PTE multiple choice single answers questions

PTE Reading: Multiple-Choice, Choose Single Answer Practice Part 04

Multiple-Choice, Choose Single Answer in PTE exam can be considered as the easiest or the toughest sub section, depending upon how an aspirant takes it. As this task can’t be aced in a day or two but through constant practice with high scoring practice material, you can score better in PTE Reading section.

In multi-choice answer type of task, it is advisable to not to answer unless you are absolutely sure. Also check out our other multi choice single answer practice questions:

PTE Reading: Multiple-Choice, Choose Single Answer Practice Part 04

Multiple-Choice, Choose Single Answer Question #1

Since the Hawaiian Islands have never been connected to other land masses, the great variety of plants in Hawaii must be a result of the long-distance dispersal of seeds, a process that requires both a method of transport and an equivalence between the ecology of the source area and that of the recipient area. There is some dispute about the method of transport involved. Some biologists argue that ocean and air currents are responsible for the transport of plant seeds to Hawaii. Yet the results of flotation experiments and the low temperatures of air currents cast doubt on these hypotheses. More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds. While it is likely that fewer varieties of plant seeds have reached Hawaii externally than internally, more varieties are known to be adapted to external than to internal transport.

The author of the passage is primarily concerned with

1) discussing different approaches biologists have taken to testing theories about the distribution of plants in Hawaii
2) discussing different theories about the transport of plant seeds to Hawaii
3) discussing the extent to which air currents are responsible for the dispersal of plant seeds to Hawaii
4) resolving a dispute about the adaptability of plant seeds to bird transport

Multiple-Choice, Choose Single Answer Question #2

Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily. However, some diamonds contain minute inclusions of silicate minerals, commonly olivine, pyroxene, and garnet. These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain. Usually, it is possible to conclude that the inclusions are older than their diamond hosts, but with little indication of the time interval involved. Sometimes, however, the crystal form of the silicate inclusions is observed to resemble more closely the internal structure of diamond than that of other silicate minerals. It is not known how rare this resemblance is, or whether it is most often seen in inclusions of silicates such as garnet, whose crystallography is generally somewhat similar to that of diamond; but when present, the resemblance is regarded as compelling evidence that the diamonds and inclusions are truly cogenetic.

According to the passage, the age of silicate minerals included in diamonds can be determined due to a feature of the

1) trace elements in the diamond hosts
2) trace elements in the rock surrounding the diamonds
3) trace elements in the silicate minerals
4) silicate minerals’ crystal structure

Multiple-Choice, Choose Single Answer Question #3

One of the questions of interest in the study of the evolution of spiders is whether the weaving of orb webs evolved only once or several times. About half the 35,000 known kinds of spiders make webs; a third of the web weavers make orb webs. Since most orb weavers belong either to the Araneidae or the Uloboridae families, the origin of the orb web can be determined only by ascertaining whether the families are related. Recent taxonomic analysis of individuals from both families indicates that the families evolved from different ancestors, thereby contradicting Wiehle’s theory. This theory postulates that the families must be related, based on the assumption that complex behavior, such as web building, could evolve only once. According to Kullman, web structure is the only characteristic that suggests a relationship between families. The families differ in appearance, structure of body hair, and arrangement of eyes. Only Uloborids lack venom glands. Further identification and study of characteristic features will undoubtedly answer the question of the evolution of the orb web.

