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Critical Reasoning Test 1

Description: Critical Reasoning Tests - Free Online Reasoning Tests for MBA Entrance, MCA Entrance, Bank PO, CDS, SSC, Law and Clerical Exams SBI Clerks Preparations, GK Online Preparation and Practice Tests
Number of Questions: 25
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Some historical forts that are considered landmarks have not been kept up sufficiently. We need to observe and appreciate these forts, for they have a lot to teach us about our past. Thus, we should do whatever we can to ensure we maintain at least the most precious of these landmarks, at least for the sake of History.

On which of the followig assumptions is the above argument based?

  1. If a historical fort is unique, its maintenance is of such importance that it justifies whatever cost is necessary to restore it.

  2. Maintaining a historical fort does not damage it in a way that destroys its historical value.

  3. Historical forts should be studied to provide information about living without modern amenities.

  4. We know what information historians would be interested in deriving from a historical fort.

  5. None of these


Correct Option: B
Explanation:

If maintaining a fort damaged its historical value, there would be no point in maintaining it.

The admission officers at Punjab College's Summer Political Science Seminar are offering special financial aid packages to applicants from the area, which score above the 90 percentile in a local competition. Applicants from other areas who score above the 90 percentile in the national competition will also be offered the package. The officers want to make sure that the applicants who are offered packages are the top scorers.

Which one of the following statements would serve to undermine the admission officers' intent?

  1. The highest scoring applicants can also apply to other seminars and choose not to attend the Punjab College's seminar.

  2. Competitions can be biased and therefore are the unfair measures of an applicant's potential performance.

  3. Those applicants scoring above the 90 percentile in the competition might be able to afford to attend the seminar without the financial aid package.

  4. Some of the applicants offered the financial aid package might have lower scores in the competition than some who are not offered packages.

  5. None of these


Correct Option: D
Explanation:

The admission officers want to offer the overall highest scorers the package, yet they are basing the scores on a national and local test. It is possible that the top 10 percent of the local people are not nearly as successful at the competition as the top half of the national people. But, the best among locals, who are not, in this instance, the top scorers, would still be offered the package.

Pal Shinde, a renowned stage actor and the founder of the Shinde's Acting Academy, trained countless actors, including dozens of National and Filmfare award winners, several Sahitya Academy award winners and hundreds of successful working actors. Clearly, the skills necessary for success in the profession of acting can be learned.

Which one of the following is an assumption upon which the argument is based?

  1. Pal Shinde's Academy attracted actors from all over the world.

  2. The actors who learned techniques from Pal Shinde were already known to be quite successful.

  3. One or more of the actors who learned acting techniques at Pal Shinde's Academy were not successful actors before arriving there.

  4. Actors who go on to be quite successful often come out of prestigious acting academies.

  5. None of these


Correct Option: C
Explanation:

To verify that this is a necessary assumption, use Negation Test. If all the actors were successful to begin with, then Pal Shinde would not have taught them anything, and the author could not reach the conclusion.

The Government usually tries to provide financial support to students seeking postgraduate degrees in areas of study seemed important to the National economy. However, one area of study has been under-funded for too long. On average, each Battle Tank purchased by the Government is bought at the expense of Postgraduate Studies in engineering programs for 250 students. Moreover, in the last three decades the number of postgraduate degrees in engineering awarded each year, has dwindled from 20,000 to only 10,000. Nevertheless, national grants to post graduate students of engineering have remained at ridiculously low levels. In fact, some colleges and universities grant more money to engineering students than does the national government.

Which of the following best expresses the main point of the argument?

  1. Battle Tanks are too expensive and alternative defensive systems should be found whenever possible.

  2. National grants to post graduate students of engineering should be increased.

  3. The national government, not colleges and universities, bear the responsibility for providing grants to post graduate students.

  4. The national government's financial support of engineering students has not been equitably distributed among different states.

  5. None of these


Correct Option: B
Explanation:

When you are asked to find the main point, make sure that the entire argument supports the choice you select. The whole argument is a case for the sad lack of funding for postgraduate engineering students.

