2021 GRE Premium Files Test pdf - Free Dumps Collection [Q91-Q112]

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2021 GRE Premium Files Test pdf - Free Dumps Collection

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NEW QUESTION 91
Exhibit.

A group of 3 different investors is to be randomly selected from the 5 investors shown. What is the probability that, for at least 2 of the 3 investors selected, the number of shares of Stock X purchased and then sold will be less than 1.5 times the corresponding number for stock Y?
A)

B)

C)

D)

E)

  • A. Option A
  • B. Option E
  • C. Option B
  • D. Option C
  • E. Option D

Answer: D

 

NEW QUESTION 92
The five points C, D, E, F, and G lie on the number line, in that order from left to right, so that CD = 1.5 (EF) and DE = 1.5 (FG).

  • A. Quantity B is greater.
  • B. Quantity A is greater.
  • C. The two quantities are equal.
  • D. The relationship cannot be determined from the information given.

Answer: C

 

NEW QUESTION 93
W. E. B. Du Bois's exhibit of African American history and culture at the 1900 Paris Exposition Universelle attracted the attention of a world of sociological scholarship whose values his work challenged. Du Bois believed that sociological sociologists failed in their attempts to gain greater understanding of human deeds because their work examined not deeds but theories and because they gathered data not to effect social progress but merely to theorize. In his exhibit. Du Bois sought to present cultural artifacts that would shift the focus of sociology from the construction of vast generalizations to die observation of particular. living individual elements of society and the working contributions of individual people to a vast functioning social structure.
The passage implies that Du Bois attributed which of the following beliefs to Spencerian sociologists?

  • A. Vast generalizations have limited value.
  • B. Particulars are more important than universals.
  • C. Data gathering is a relatively unimportant part of sociological research.
  • D. Theorizing is important to the understanding of human actions.
  • E. Sociology should focus on the living elements of society rather than cultural artifacts.

Answer: D

 

NEW QUESTION 94
LATITUDE:

  • A. conformity
  • B. inflection
  • C. strictness
  • D. point of focus
  • E. restraint

Answer: E

Explanation:
Explanation/Reference:
Explanation:
One meaning of LATITUDE is "freedom from limitations or restraints" - just the opposite of restraint

 

NEW QUESTION 95
For absolute dating of archeological artifacts, the radiocarbon method emerged during the latter half of the twentieth century as the most reliable and precise method. The results of obsidian (volcanic glass) dating, a method based on the belief that newly exposed obsidian surfaces absorb moisture from the surrounding atmosphere at a constant rate, proved uneven. It was initially thought that the thickness of the hydration layer would provide a means of calculating the time elapsed since the fresh surface was made. But this method failed to account for the chemical variability in the physical and chemical mechanism of obsidian hydration. Moreover, each geographic source presented unique chemical characteristics, necessitating a trace element analysis for each such source. Yet despite its limitations, obsidian dating helped archeologists identify the sources of many obsidian artifacts, and to identify in turn ancient exchange networks for the flow of goods. Nor were ceramic studies and fluoride analysis supplanted entirely by the radiocarbon method, which in use allows for field labeling and laboratory errors, as well as sample contamination. In addition, in the 1970s, dendrochronological (tree-ring) studies on the bristle cone pine showed that deviation from radiocarbon values increases as one moves back in time. Eventually calibration curves were developed to account for this phenomenon; but in the archeological literature we still find dual references to radiocarbon and sidereal, or calendar, time.
The author mentions all of the following as problems with radiocarbon dating EXCEPT for

  • A. contamination of artifacts
  • B. identification errors by archeological field workers
  • C. deterioration of samples
  • D. mistakes by laboratory workers
  • E. disparities with the calendar dating system

Answer: C

Explanation:
Explanation/Reference:
Explanation:
In the second paragraph, the author mentions choices (A), (C), (D), and E as problems with radiocarbon dating. Nowhere in the passage, however, does the author mention any problem involving sample deterioration

 

NEW QUESTION 96
It takes Paul m minutes to mow the lawn. Assuming he mows at a constant rate, after Paul mows for k minutes, what part of the lawn remains to be mowed?