It can be inferred from the passage that all orb-weaving spiders belong to types of spiders that

1) lack venom glands
2) are included either in the Uloboridae or Araneidae families
3) share few characteristic features with other spider types
4) comprise less than a third of all known types of spiders

Multiple-Choice, Choose Single Answer Question #4

Historically, a cornerstone of classical empiricism has been the notion that every true generalization must be confirmable by specific observations. In classical empiricism, the truth of “All balls are red,” for example, is assessed by inspecting balls; any observation of a non red ball refutes unequivocally the proposed generalization. For W. V. O. Quine, however, this constitutes an overly “narrow” conception of empiricism. “All balls are red,” he maintains, forms one strand within an entire web of statements (our knowledge); individual observations can be referred only to this web as a whole. As new observations are collected, he explains, they must be integrated into the web. Problems occur only if a contradiction develops between a new observation, say, “That ball is blue,” and the preexisting statements. In that case, he argues, any statement or combination of statements (not merely the “offending” generalization, as in classical empiricism) can be altered to achieve the fundamental requirement, a system free of contradictions, even if, in some cases, the alteration consists of labeling the new observation a “hallucination.

The author of the passage is primarily concerned with presenting

1) criticisms of Quine’s views on the proper conceptualization of empiricism
2) evidence to support Quine’s claims about the problems inherent in classical empiricism
3) an account of Quine’s counterproposal to one of the traditional assumptions of classical empiricism
4) an overview of classical empiricism and its contributions to Quine’s alternate understanding of empiricism

Multiple-Choice, Choose Single Answer Question #5

The transplantation of organs from one individual to another normally involves two major problems: (1) organ rejection is likely unless the transplantation antigens of both individuals are nearly identical, and (2) the introduction of any unmatched transplantation antigens induces the development by the recipient of donor-specific lymphocytes that will produce violent rejection of further transplantations from that donor. However, we have found that among many strains of rats these “normal” rules of transplantation are not obeyed by liver transplants. Not only are liver transplants never rejected, but they even induce a state of donor-specific unresponsiveness in which subsequent transplants of other organs, such as skin, from that donor are accepted permanently. Our hypothesis is that (1) many strains of rats simply cannot mount a sufficiently vigorous destructive immune-response (using lymphocytes) to outstrip the liver’s relatively great capacity to protect itself from immune-response damage and that (2) the systemic unresponsiveness observed is due to concentration of the recipient’s donor-specific lymphocytes at the site of the liver transplant.

The primary purpose of the passage is to treat the accepted generalizations about organ transplantation in which of the following ways?

1) Explicate their main features
2) Suggest an alternative to them
3) Examine their virtues and limitations
4) Criticize the major evidence used to support them
5) Present findings that qualify them

Multiple-Choice, Choose Single Answer Question #6

In The Women of Mexico City, 1796-1857, Sylvia Marina Arrom argues that the status of women in Mexico City improved during the nineteenth century. According to Arrom, households headed by females and instances of women working outside the home were much more common than scholars have estimated; efforts by the Mexican government to encourage female education resulted in increased female literacy; and influential male writers wrote pieces advocating education, employment, and increased family responsibilities for women, while deploring women’s political and marital inequality. Mention of the fact that the civil codes of 1870 and 1884 significantly advanced women’s rights would have further strengthened Arrom’s argument. Arrom does not discuss whether women’s improved status counteracted the effects on women of instability in the Mexican economy during the nineteenth century. However, this is not so much a weakness in her work as it is the inevitable result of scholars’ neglect of this period. Indeed, such gaps in Mexican history are precisely what make Arrom’s pioneering study an important addition to Latin American women’s history.

The passage is primarily concerned with doing which of the following?

1) Reviewing a historical study of the status of women in Mexico City during the nineteenth century
2) Analyzing the effects of economic instability on the status of women in Mexico during the nineteenth century
3) Advancing a thesis explaining why women’s status in Mexico City improved during the nineteenth century
4) Rejecting the thesis that the status of women in Mexico City during the nineteenth century actually improved

Multiple-Choice, Choose Single Answer Question #7

Biologists have long maintained that two groups of pinnipeds, sea lions and walruses, are descended from a terrestrial bearlike animal, whereas the remaining group, seals, shares an ancestor with weasels. But the recent discovery of detailed similarities in the skeletal structure of the flippers in all three groups undermines the attempt to explain away superficial resemblance as due to convergent evolution—the independent development of similarities between unrelated groups in response to similar environmental pressures. Flippers may indeed be a necessary response to aquatic life; turtles, whales, and dugongs also have them. But the common detailed design found among the pinnipeds probably indicates a common ancestor. Moreover, walruses and seals drive themselves through the water with thrusts of their hind flippers, but sea lions use their front flippers. If anatomical similarity in the flippers resulted from similar environmental pressures, as posited by the convergent evolution theory, one would expect walruses and seals, but not seals and sea lions, to have similar flippers.