A recent report that the prestigious software development firm Infoway Solutions is losing revenue due to a decrease in billable hours is greatly overstated. Admittedly, the Software Development department's share of the firm's billable hours fell from 70 percent last year to only 30 percent today. However, during the same time the intellectual property division realized an increase from 20 percent to 30 percent and the software maintenance development department has enjoyed an even greater increase, growing from 5 percent to 35 percent.

Which one of the following statements provides the best reason for why the above statistics, taken alone, do not adequately support the argument's conclusion?

  1. The accounting procedures used to calculate the number of billable hours for the Software Development department is different from that used by other departments.

  2. Regardless of the vacillations of Infoway Solution's overall billable hours, the total amount of all shares of total revenues will always equal 100 percent.

  3. An insufficient explanation is provided for why the share of billable hours changed for various departments of Infoway Solutions.

  4. The Software Development and Intellectual Property department both rely on the success of the firm's marketing department in order to maximize their number of billable hours.

  5. None of these


Correct Option: B
Explanation:

This argument makes a claim about total billable hours, but all the percentages it brings up are just parts of that whole, which tells us absolutely nothing about the total billable hours.

Recently, experienced scientists in public companies have resigned from their positions in record numbers to move to private companies. Therefore, experienced scientists who remain in public companies are now in high demand with those institutions.

Which one of the following, if true, most seriously challenges the claim made in the passage?

  1. Public companies prefer to hire scientists from their own state.

  2. Drastic cuts in funding for public companies, have led to elimination of many of the research posts previously held by the experienced researchers.

  3. Some scientists have to shift their field of study after moving to private companies.

  4. Public companies plan to train new scientists in an attempt to replace those who have moved to private companies.

  5. None of these


Correct Option: B
Explanation:

To weaken an argument, attack the assumption. The argument assumes that the demand for experienced scientists in public companies has not decreased, which would mean that the few who remain in the public companies are in great demand. This choice states that the demand has decreased.

A food product is considered nutritious if it meets two criteria. It must meet some BIS standard for fat content and it must not contribute to a vitamin deficiency. For instance, ice cream, which contains milk, does not contribute to a vitamin deficiency, but it does not meet BIS standards for fat content. Therefore, ice cream is not a nutritious food.

If all of the above statements are true, each of the following must also be true EXCEPT

  1. not contributing to a vitamin deficiency must be a criterion met by a nutritious food.

  2. manufacturers of ice cream are not concerned with the nutritional value of their product.

  3. ice cream contains nothing that would be a detrimental to vitamin intake.

  4. some foods that contain milk are not nutritious.

  5. none of these


Correct Option: B
Explanation:

From the argument it is impossible to tell whether ice cream manufacturers are concerned with the nutritional value of their product.

Numerous studies have indicated that the quality of education imparted in state universities is not uniform. Students are much more likely to receive a higher quality education in some universities than they will in others. Since the universities in the studies had approximately equal funding per student, discrepancies in the quality of education are probably a result of differences in the teaching ability of the faculty members.

Which one of the following, if true, constitutes the strongest criticism of the argument above?

  1. The faculty in some of the universities had earned a greater number of advanced degrees, overall, than the faculty in other universities.

  2. Student populations vary greatly in average ability and dedication from university to university.

  3. The average amount of time that faculty members devote to each course varies little from university to university.

  4. Virtually the same courses are offered in each of the universities included in the studies.

  5. None of these


Correct Option: B
Explanation:

To weaken an argument attack the assumption. In this argument, assumption is that nothing but per student funding and faculty could make a difference in their quality of education. This choice points out that the students themselves could influence quality of their education.

In 2002 major overhauls were performed on fifteen percent of roadway buses by transport companies that had been built in the 1990s and that remained in operation. However, only seven percent of the buses manufactured in the 1980s were overhauled.

Which one of the following, if true, best explains the lower percentage of overhauls for the 1980's?

  1. Government regulations require all buses, regardless of age, to pass an annual inspection.

  2. New buses tend to receive better care than do older ones.

  3. Transport companies are more likely to retire older buses than authorize the large expenditures usually required to repair them.