  • A. Option C
  • B. Option A
  • C. Option E
  • D. Option B
  • E. Option D

Answer: B

Explanation:
Explanation/Reference:
Explanation:


Paul has mowed of the lawn in k minutes. Still not mowed, then, is or

 

NEW QUESTION 97
Pumping at a constant rate, a certain gasoline pump can fill an empty 50-gallon tank in 2 minutes. If the pump pumped gasoline into the 50-gallon tank at the constant rate for 1.5 minutes and the tank had 10 gallons of gasoline in it when the pump began pumping, what percent of the volume of the 50-gallon tank was filled with gasoline at the end of the 1.5 minutes?

Answer:

Explanation:
% 95s

 

NEW QUESTION 98
The recent birth of septuplets has spawned many newspaper articles presenting _______ accounts of medical problems associated with multiple births, _______ the initial heartwarming stories about the septuplets that dominated the press.

  • A. sobering . . counterbalancing
  • B. detailed . . substantiating
  • C. various . . contradicting
  • D. depressing . . minimizing
  • E. dispassionate . . obscuring

Answer: A

Explanation:
Explanation/Reference:
Explanation:
The best word for the second blank must suggest how the articles about "medical problems" related to the
"heartwarming stories" that first appeared. It makes sense that sobering accounts would counterbalance heart warming stores.

 

NEW QUESTION 99
Even the most complex models used in fishery management are cartoons of reality. They reduce hundreds of links in food webs to a handful and inadequately represent processes operating over space. Many of their assumptions are as flawed today as those of the simplest models of the past. Fish stocks, for one. are still assumed to be populations of a species that are isolated from one another. Yet many populations mix at their edges and some even migrate through areas occupied by other populations. Furthermore, the more complex models suffer from a "crisis of complexity"-more is really less. Adding layers of detail, each carrying its own set of assumptions, produces instability. The model's behavior becomes erratic, and conclusions drawn from it can be downright misleading.
In the context of the passage, the highlighted portion serves to

  • A. confirm a prediction
  • B. demonstrate an oversimplification
  • C. recommend a reformulation
  • D. anticipate an objection
  • E. question a finding

Answer: B

 

NEW QUESTION 100
VIE:

  • A. grow weary
  • B. change priorities
  • C. fall behind
  • D. reduce expectations
  • E. admit defeat

Answer: E

Explanation:
Explanation/Reference:
Explanation:
To VIE is to compete or contend (as in a contest), contrary to giving up, or admitting defeat.

 

NEW QUESTION 101
The village of Vestmannaeyjar, in the far northern country of Iceland, is as bright and clean and up-to-date as any American or Canadian suburb. It is located on the island of Heimaey, just off the mainland. One January night in 1973, however, householders were shocked from their sleep. In some backyards red-hot liquid was spurting from the ground.
Flaming "skyrockets" shot up and over the houses. The island's volcano, Helgafell, silent for seven thousand years, was violently erupting! Luckily, the island's fishing fleet was in port, and within twenty-four hours almost everyone was ferried to the mainland. But then the agony of the island began in earnest. As in a nightmare, fountains of burning lava spurted three hundred feet high. Black, baseball-size cinders rained down. An evilsmelling, eye-burning, throat-searing cloud of smoke and gas erupted into the air, and a river of lava flowed down the mountain. The constant shriek of escaping steam was punctuated by ear- splitting explosions. As time went on, the once pleasant village of Vestmannaeyjar took on a weird aspect.
Its street lamps still burning against the long Arctic night, the town lay under a thick blanket of cinders. All that could be seen above the ten-foot black drifts were the tips of street signs. Some houses had collapsed under the weight of cinders; others had burst into flames as the heat ignited their oil storage tanks. Lighting the whole lurid scene, fire continued to shoot from the mouth of the looming volcano. The eruption continued for six months. Scientists and reporters arrived from around the world to observe the awesome natural event. But the town did not die that easily. In July, when the eruption ceased, the people of Heimaey Island returned to assess the chances of rebuilding their homes and lives. They found tons of ash covering the ground. The Icelanders are a tough people, however, accustomed to the strange and violent nature of their Arctic land. They dug out their homes. They even used the cinders to build new roads and airport runways. Now the new homes of Heimaey are warmed from water pipes heated by molten lava.
This liquid was coming from the ...

  • A. sky
  • B. mountains
  • C. ocean
  • D. sea
  • E. ground

Answer: E

Explanation:
Explanation/Reference:
Explanation:

 

NEW QUESTION 102
A rectangular floor will be completely covered with square tiles, each of which has sides of length 6 inches. If tiles are laid side by side with no space between them and no tiles are cut. then the number of tiles needed to cover the floor is 1.080. Which of the following could be the dimensions of the floor? (Note: 12 inches- 1 foot.)

