相关试题
【判断题】
任何单位和成年人都有参加有组织的灭火工作的义务
【判断题】
反应器设置超温连锁是为了防止因为超温而发生爆炸事故
【判断题】
生产经营单位不得采购和使用无安全标志的特种劳动防护用品
【判断题】
禁止在粉尘作业现场进食、抽烟、饮水等以减少粉尘危害
【判断题】
离心泵长时间在小流量情况下运行会使部分液体汽化，吸入液体发生困难
【判断题】
球形外壳内的爆炸压力高于其他形状外壳的爆炸压力
【判断题】
受突发事件影响地区的生产经营单位应当根据本地区遭受损失的情况，制定救助、补偿、抚慰、抚恤、安置等善后工作计划并组织实施，妥善解决因处置突发事件引发的矛盾和纠纷
【判断题】
因为氨是极易被水吸收的，所以发生跑氨可以大量水
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在其它条件一定的情况下，压力容器的工作压力越高，其直径越大
【判断题】
火炬管网压力过低，会造成火炬气回收压缩机入口低压连锁
【判断题】
烘炉的目的是力了缓慢地除去炉墙在砌筑过程中所积存的水分，并使耐火水泥得到充分的烧结
【判断题】
电机运转过程中的噪音是由交变电流相互作用而发生的
【判断题】
裂解炉过剩空气，会造成辐射段横跨温度升高，并且可能会造成裂解炉
【判断题】
碳三加氢反应为放热反应，必须严格控制温度，防止飞温
【判断题】
根据重大事故发生的特点，应急救援的特点是行动必须做到迅速、准确和有效，应急救援的首要任务是抢救受害人员
【判断题】
硫化氢、一氧化碳着火时，如不能切断气源则不允许熄灭正在燃烧的气体
【判断题】
从事化工作业人员必须佩带防护镜或防护面罩
【判断题】
合成氨装置的特点是高温高压、易燃易爆、点多面长、有毒有害，发生事故可能性较大
【判断题】
冷态炉点火时，未燃烧的燃料空气混合物可能聚集在炉膛内某个地方，与火接触爆炸
【判断题】
过滤式呼吸保护器在缺氧空气中提供不了任何保护作用
【判断题】
裂解炉在运行与烧焦两种运行状态间切换时，裂解气大阀与烧焦气阀门切换一定要小心，防止裂解气倒流至烧焦系统中，同时不能使裂解炉系统超压
【判断题】
难度大、劳动强度大、时间长的受限空间作业应采职轮流换岗作业
【判断题】
危险化学品事故造成环境污染的，由事发企业发布有关信息
【判断题】
加氢尾油作为裂解原料时由于原料中含硫量较高不需要加硫
【判断题】
裂解炉开年前炉膛置换的主要目的是防止因燃料阀门泄露时，炉膛达到爆炸极限，造成爆鸣或爆炸
【判断题】
狭义的危险是指系统中特定的危险事件发生可能性和严重程度的结合
【判断题】
乙烯球罐巡回检查的重点部位是安全阀、压力表、温度计、液面计等安全附件是否完好、灵敏、可靠及准确
【判断题】
裂解炉从运行到烧焦及从烧焦到运行的阀门切换一定要小心.裂解气大阀的上游必须保持高于总管压力至少20-30KPa以防止裂解气倒流，最大不能超过350KPa以防止系统超压
【判断题】
危险化学品单位发生危险化学品事故，造成他人人身伤害或者财产损失的，依法承担赔偿责任
【判断题】
演练实施过程中出现特殊或意外情况，演练总指挥可决定中止演练
【判断题】
在进行裂解炉超高压蒸汽过热温度联锁试验时，通常是通过工艺操作使过热温度达到联锁，看裂解炉是否联锁
【判断题】
碱洗塔检修进人时，只需要氧含量合格，不需要用水淋湿塔内
【判断题】
专项应急预案应制定明确的救援程序和具体的应急救援措施
推荐试题
【单选题】
Formal education in the United States consists of , secondary and higher education.
A. A. kindergarten
B. B. public
C. C. elementary
D. D. private
【单选题】
At present, U. S. exports account for of the world’s total.
A. A. 10%
B. B. 15%
C. C. 20%
D. D. 25%
【单选题】
is not one of the three giants in American automobile industry.
A. A. Ford
B. B. General Motors
C. C. Chrysler
D. D. American Motors
【单选题】
The following statements are all true except .
A. A. Agribusinesses reflect the big, corporate nature of many farm enterprises.
B. B. Agribusinesses maintain a balanced trade pattern between agricultural imports and exports.
C. C. Agribusinesses range from one-family corporations to multinational firms.
D. D. Agribusinesses include a variety of farm businesses and structures.
【单选题】
About of American crops are for export.
A. A. half
B. B. one third
C. C. one fourth
D. D. one fifth
【单选题】
President Johnson tried to build a “Great Society” by introducing various programs like the following except .
A. A. Medicare
B. B. Food Stamps
C. C. Education Initiatives
D. D. Unemployment Pension
【单选题】
The following inventions took place during the “second indThe following inventions took place during the “second industrial revolution” except .
A. A. typewriter
B. B. telephone
C. C. electric light
D. D. refrigerator
【单选题】
The first National Bank of the United States was established with the urge of .
A. A. George Washington
B. B. Thomas Jefferson
C. C. Andrew Jackson
D. D. Alexander Hamilton
【单选题】
Chartered companies were NOT granted the by the British King or Queen.
A. A. political authority
B. B. economic rights
C. C. judicial authority
D. D. diplomatic authority
【单选题】
The modern American economy progressed from to , and eventually, to .