  4. Buses built in the 1980s had a much simpler design that made them less complex than the later ones.

  5. None of these


Correct Option: C
Explanation:

The correct answer choice will explain why a lower percentage of buses were overhauled from the 1980s than from the 1990s. This choice shows that the trains from the 1980s were more likely to be retired than overhauled.

Dinosaur fossils have been discovered in locations all over the earth, but the highest density of fossils has been found in areas, which have experienced few volcanic eruptions. The higher number of fossils discovered in stable regions can only be accounted for by the lack of destructive volcanic eruptions in those areas.

Which one of the following is a necessary presupposition of the argument above?

  1. A fossil that forms in the exact location of a previously formed fossil will eliminate the structure of the earlier fossil.

  2. The rate of volcanic eruptions within a given area varies greatly over time.

  3. The rate of fossil formation has dramatically increased recently.

  4. Fossil formations have been distributed fairly evenly over Earth during course of its history.

  5. None of these


Correct Option: D
Explanation:

The argument concludes that the reason for higher density of fossils in certain areas is that there has been less volcanic activity in those areas. This assumes that there is no alternate cause for the highest density of fossils being found in stable areas. Answer choice (D) confirms this assumption: fossil formations have been distributed evenly, so the difference in the number of fossils found is not due to an initial uneven distribution.

People who can afford private specialized medical treatment have lower death rates than those who must depend on treatment at Government Hospitals. This explains why people who are in high-paying professions, such as businessmen and Corporate employees, have lower death rates than the people who have low-paying jobs or who are unemployed.

Which of the following, if true, would strengthen the explanation offered above?

  1. Many people with low-paying jobs have Government Insurance coverage and can afford private specialized medical treatment.

  2. Many doctors in expensive specialties cannot perform emergency medical procedures.

  3. The number of deaths among people who have low-paying jobs is far greater than the number of deaths among people who are in high-paying professions.

  4. The rates of disease for people who have low-paying jobs are no greater than for people who are in high-paying professions.

  5. None of these


Correct Option: C
Explanation:

This strengthens the argument by saying that the rate of disease is same in both kinds of people. So, the affordability makes all the difference in lowering the death rate.

Two geologists, Dr. Sushma and Dr. Mitra, have a difference of opinion over the significance of finding Samsonite ore, dating back to the Pregregory era, embedded in a section of Mount Agnes. Dr. Sushma postulates that the presence of Samsonite must have been a result of tremendous volcanic activity in the region, since Samsonite is not indigenous to Agnes. However, since volcanic eruptions contain several other minerals, these too should have been present in the section, yet none were. As a result of this evidence, Dr. Mitra refuses to accept Dr. Sushma’s conclusion.

Which of the following casts the most doubt on Dr. Sushma’s conclusion?

  1. The Samsonite that came from volcanic eruptions actually came from several different volcanic eruptions.

  2. When glaciers in the area beyond Mount Agnes receded, they dragged with them various mineral ores, including Samsonite, for hundreds of kilometers.

  3. Samsonite ore that can be reliably dated back to an era before the Pregregory has been discovered at Mount Pin, over a thousand miles away from Mount Agnes.

  4. Due to natural erosion of the mountains, the original composition of the mountain cannot accurately be determined.

  5. None of these


Correct Option: B
Explanation:

Dr. Sushma’s point is that the Samsonite could only have come from volcanic activity, which assumes that there is no alternate explanation for its being there. To say it was actually dragged there by glaciers provides an alternate cause, which weakens the argument.

Directions: Read the following information carefully and answer the question given below. In an effort to deny criticism that the radiation emitted from a nuclear research plant poses a health hazard to the surrounding city, the research establishment which operates the facility issued a statement stating that “the level of radiation emitted from the facility is usually lower than that emitted during a chest X-Ray exposure.”

Which of the following, if true, would most weaken the facility's argument?

  1. Level of radiation produced by chest X-Ray exposures is higher than that of many other medical tests such MRI, CT Scan and household appliances such as television sets and computer display terminals.

