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OPSC OAS Prelims Paper 2 Mock Test - 5 - OPSC OCS (Odisha) MCQ


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30 Questions MCQ Test OPSC OAS Mock Test Series 2025 - OPSC OAS Prelims Paper 2 Mock Test - 5

OPSC OAS Prelims Paper 2 Mock Test - 5 for OPSC OCS (Odisha) 2025 is part of OPSC OAS Mock Test Series 2025 preparation. The OPSC OAS Prelims Paper 2 Mock Test - 5 questions and answers have been prepared according to the OPSC OCS (Odisha) exam syllabus.The OPSC OAS Prelims Paper 2 Mock Test - 5 MCQs are made for OPSC OCS (Odisha) 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for OPSC OAS Prelims Paper 2 Mock Test - 5 below.
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OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 1

If Q means 'add to', J means 'multiply by', T means 'subtract from' and K means 'divide by' then 40 K 4 Q 5 J 2 T 6 =?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 1
Using Correct Symbols, we have

Given expression = 40 / 4 + 5 x 2 - 6 = 10 + 10 - 6 = 14

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 2

Excluding stoppages, the speed of a train is 60 km/h and including stoppages the speed of the train is 50 km/h. For how much time does the train stops per hour?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 2
Due to stoppages, train covers 10 km less.

Time taken to cover 10 km

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 3

One-way governments can decrease air pollution is to impose a tax on industrial carbon dioxide emissions. But why should governments consider a carbon tax when they could control emissions by establishing energy efficiency and conservation standards, by legislating against coal use, or by increasing investment in nuclear? The great virtue of such a tax is that it would provide incentives for industry to achieve emission reductions. Because oil emits more carbon dioxide per unit of energy generated than does natural gas, and coal more than oil, a carbon tax would vary with the type of fuel. Such a tax would induce industry to substitute less-polluting fuels for those carrying a higher tax and also to reduce the total use of energy.

Q. Which one of the following circumstances would most seriously undermine the conclusion “Such a tax would induce industry to substitute less- polluting fuels for those carrying a higher tax”

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 3
From the passage it can be inferred that author mentioned that such a tax would induce industry to substitute less-polluting fuels for those carrying a higher tax because author thinks that the fuel taxed the highest costs considerably less to buy than fuel for those carrying higher tax.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 4

"Popular art" has a number of meanings, impossible to define with any precision, which range from folklore to junk. The poles are clear enough, but the middle tends to blur. The Hollywood Western of the 1930‘s, for example, has elements of folklore, but is closer to junk than to high art or folk art. The case of Giuseppe Verdi is an interesting one: he took a popular genre, bourgeois melodrama set to music and, without altering its fundamental nature, transmuted it into high art. This remains one of the greatest achievements in music, and one that cannot be fully appreciated without recognizing the essential trashiness of the genre. As an example of such a transmutation, consider what Verdi made of the typical political elements of nineteenth-century opera. Generally, in the plots of these operas, a hero or heroine— usually portrayed only as an individual, unfettered by class—is caught between the immoral corruption of the aristocracy and the doctrinaire rigidity or secret greed of the leaders of the proletariat. Verdi transforms this naive and unlikely formulation with music of extraordinary energy and rhythmic vitality, music more subtle than it seems at first hearing. There are scenes and arias that still sound like calls to arms and were clearly understood as such when they were first performed. Such pieces lend an immediacy to the otherwise veiled political message of these operas and call up feelings beyond those of the opera itself. Or consider Verdi’s treatment of character. Before Verdi, there were rarely any characters at all in musical drama, only a series of situations which allowed the singers to express a series of emotional states. Any attempt to find coherent psychological portrayal in these operas is misplaced ingenuity. The only coherence was the singer’s vocal technique.