A. A. colonial economy, handcraft economy, industrial economy
B. B. farming economy, handcraft economy, industrial economy
C. C. colonial economy, farming economy, industrial economy
D. D. handcraft economy, farming economy, industrial economy
【单选题】
America produces a major portion of the world’s products in the following fields except .
A. A. machinery
B. B. automobiles
C. C. ore
D. D. chemicals
【单选题】
The President is directly voted into office by .
A. A. all citizens of America
B. B. the citizens over 18 years old
C. C. electors elected by the voters
D. D. the senators and representatives
【单选题】
The Supreme Court is composed of justices.
A. A. six
B. B. seven
C. C. eight
D. D. nine
【单选题】
The terms for a Senator and Representative are and years respectively.
A. A. two, four
B. B. two, three
C. C. two, six
D. D. six, two
【单选题】
According to the Constitution, a candidate for President must be .
A. A. at least 35 years old
B. B. at least a 14 years’ resident of the United States
C. C. born in America
D. D. all of the above
【单选题】
The following except are all powers of the President.
A. A. vetoing any bills passed by Congress
B. B. appointing federal judges when vacancies occur
C. C. making laws
D. D. issuing executive orders
【单选题】
All the following except cannot make legislative proposal.
A. A. the Senator
B. B. the Representative
C. C. the Secretary of State
D. D. the President
【单选题】
The following except are guaranteed in the Bill of Rights.
A. A. freedom of religion
B. B. the right to get into people’s house by police
C. C. freedom of speech and of press
D. D. the right to own one’s weapon if one wishes
【单选题】
The Bill of Rights .
A. A. defines the rights of Congress and the rights of the President
B. B. guarantees citizens of the United States specific individual rights and freedoms
C. C. is part of the Declaration of Independence
D. D. has no relationship with the Constitution
【单选题】
The Constitution of the United States .
A. A. gives the most power to Congress
B. B. gives the most power to the President
C. C. tries to give each branch enough power to balance the others
D. D. gives the most power to the Supreme Court
【单选题】
The U. S. Constitution came into effect in .
A. A. 1787
B. B. 1789
C. C. 1791
D. D. 1793
【单选题】
The Vietnam War was a long-time suffering for Americans, and it continued throughout the terms of Presidents .
A. A. Johnson, Nixon and Ford
B. B. Truman, Eisenhower and Kennedy
C. C. Kennedy, Johnson and Nixon
D. D. Eisenhower, Kennedy and Johnson
【单选题】
President applied New Deal to deal with the problems of the Great Depression.
A. A. Wilson
B. B. Truman
C. C. Roosevelt
D. D. Kennedy
【单选题】
The policy of the United States was at the beginning of the two world wars.
A. A. neutrality
B. B. full involvement
C. C. partial involvement
D. D. appeasement
【单选题】
Abraham Lincoln issued to grant freedom to all slaves.
A. A. Declaration of Independence
B. B. Constitution
C. C. Emancipation Proclamation
D. D. Bill of Rights
【单选题】
In May 1775, was held in Philadelphia and began to assume the functions of a national government.
A. A. the First Continental Congress
B. B. the Second Continental Congress
C. C. the Boston Tea Party
D. D. the Congress of Confederation
【单选题】
The first shots of the American dependence were fired in .
A. A. Concord
B. B. Lexington
C. C. Philadelphia
D. D. Boston
【单选题】
“No taxation without representation” was the rallying slogan of .
A. A. the settlers of Virginia
B. B. the people of Pennsylvania
C. C. the colonists in New England
D. D. the people of the 13 colonies
【单选题】
The Seven Years’ War occurred between the .
A. A. French and American Indians
B. B. French and Spaniards
C. C. French and British
D. D. British and American Indians
【单选题】
Pilgrim Fathers are a group of who came to America to avoid persecution in England.
A. A. Protestants
B. B. Puritans
C. C. Catholics
D. D. Christians
【单选题】
The first successful English colony in North America was founded at in .
A. A. Jamestown, Louisiana
B. B. Boston, Massachusetts
C. C. Jamestown, Virginia
D. D. Plymouth, Georgia
【单选题】
The characteristic of dominant American culture is .
A. A. English-speaking, northern European, Roman Catholic and middle-class
B. B. English-speaking, western European, Roman Catholic and upper-class
C. C. English-speaking, northern European, Protestant and upper-class
D. D. English-speaking, western European, Protestant and middle-class
【单选题】
The ImmiWar of Ingrants Act of 1924 restricted the further immigration into the United States, particularly from .
A. A. Europe
B. B. Asia
C. C. Africa
D. D. South America
【单选题】
The largest minority in the United States is the .
A. A. Pacific Islanders
B. B. Blacks
C. C. Native Americans
D. D. Asians
【单选题】
The native Alaskan population includes the following except the .
A. A. Indians
B. B. Eskimos
C. C. Aleuts
D. D. Blacks
【单选题】
is located on the U. S. –Canadian border between Lake Erie and Lake Ontario.
A. A. Yellowstone National Park
B. B. The Grand Canyon
C. C. Niagara Falls
D. D. The Great Salt Lake
【单选题】
Some of the world famous universities like Harvard, Yale and MIT are located .
A. A. in the South
B. B. along the Pacific Coast
C. C. in New England
D. D. in the Midwest
【单选题】
The largest river in the U. S. is .
A. A. the Missouri River
B. B. the Mississippi River
C. C. the Ohio River
D. D. the Colorado River
【单选题】
The U. S. lies in North America, with Canada to the north, Mexico to the south, the Atlantic to its and the Pacific to its .
A. A. northern, east, west
B. B. central, east, west
C. C. southern, west, east
D. D. western, east, west
【单选题】
The state of is the largest in area of all the states.
A. A. Alaska
B. B. Hawaii
C. C. Texas
D. D. Florid