According to the passage, it has been recently discovered that

1) there are detailed skeletal similarities in the flippers of pinnipeds
2) sea lions, seals, and walruses are all pinnipeds
3) pinnipeds are descended from animals that once lived on land
4) animals without common ancestors sometimes evolve in similar ways

Multiple-Choice, Choose Single Answer Question #8

In a recent study, David Cressy examines two central questions concerning English immigration to New England in the 1630’s: what kinds of people immigrated and why? Using contemporary literary evidence, shipping lists, and customs records, Cressy finds that most adult immigrants were skilled in farming or crafts, were literate, and were organized in families. Each of these characteristics sharply distinguishes the 21,000 people who left for New England in the 1630’s from most of the approximately 377,000 English people who had immigrating to America by 1700. With respect to their reasons for immigrating, Cressy does not deny the frequently noted fact that some of the immigrants of the 1630’s, most notably the organizers and clergy, advanced religious explanations for departure, but he finds that such explanations usually assumed primacy only in retrospect. When he moves beyond the principal actors, he finds that religious explanations were less frequently offered and he concludes that most people immigrated because they were recruited by promises of material improvement.

In the passage, the author is primarily concerned with

1) summarizing the findings of an investigation
2) analyzing a method of argument
3) evaluating a point of view
4) hypothesizing about a set of circumstances

Multiple-Choice, Choose Single Answer Question #9

Quantum mechanics is a highly successful theory: it supplies methods for accurately calculating the results of diverse experiments, especially with minute particles. The predictions of quantum mechanics, however, give only the probability of an event, not a deterministic statement of whether or not the event will occur. Because of this probabilism, Einstein remained strongly dissatisfied with the theory throughout his life, though he did not maintain that quantum mechanics is wrong. Rather, he held that it is incomplete: in quantum mechanics the motion of a particle must be described in terms of probabilities, he argued, only because some parameters that determine the motion have not been specified. If these hypothetical “hidden parameters” were known, a fully deterministic trajectory could be defined. Significantly, this hidden-parameter quantum theory leads to experimental predictions different from those of traditional quantum mechanics. Einstein’s ideas have been tested by experiments performed since his death, and as most of these experiments support traditional quantum mechanics, Einstein’s approach is almost certainly erroneous.

The author regards the idea that traditional quantum mechanics is incomplete with

1) approval
2) surprise
3) indifference
4) apprehension
5) skepticism

Multiple-Choice, Choose Single Answer Question #10

The 1960’s witnessed two profound social movements: the civil rights movement and the movement protesting the war in Vietnam. Although they overlapped in time, they were largely distinct. For a brief moment in 1967, however, it appeared that the two movements might unite under the leadership of Martin Luther King, Jr.King’s role in the antiwar movement appears to require little explanation, since he was the foremost advocate of nonviolence of his time. But King’s stance on the Vietnam War cannot be explained in terms of pacifism alone. After all, he was something of a latecomer to the antiwar movement, even though by 1965 he was convinced that the role of the United States in the war was indefensible. Why then the two years that passed before he translated his private misgivings into public dissent? Perhaps he believed that he could not criticize American foreign policy without endangering the support for civil rights that he had won from the federal government.

Which of the following best describes the passage?

1) It discusses an apparent inconsistency and suggests a reason for it.
2) It outlines a sequence of historical events.
3) It shows why a commonly held view is inaccurate.
4) It evaluates an explanation and finally accepts that explanation.

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