Q. According to the passage, the immediacy of the political message in Verdi’s operas stems from the

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 4
In the passage it is mentioned that "Verdi transforms this naive and unlikely formulation with music of extraordinary energy and rhythmic vitality, music more subtle than it seems at first hearing.” Implies that the immediacy of the political message in Verdi’s operas stems from the vitality and subtlety of the music.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 5

"Popular art" has a number of meanings, impossible to define with any precision, which range from folklore to junk. The poles are clear enough, but the middle tends to blur. The Hollywood Western of the 1930‘s, for example, has elements of folklore, but is closer to junk than to high art or folk art. The case of Giuseppe Verdi is an interesting one: he took a popular genre, bourgeois melodrama set to music and, without altering its fundamental nature, transmuted it into high art. This remains one of the greatest achievements in music, and one that cannot be fully appreciated without recognizing the essential trashiness of the genre. As an example of such a transmutation, consider what Verdi made of the typical political elements of nineteenth-century opera. Generally, in the plots of these operas, a hero or heroine— usually portrayed only as an individual, unfettered by class—is caught between the immoral corruption of the aristocracy and the doctrinaire rigidity or secret greed of the leaders of the proletariat. Verdi transforms this naive and unlikely formulation with music of extraordinary energy and rhythmic vitality, music more subtle than it seems at first hearing. There are scenes and arias that still sound like calls to arms and were clearly understood as such when they were first performed. Such pieces lend an immediacy to the otherwise veiled political message of these operas and call up feelings beyond those of the opera itself. Or consider Verdi’s treatment of character. Before Verdi, there were rarely any characters at all in musical drama, only a series of situations which allowed the singers to express a series of emotional states. Any attempt to find coherent psychological portrayal in these operas is misplaced ingenuity. The only coherence was the singer’s vocal technique.

Q. According to the passage, all of the following characterize musical drama before Verdi EXCEPT:

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 5
In the passage it is mentioned that "Before Verdi, there were rarely any characters at all in musical drama” implies that before Verdimusic was not used for the purpose of defining a character.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 6

"Popular art" has a number of meanings, impossible to define with any precision, which range from folklore to junk. The poles are clear enough, but the middle tends to blur. The Hollywood Western of the 1930‘s, for example, has elements of folklore, but is closer to junk than to high art or folk art. The case of Giuseppe Verdi is an interesting one: he took a popular genre, bourgeois melodrama set to music and, without altering its fundamental nature, transmuted it into high art. This remains one of the greatest achievements in music, and one that cannot be fully appreciated without recognizing the essential trashiness of the genre. As an example of such a transmutation, consider what Verdi made of the typical political elements of nineteenth-century opera. Generally, in the plots of these operas, a hero or heroine— usually portrayed only as an individual, unfettered by class—is caught between the immoral corruption of the aristocracy and the doctrinaire rigidity or secret greed of the leaders of the proletariat. Verdi transforms this naive and unlikely formulation with music of extraordinary energy and rhythmic vitality, music more subtle than it seems at first hearing. There are scenes and arias that still sound like calls to arms and were clearly understood as such when they were first performed. Such pieces lend an immediacy to the otherwise veiled political message of these operas and call up feelings beyond those of the opera itself. Or consider Verdi’s treatment of character. Before Verdi, there were rarely any characters at all in musical drama, only a series of situations which allowed the singers to express a series of emotional states. Any attempt to find coherent psychological portrayal in these operas is misplaced ingenuity. The only coherence was the singer’s vocal technique.

Q. It can be inferred that the author regards the independence from social class of the heroes and heroines of nineteenth- century opera as

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 6
from the passage it can be concluded that according to the author the independence from social class of the heroes and heroines of nineteenth-century opera is a plot convention with no real connection to political reality.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 7

Although pathogenic organisms constantly alight on the skin, they find it a very unfavourable environment and, in the absence of injury, have great difficulty colonizing it. This "self-sterilizing" capacity of the skin results from the tendency of all well-developed ecosystems toward homeostasis, or the maintenance of the status quo. Species that typically live in

soil, water, and elsewhere rarely multiply on the skin. Undamaged skin is also unfavourable to most human pathogens. The skin is too acid and too arid for some species. The constant shedding of the surface skin layers further hinders the establishment of invaders. The most interesting defence mechanism, however, results from the metabolic activities of the resident flora. Unsaturated fatty acids, an important component of the lipids in sebum collected from the skin surface, inhibit the growth of several bacterial and fungal cutaneous pathogens. These acids are a metabolic product of certain gram-positive members of the cutaneous community, which break down the more complex lipids in freshly secreted sebum.

