问题 问答题 简答题

说明使用吊装工具安全注意事项。

答案

参考答案:

使用电动葫芦的安全操作规程。

(1)手动葫芦应有鲜明的额定负荷标记。

(2)每半年应对链条和钢丝绳检查、保养1次,每年进行超负荷125%试验。吊链的额度载荷应大于被吊物体重量,严禁超负荷使用。

(3)手动葫芦使用前,应认真检查转动部分是否灵活;是否有卡链现象,链条是否有断节或裂纹;销子是否牢固;起重链条是否打扭。如有打扭现象,应调整好后方能使用。

(4)对转动部分应定期润滑。防止链条锈蚀,受严重腐蚀及有断痕和裂纹的链条,应报废更新,不准凑合使用。

(5)支承葫芦的固定点必须坚固可靠。若固定在建筑物上,应校核建筑物是否能承受。

(6)吊挂绳索及支架横梁是否结实稳固;三交架构件是否有裂纹、弯扭等缺陷,支撑是否牢固,检查合格后方可使用。

(7)使用时,先将手链反拉,将起重链条倒松,使倒链有足够的起升距离。操作时注意慢慢拉紧,使其逐渐受力,检查无异常方可正式操作。

(8)使用中无论处于什么位置,拉链应与链轮方向一致防止拉链托槽。手拉链时用力要均匀,不得过猛过快。当用于水平方向时,应在拉链的入口处垫物承托链条,防止发生故障。

(9)使用手动葫芦,应根据其起重能力的大小决定拉链的人数。手拉链拉不动时,应查明原因,不准增加人数猛拉,以免链条受力过大而断裂。

(10)起吊重物时,如需暂时将物体悬空,应将手拉链栓在起重链上,防止倒链自锁失灵,造成事故。

(11)吊装时,操作人员应用好防护用品。

(12)操作人员站立的位置应安全可靠,防止被吊物体离开地面时位移,造成挤伤事故。

(13)使用时,应先收紧绳后,经检查无误,无异常现象,方可继续进行起吊工作。

(14)放下吊物时,必须缓慢轻放,不准自行落下。

阅读理解

Walt Disney began to make cartoon movies when he was young. But he didn’t have much money and he didn’t always have enough to eat. One day a mouse ran near his desk when he worked in his small office.

“Would you like to be my pet? ”Disney asked the mouse. He caught the mouse and kept it as a pet. A few years later, Disney decided to make a cartoon about it. “I am making a cartoon about a mouse named Mortimer,” he told his wife. “Mortimer Mouse? I think Mickey Mouse would be a better name.” She said. “You are right!”  Disney agreed and made many Mickey Mouse cartoons.

People all over the world saw Mickey and loved it. Mickey Mouse made Disney famous. Then come Donald Duck, and Goofy Dog and others. Disney began to make full length (长) cartoons. Then he made cartoon movies for television. Millions of children watched the shows every week.

In California, real boats, castles (城堡), trains, mountains, rivers, all in one beautiful park. Millions of people came to Disneyland. He died in 1966, but the world will not forget him quickly. Mickey Mouse and all his cartoons will help us to remember him.

小题1:When Disney began making cartoon movies,          .

A.he was very poor

B.the mouse helped him

C.his wife knew nothing about it

D.People didn’t like Cartoons at all小题2:This passage mainly tells us       .

A.how Disney make Cartoon movies

B.how Disney built Disneyland

C.something about Disney’s childhood

D.something about Disney’s life小题3:Which of the flowing sentences is true?

A.Disney’s wife asked him to make a cartoon about the mouse.

B.Mickey Mouse was the name suggested by Disney’s wife.

C.Disney caught a mouse and made a cartoon about it at once.

D.People will remember Disney because of the Disneyland.

单项选择题 A1型题