  2. The amount of radiation that nearby colony residents are exposed to from the research plant is, over time, much greater than the amount of radiation they are exposed to from chest X-Ray exposures.
  3. The nuclear research plant is surrounded by a restricted access area, which is clearly marked and contains posted warnings about the potential radioactive hazard.

  4. Research indicates that the particular type of radiation emitted by the research plant takes longer to reach levels dangerous to human health than the type produced by chest X-Ray exposure.


Correct Option: B
Explanation:

To weaken an argument attack the assumption. This argument assumes that the amount and type of radiation emitted from the research plant and that emitted from chest X-Ray exposures are comparable. This choice shows that they are not comparable.

Directions: Read the following information carefully and answer the question given below.

The proposed plan to place limits on campaign funding for elections should be rejected. The organisations and politicians who have advocated this policy will never be satisfied with the proposed changes in rules. In fact, some supporters of campaign reforms have actually collected funds for future elections. One first time Member of Parliament, who, before his election, promised on being elected, to vigorously support campaign reform, has already voted against three different resolutions proposing various types of limits upon campaign funding. Other politicians, who have previously supported campaign reforms, did not actively demonstrate support for the proposed legislation during the last parliament session.

A critique of the above argument would point out that it does which one of the following?

  1. It avoids the issue by concentrating on those who may have actually acted in a manner that does not necessarily support his viewpoint.

  2. He assumes the conclusion to be true while presenting the premises.

  3. He chooses to use examples of only those individuals that support his viewpoint.

  4. he does not accurately present the proposal advocated by the politicians.

  5. None of these


Correct Option: A
Explanation:

The author asserts that the plan should be rejected because of the actions of the politicians, not because of the plan itself.

Ten years ago, limits were placed on the number of pets that could be kept per sector in Chandigarh because the government believed that overcrowding of animals was a threat to public safety. Population of pets in Chandigarh has increased by over 300 percent in the last decade. Pets are now continuously escaping from their owner's homes, causing damage to property, threatening children and endangering traffic. In addition, the rate of human illnesses such as rabies, which can only be caused by diseased pets, is also increasing. Clearly, new limits on pets per sector have not had their desired effect. In fact, these limits have caused a serious threat to public welfare.
The conclusion drawn from above would be most justified, if which one of the following was found to be true?

  1. In surrounding cities, which have no limits on pets per area, there has been no increase in the pet population.

  2. Traffic accidents and property damage caused by pets often results in injury to the pets.

  3. When pet population has a larger than optimal density, disease becomes widespread within the pets.

  4. Residents of the city often leave food outside for wild or runaway pets.


Correct Option: A
Explanation:

The point of the argument is that the pet laws caused this serious threat. For that to be true, it must be proved that places without such laws do not have these problems.

Two geologists, Dr. Sushma and Dr. Mitra, have a difference of opinion over the significance of finding Samsonite ore, dating back to the Pregregory era, embedded in a section of Mount Agnes. Dr. Sushma postulates that the presence of Samsonite must have been a result of tremendous volcanic activity in the region, since Samsonite is not indigenous to Agnes. However, since volcanic eruptions contain several other minerals, these too should have been present in the section, yet none were. As a result of this evidence, Dr. Mitra refuses to accept Dr. Sushma's conclusion.
The difference of opinion between the two geologists is based on which one of the following?
  1. The comparative importance of different aspects of the information.

  2. The assumption that Pregregory Samsonite is distinguishable from other minerals.

  3. The potential for using the information about the Samsonite to determine the other minerals indigenous to Mount Agnes.

  4. The presumption that the information from one geologic region is sufficient to confirm a conclusion.


Correct Option: A
Explanation:

The two doctors disagree over whether the presence of the Samsonite ore is more important than the absence of the other minerals that should have also been found.

Many aircraft maintenance and repair companies use sophisticated computer diagnostic techniques, in addition to actual physical inspections, in order to determine which repairs are necessary. Aircraft owners, like airlines, however, are reluctant to pay the extra costs involved for the computer tests, thereby decreasing the quality of service that they receive.

In order for the conclusion above to be valid, which one of the following is a necessary assumption?

