third paragraph that ___________.查看材料
A.every girl knows how to choose their own unique style of clothes
B.newscasters who are dressed conservatively tend to be irresolute
C.announcers who read the news on TV should wear certain outfits to gain confidence
D.the clothing a college student wore can affect the way he/she behaves
[不定项选择题]根据下面资料,回答题 German Prime Minister Otto Von Bismarck may be most famous for his 11 and diplomatic talent, but his contributions to the society include many of today′s social insurance programs. During the middle of the 19th century, Germany, along with other European nations, 12 an unusual outbreak of workplace deaths and accidents as a result of growing 13 . Motivated in part by Christian sympathy for the helpless as well as a practical political impulse to get the created of the socialist labor movement, Bismarck 14 the world′ s first worker′ s compensation law in 1884. By 1908, the United States was the 15 industrial nation in the world that lacked workers′ compensation insurance. American′s injured workers could seek compensation in a court of law, but they still faced a number of tough legal barriers. 16 , employees had to prove that their injuries directly 17 employer′s lack of care and they themselves were ignorant about potential danger in the workplace. The first state workers′ compensation law in this country passed in 1911, and the program soon 18 throughout the nation. After World War II, benefit payments to American workers did not 19 the cost of living. In fact, real benefit levels were lower in the 1970s than they were in the 1940s, and in most states the maximum benefit was below the poverty level for a family of four. In 1970, President Richard Nixon set up a national commission to study the problems of workers′ compensation. Two years later, the commission issued 19 key recommendations, 20 one that called for increasing compensation benefit levels to 100 percent of the states′ average weekly wages.
A.resulted in
B.stood for
C.resulted from
D.dealt with

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