  • A. 15 feel by 9 feet
  • B. 15 feet by 18 feet
  • C. 45 feet by 36 feet
  • D. 30 feet by 18 feet
  • E. 30 feet by 36 feet

Answer: B

 

NEW QUESTION 103
If x < y, which of the following must be true?

  • A.
  • B.
  • C.
  • D.
  • E.

Answer: E

 

NEW QUESTION 104
The politician's record while in office, though (i)_________- hardly accounts for her high standing three decades later
-a standing all the more (it)_________because of continuing assaults on her reputation during those years.

  • A. bewildering
  • B. admirable
  • C. unappreciated
  • D. persistent
  • E. unusual regrettable

Answer: B,E

 

NEW QUESTION 105
AGILE : DANCER ::

  • A. dangerous : criminal
  • B. tall : building
  • C. barren : desert
  • D. diligent : worker
  • E. delicious : fruit

Answer: D

Explanation:
Explanation/Reference:
Explanation:
This is an "ideal characteristic" analogy. An effective, or ideal, DANCER is AGILE (nimble), although agility is not a defining characteristic of a dancer. Similarly, an effective, or ideal,worker is diligent (not lazy), although diligence is not a defining characteristic of a worker.

 

NEW QUESTION 106
What does the word patent mean to you? Does it strike you as being something rather remote from your interests? If it does, stop and think a moment about some of the commonplace things that you use every day, objects that you take for granted as part of the world around you. The telephone, radio, television, the automobile, and the thousand and one other things (even the humble safety pin) that enrich our lives today once existed only as ideas in the minds of men. If it had not been possible to patent their ideas and thus protect them against copying by others, these inventions might never have been fully developed to serve mankind. If there were no patent protection there would be little incentive to invent and innovate, for once the details of an invention became known, hordes of imitators who did not share the inventor's risks and expenses might well flood the market with their copies of his product and reap much of the benefit of his efforts.
The technological progress that has made America great would wither rapidly under conditions such as these. The fundamental principles in the U S patent structure came from England. During the glorious reign of Queen Elizabeth I in England, the expanding technology was furthered by the granting of exclusive manufacturing and selling privileges to citizens who had invented new processes or tools- a step that did much to encourage creativity. Later, when critics argued that giving monopoly rights to one person infringed on the rights of others, an important principle was added to the patent structure: The Lord Chief Justice of England stated that society had everything to gain and nothing to lose by granting exclusive privileges to an inventor, because a patent for an invention was granted for something new that society never had before. Another basic principle was brought into law because certain influential people in England had managed to obtain monopoly control over such age-old products as salt, and had begun charging as much as the traffic would bear. The public outcry became so great that the government was forced to decree that monopoly rights could be awarded only to those who created or introduced something really unique. These principles are the mainstays of our modern patent system in the United States. In colonial times patent law was left up to the separate states. The inconsistency, confusion, and unfairness that resulted clearly indicated the need for a uniform patent law, and the men who drew up the Constitution incorporated one. George Washington signed the first patent law on April 10,1790, and less than four months later the first patent was issued to a man named Samuel Hopkins for a chemical process, an improved method of making potash for use in soapmaking. In 1936 the Patent Office was established as a separate bureau. From the staff of eight that it maintained during its first year of operation it has grown into an organization of over 2500 people handling more than 1600 patent applications and granting over
1000 every week. The Patent Office in Washington D C, is the world's largest library of scientific and technical data, and this treasure trove of information is open for public inspection. In addition to more than
3 million U S patents, it houses more than 7 million foreign patents and thousands of volumes of technical literature. Abraham Lincoln patented a device to lift steam vessels over river shoals, Mark Twain developed a self-pasting scrapbook, and millionaire Cornelius Vanderbilt invented a shoe-shine kit. A patent may be granted for any new and useful process, machine, article of manufacture, or composition of matter ( a chemical compound or combinations of chemical compounds), or any distinct and new variety; of plant, including certain mutants and hybrids. The patent system has also helped to boost the wages of the American worker to an unprecedented level; he can produce more and earn more with the computer, adding machines, drill press or lathe. Patented inventions also help keep prices down by increasing manufacturing efficiency and by stimulating the competition that is the foundation of our free enterprise system. The decades of history have disclosed little need for modification of the patent structure. Our patent laws, like the Constitution from which they grew, have stood the test of time well. They encouraged the creative processes, brought untold benefits to society as a whole, and enabled American technology to outstrip that of the rest of the civilized world.
What is the main idea of this passage?