  1. Physical inspections and expensive computer tests combined, provide a more accurate diagnosis of aircraft problems than do inspections alone.

  2. Many aircraft repair technicians oppose price cuts that limit their use of computer diagnostics.

  3. Many customers who could benefit from the computer tests cannot afford them.

  4. Some aircraft problems could be diagnosed by physical examination alone.

  5. None of these


Correct Option: A
Explanation:

This must be true for the argument to stand up. Quality of service the owners receive would decrease only if it is true that the addition of the computer test provides a more accurate diagnosis than do the inspections alone.

Directions: Read the following information carefully and answer the question given below.Aman: Dr. Venugopal, a research astronomer, has clearly shown that her theory concerning the determinants of Nebulas produces consistently precise predictions about how Nebulas will be affected by universal conditions. On the grounds of this evidence, Dr. Venugopal has stated that her theory is inarguably correct.

Nitin: Well, then Dr. Venugopal is not a respectable astronomer. Dr. Venugopal's evidence fails to prove absolutely that her theory is correct. Respectable astronomers consistently acknowledge the possibility that new data will prove that their hypothesis are incorrect. Which one of the following can be the most reasonably concluded from Nitin's argument?

  1. Dr. Venugopal's theory concerning the Nebulas can be disproved.

  2. Regardless of how respectable astronomers may be, they will never produce accurate hypothetical explanations.

  3. Astronomers who acknowledge the possibility that new data will disprove their hypothesis are respectable astronomers.

  4. Dr. Venugopal's theory concerning the Nebulas is irrefutable only for the present.

  5. None of these


Correct Option: B
Explanation:

Nitin states that respectable astronomers consistently acknowledge the possibility that new data will prove their theory incorrect and that this is why Dr. Venugopal is not a respectable astronomer.

Directions: Read the following information carefully and answer the question given below.The purpose of a socialist state is to provide support while fostering self-reliance. Member of Parliament Mr. K. Singh insists, however, that a socialist state that focuses on developing in an individual the qualities necessary for self-reliance will not provide government-funded assistance to that individual. K. Singh concludes that government-funded socialist programs for the poor not only place an unsupportable burden on the government, but also will not lead to true self-reliance on the part of the individual.

Which of the following is an assumption on which Member of Parliament K. Singh's argument is based?

  1. Most politicians have no commitment to the creation of a socialist state.

  2. Government-funded programs will never encourage true self-reliance because any individual who accepts external support cannot develop the qualities necessary for true self-reliance.

  3. The disbursement of state funds designated for self-help is based on a sliding scale contingent upon a broad definition of self-reliance.

  4. Once an individual becomes truly self-reliant, he or she will refuse to accept state assistance.

  5. None of these


Correct Option: B
Explanation:

K Singh assumes that the two things are mutually exclusive. The argument needs this choice to be true.

Directions: Read the following information carefully and answer the question given below.Most geographers are naturalists, but some biologists are also naturalists. Yet all naturalists have one thing in common: they all love nature.

Assuming that all statements above are true, which one of the following must also be true?

  1. All people who love nature are naturalists.

  2. Some people who love nature are not naturalists.

  3. Most people who love nature are geographers.

  4. Some people who love nature are biologists.

  5. None of these


Correct Option: D
Explanation:

Those biologists that are naturalists must love nature because all naturalists love nature.

Directions: Read the following information carefully and answer the question given below.

Employing nano-level technologies to “re-storage” existing computers ultimately promises a vast increase in memory storage capability and would affect the full range of data input. The strategy of employing these technologies can increase RAM memory capabilities by 80 percent and hard disk memory by at least 60 percent. The storage of a greater amount of memory would in turn allow computers to perform a greater number of functions.

Which one of the following conclusions can be properly drawn from the passage above?

  1. RAM memory is the most efficiency means of storing memory.

  2. Insufficient storage capacity is the result of RAM memory interfering with the hard disk memory.

  3. Twenty percent of current RAM memory is not considered sufficient.

  4. The employment of new computer technologies could allow computers to perform a greater number of functions.

Correct Option: D
Explanation:

The argument says that the technology would increase memory and that increased memory would allow computers to perform more functions.

