خبرگزاری آیصد (جدیدترین و جذاب ترین اخبار ایران و جهان)

نشر توسط:admin Views 27 تاریخ : 10 ارديبهشت 1395

نظرات ()

PART A: Vocabulary Directions: Choose the word or phrase (1), (2), (3), or (4) that best completes each sentence. Then mark the correct choice on your answer sheet. 1- The geology student made a surprising discovery; the volcano believed to be ……… was about to erupt. 1) dormant 2) temporary 3) affable 4) vulnerable 2- We waited for the storm to ……… before we left. 1) abase 2) abide 3) abridge 4) abate 3- The minister desired the position simply for the ……… associated with it. 1) scope 2) status 3) origin 4) feature 4- The ……… Researcher made sure to check her measurements multiple times. 1) initial 2) vague 3) diligent 4) apposite 5- Denver’s impractical plan to build a subway system was ……… in 1970s. 1) surmised 2) scrapped 3) strived 4) scattered 6- ……… such as hair color and eye color are inherited genetically from one’s parents. 1) Traits 2) Dimensions 3) Omens 4) Enigmas 7- The company has ……… $ 1000 to the team to get the project started. 1) ascribed 2) bestowed 3) deposited 4) allocated 8- After a week the jury had still not reached a ……… . 1) status quo 2) sequence 3) verdict 4) suspect 9- Heavy rains had ……… the expedition’s progress through the north-west of the country. 1) abandoned 2) hindered 3) evaded 4) distressed 10- The rattlesnake is the most ……… snake in the Untied States. 1) venomous 2) zealous 3) haphazard 4) ancestral Part B: Cloze Test Directions: Read the following passage and decide which choice (1), (2), (3), or (4) best fits each space. Then mark the correct choice on your answer sheet. The ancient Romans built an extensive and …(11)… to serve their needs. The Roman road-building era began in 312 BC. The roads provided economic and military access from Rome to distant parts of its far-flung empire. The first road …(12)… the Appian Way, which led, from Rome to Brundisium (now Brindisi), a port …(13)… is now southern Italy. The Appian Way was the main route to Greece, and it ran over 560 km (350 mi). A second road, from Rome to Naples, provided the first stage of the route …(14)… by troops headed to Africa. Roman advances in road-building techniques included preparation of foundation soils and base courses, brick paving, and, …(15)…, provision for adequate drainage. 11- 1) roads of durable system 2) system of durable roads 3) durable system of roads 4) durable road of systems 12- 1) was constructed 2) was to construct 3) that was constructed 4) constructed was 13- 1) in which it 2) in what 3) where is 4) which it is 14- 1) used 2) using 3) be used 4) was used 15- 1) the more important 2) most important 3) the most important 4) most importantly PART C: Reading Comprehension Originally used in the aerospace industry, carbon composites are fining increased application in the chemical process industries as corrosion-resistant materials. Primarily used to make column and reactor internals in highly corrosive environments, such as acids (HCl, HBr, HF, 24, 34), acetic acid derivatives, caustic and ammonia and chlorinated hydrocarbons, carbon-composites are being used in trays and supports, column liners, packing sparger and distribution tubes, and support members such as I-beams, thermowell sheaths and spray nozzles. HSOHPO 16- According to the text, spargers are ……… . 1) made of carbon composites 2) used for distribution tubes 3) the same as support member 4) used widely in process industries 17- According to the text, acetic acid derivatives are ……… . 1) non-corrosive compounds 2) low corrosive compounds 3) highly corrosive compounds 4) less corrosive compared with HCl and 18- Carbon composites have many applications in ……… industries. 1) all 2) aerospace 3) corrosive 4) chemical process Passage 2: Among toxic substances reaching hazardous are heavy metals. Heavy metal pollution in the aquatic system has become a serious threat today and of great environment concern as they are non-biodegradable and thus persistent. Metals are mobilized and carried into food web as a result of leaching from waste dumps, polluted soils and water. 19- According to the texts, “web” means ……… . 1) bodies 2) chain 3) taste 4) texture 20- According to the texts, “persistent” means ……… . 1) not biodegradable 2) nuisance to the environment 3) hazardous pollutant 4) continuing to exist Passage 3: Chemical engineers have been able to take small amounts of antibiotics developed by people such as Sir Alexander Flemming (who discovered penicillin in 1929) and increase their yields several thousand times through mutation and special brewing techniques. Today’s low price, high volume, drugs owe their existence to the work of chemical engineers. This ability to bring once scare materials to all members of society through industrial creativity is a defining characteristic of chemical engineering. 21- According to the text, which of the following statements is true? 1) Sir A.Flemming discovered antibiotics mutation 2) All members of the society benefit from low price drugs. 3) Chemical engineers are able to reduce the price by mass production. 4) Chemical engineers are capable of producing all kind of chemical and drugs. 22- As used in the text, scarce materials refers to ……… . 1) low price, high volume drugs 2) low price, high volume products 3) drugs available in small quantities 4) products available in small quantities Passage 4: The PV Delta-Pak structured packing in used in stripper columns, providing high mass-transfer efficiency with unusually low pressure losses. For an air-water atmospheric system, the packing has 90 of surface area. Del-Pak is especially recommended for applications where high iron or calcium levels are present. The packing resists the accumulation of iron precipitation, and therefore operates 4-6 times longer than random packing between cleaning. 2ft/ft 23- Data-Pak is a trade name for ……… packing. 1) rough 2) modular 3) loose 4) random 24- Delta-Pak is ……… . 1) high in efficiency and low in pressure drop 2) high in efficiency and in pressure drop 3) low in pressure drop and low in efficiency 4) high in pressure drop and low in efficiency 25- Cycle time in Delta-Pak is much higher compared with ……… packing. 1) random 2) ordinary 3) high efficiency 4) low pressure drop Passage 5: Chemical engineers have long studied complex chemical processes by breaking them up into smaller “unit operations.” Such operations might consist of heat exchangers, filters, chemical reactors and the like. Fortunately this concept has also been applied to the human body. The results of such analysis have helped improve clinical care, suggested improvements in diagnostic and therapeutic devices, and led to mechanical wonders such as artificial organs. Medical doctors and chemical engineers continue to work hand in help us live longer fuller lives. 26- According to the above passage choose the correct sentence: 1) “Unit operations” are more complicated than human organs. 2) Most of the diagnosis and the therapeutic devices are made by chemical engineers. 3) Medical doctors would not do anything without the help of chemical engineers. 4) Chemical engineers have helped medical doctors for improvement of human health. 27- According to the text above, finish the following sentence: The human body ……… . 1) is a complete chemical process. 2) can work with many artificial organs. 3) can be broken up into small unit operations. 4) needs more clinical care than complicated chemical plants. Passage 8: Some of the perturbation to ecosystems are natural while many more are caused by human activities. Humans of course, adversely affected ecosystems on a small scale and on a large scale. The actions of humans can be thought of as domination of nature and this idea has spawned a new philosophical approach to environmental ethics-ecofeminsm. 28- Major ecosystems destructions are caused by ……… . 1) natural events 2) human’s activities 3) natural disasters 4) human’s rehabilitation 29- Perturbation means ……… . 1) accident 2) disturbance 3) excitement 4) pollution 30- According to the text, spawned means ……… . 1) led to 2) captured 3) accepted 4) created