  • A. The patent system in England has been influential in American patent development.
  • B. The Constitution protects the patent system.
  • C. The patent system encourages free enterprise.
  • D. Patented inventions protect the inventor, free enterprise, and the creative process.
  • E. Patents are important tools for inventors.

Answer: D

Explanation:
Explanation/Reference:
Explanation:

 

NEW QUESTION 107

if then what is the value of yin terms of x?

  • A. Option A
  • B. Option E
  • C. Option B
  • D. Option C
  • E. Option D

Answer: D

Explanation:
Explanation/Reference:
Explanation:

 

NEW QUESTION 108
A certain strain of bacteria called lyngbya majuscula, an ancient ancestor of modern-day algae, is making a comeback in ocean waters just off the world's most industrialized coastal regions. This primitive bacteria has survived for nearly three billion years due to a variety of survival mechanisms. It can produce its own fertilizer by pulling nitrogen out of the air; it relies on a different spectrum of light than algae do, allowing it to thrive even in deep, murky waters; and when it dies and decays, it releases its own nitrogen and phosphorous, on which the next generation of lyngbya feeds. Lyngbya emits more than one hundred different toxins harmful to other ocean life as well as to humans. Commercial fishermen and divers who come in contact with the bacteria frequently complain of skin rashes and respiratory problems, which can keep these workers off the job for months at a time. The bacteria further disrupts local economies by blocking sunlight to sea grasses that attract fish and other sea life. Scientists attribute the modern-day reappearance of lyngbya, and the resulting problems, chiefly to nitrogen- and phosphorous-rich sewage partially processed at wastewater treatment plants and pumped into rivers that feed coastal ocean waters.
It can be inferred from the passage that the lyngbya majuscula strain has survived for billions of years partly because it

  • A. adapts easily to changes in water temperature
  • B. is threatened by few, if any, natural predators
  • C. possesses the ability to essentially feed on itself
  • D. emits harmful toxins that ward off potential predators
  • E. does not depend on light for its existence

Answer: C

Explanation:
Explanation/Reference:
Explanation:
In the first paragraph, among the explanations given for lyngbya's survival is that when it dies and decays, the decaying matter, which is rich in the nutrients the strain needs to grow, sinks to the sea floor, where it nourishes the next generation of lyngbya. In this sense, the strain has survived partly by its ability to essentially feed on itself.

 

NEW QUESTION 109
Iii recent years ii has become common for industrial workers who do heavy lifting to wear special wide leather belts that are advertised as reducing back strain. However, physiologists doubt that these belts actually reduce back strain. In fact the belts must put additional strain on the back, since records of injuries to industrial workers show that people wearing the belts were significantly more likely to suffer a back injury than were others doing the same job.
Which of die following, if true, most strengthens the argument?

  • A. Those workers who chose to wear the special belts always tended to follow proper safety practices on the job.
  • B. The special belts were first popularized by recreational weight lifters.
  • C. Because of changes in federal safety regulations, records of worker injuries have become much more comprehensive in recent years.
  • D. For more than a decade, the overall rate of back injuries among industrial workers has been increasing.
  • E. In recent years the length of the average workweek-measured in hours-has increased dramatically for industrial workers who do heavy lifting.

Answer: D

 

NEW QUESTION 110
HOSPITABLE : COURTESY

  • A. despondent : glee
  • B. leisurely : haste
  • C. morbid : cheerfulness
  • D. vindictive : spite
  • E. infamous : honor

Answer: D

Explanation:
Explanation/Reference:
Explanation:

 

NEW QUESTION 111
BOAT : WAKE ::

  • A. gardener : cuttings
  • B. drill : hole
  • C. actor : performance
  • D. scalpel : scar
  • E. airplane : tarmac

Answer: D

Explanation:
Explanation/Reference:
Explanation:
This is an "evidence or result of" analogy. A BOAT creates a WAKE and leaves it behind, across the surface of the water. Similarly, a scalpel (surgeon's knife) creates a scar and leaves it behind, like a trail, across the surface of the skin. Strengthening the analogy is that a wake is a byproduct of boating, like a scar is a byproduct of cutting with a scalpel.

 

NEW QUESTION 112
......

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