Directions: Read the following information carefully and answer the question given below.

In an experiment, two to three year old children and their kindergarten teachers made paintings together using brushes, watercolors, and other tools. Each child-teacher pair used a brush that was substantially different from those used by the other child-teacher pairs, and each teacher repeated the word “brushes” each time her ward used it. However, when the children were called upon to point to all of the brushes among a group of tools that included several brushes, each child identified only the brushes that she had used.

Which one of the following can be properly inferred from the passage above?

  1. The children did not understand the function of brushes.

  2. No two children applied the word “brushes” to the same object.

  3. The children knew that all brushes generally have a similar shape.

  4. Each child could correctly identify only the tools that she had used.

  5. None of these


Correct Option: B
Explanation:

Each child used a different brush, and each selected only the brush she had used, when called to point to all the brushes. So, no two could have identified the same brush.

Directions: Read the following information carefully and answer the question given below. During the late 1980s and early 1990s, car manufacturers in India introduced a number of new and modern designs. Dramatically different in both appearance and engineering technology, these new models proved less safe than the larger, sturdier cars that had, until that time, dominated the market. Once on the road in significant number, these new models tended to get damaged extensively when involved in front end, rear-end and side collisions. As a direct consequence of the subsequent investigations, manufacturers discarded all the previous tenets of car safety. Thereafter, car manufacturers would rely on far more stringent use of the crash test.

Which one of the following statements can properly be inferred from the passage?

  1. Cars built before the late 1980s were built without stringent use of crash tests and therefore were hazardous to drive.

  2. The dramatically different appearance of the new models introduced in the late 1980s and early 1990s resulted in increased vulnerability to damage.

  3. Before the late 1980s the crash tests employed for testing new cars could not sufficiently ensure passenger safety in collisions.

  4. Only a more stringent use of crash tests could have prevented the spate of high damage in the new models of the late 1980s and early 1990s.

  5. None of these


Correct Option: C
Explanation:

The argument says that after the investigations, the industry would rely on far more stringent tests. Any crash tests done earlier than that did not sufficiently ensure safety in collisions.

Directions: Read the following information carefully and answer the question given below.

A car industry newsletter recently claimed that if the price of car engines were reduced by 25 percent, the retail price for cars, which utilise these engines, would undergo the same decrease in price.

Which of the following would a skeptic most likely point out about the car newsletter’s claim?

  1. Advances in engineering now allow car designers to achieve the same level of power while using smaller car engines.

  2. Advertising costs, marketing expenses and handling fees, none of which are linked to the price of car engines, make up a substantial portion of the retail price of cars.

  3. The car industry is an especially competitive field in which firms vying for business keep car prices low.

  4. Research indicates that the number of cars purchased, increases substantially after the retail price is reduced more than 30 percent.

  5. None of these


Correct Option: B
Explanation:

To weaken an argument, attack the assumption. The author is assuming that there is no other factor that would prevent an equivalent reduction in the retail price of cars. This choice shows other factors that need to be considered.

Directions: Read the following information carefully and answer the question given below.

Asbestos, a flame-resistant insulator used in the electrical processes, causes lung tumor in rats, but only when the rats are exposed to large quantities of its fibrous dust. To inhale a quantity of fibrous dust is equivalent to that inhaled by the rats in studies, a worker would have to work in the dust for 18 hours a day. Therefore, it is safe to use Asbestos in electrical processes.

In order for the conclusion that Asbestos is safe to use in electrical processes to be properly drawn, which one of the following must be true?

  1. Lung tumors from exposure to airborne substances develop more quickly in people than they do in rats.

  2. If all insulators that are used in electrical processes were tested, researchers would discover that some cause lung tumors in rats.

  3. Workers work in Asbestos fiber environment fewer than 18 hours a day.

  4. Workers and users are less likely to incur severe burn injuries when Asbestos is used in the electrical process.

  5. None of these


Correct Option: C
Explanation:

You are being asked to state the assumption. The only way this argument works is if workers work fewer than 18 hours a day.

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