Q. The primary purpose of the passage is to

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 7
From the passage it can be concluded that the purpose of the passage is to describe mechanisms by which the skin protects itself against pathogens

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 8

Although pathogenic organisms constantly alight on the skin, they find it a very unfavourable environment and, in the absence of injury, have great difficulty colonizing it. This "self-sterilizing" capacity of the skin results from the tendency of all well-developed ecosystems toward homeostasis, or the maintenance of the status quo. Species that typically live in

soil, water, and elsewhere rarely multiply on the skin. Undamaged skin is also unfavourable to most human pathogens. The skin is too acid and too arid for some species. The constant shedding of the surface skin layers further hinders the establishment of invaders. The most interesting defence mechanism, however, results from the metabolic activities of the resident flora. Unsaturated fatty acids, an important component of the lipids in sebum collected from the skin surface, inhibit the growth of several bacterial and fungal cutaneous pathogens. These acids are a metabolic product of certain gram-positive members of the cutaneous community, which break down the more complex lipids in freshly secreted sebum.

Q. The "resident flora” mentioned refer to

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 8
From the passage it can be inferred that by residual flora author implies certain gram positive members of the cutaneous community

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 9

Directions : Symbols %, #, $, © are used with different meanings as explained below:

1. ‘P @ Q’ means ‘P is not greater than Q’.

2. ‘P % Q’ means ‘P is neither greater than nor equal to Q’.

3. ‘P # Q’ means ‘P is neither smaller than nor equal to Q’.

4. ‘P $ Q’ means ‘P is neither smaller than nor greater than Q’.

5. ‘P © Q’ means ‘P is not smaller than Q’.

Q. Three statements showing relationships have been given, which are followed by two conclusions (1) and (2). Assuming that the given statements are true, find out which conclusions(s) is/are definitely true.

Statements: W @ V, V # X, Y © V.

Conclusions:

  1. X % Y

  2. X $ W

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 9

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 10

Read the following information carefully and answer the questions that follow—

A, B, C, D, E and F are six students procuring their Master’s Degree in six different subjects—Data science, Finance, Criminal Justice, Fine arts, Economics and Music.

  • Two of them stay in hostel, two stay as paying guest (PG) and the remaining two stay at their home.

  • C does not stay as PG and studies Fine Arts.

  • The students studying Economics and Finance do not stay as PG.

  • E studies Music and D studies, Criminal Justice. F and D stay in Hostel. E stays as PG and B stays at home.

Q. Who studies Data science?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 10

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 11

Read the following information carefully and answer the questions that follow—

A, B, C, D, E and F are six students procuring their Master’s Degree in six different subjects—Data science, Finance, Criminal Justice, Fine arts, Economics and Music.

  • Two of them stay in hostel, two stay as paying guest (PG) and the remaining two stay at their home.

  • C does not stay as PG and studies Fine Arts.

  • The students studying Economics and Finance do not stay as PG.

  • E studies Music and D studies, Criminal Justice. F and D stay in Hostel. E stays as PG and B stays at home.

Q. Which of the following combination of subjects and place of stay is not correct?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 11

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 12

Read the following information carefully and answer the questions that follow—

A, B, C, D, E and F are six students procuring their Master’s Degree in six different subjects—Data science, Finance, Criminal Justice, Fine arts, Economics and Music.

  • Two of them stay in hostel, two stay as paying guest (PG) and the remaining two stay at their home.

  • C does not stay as PG and studies Fine Arts.

  • The students studying Economics and Finance do not stay as PG.

  • E studies Music and D studies, Criminal Justice. F and D stay in Hostel. E stays as PG and B stays at home.

Q. Which of the following pairs of students stay one each at hostel and at home?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 12

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 13

Read the following information carefully and answer the questions that follow—

A, B, C, D, E and F are six students procuring their Master’s Degree in six different subjects—Data science, Finance, Criminal Justice, Fine arts, Economics and Music.

  • Two of them stay in hostel, two stay as paying guest (PG) and the remaining two stay at their home.

  • C does not stay as PG and studies Fine Arts.

  • The students studying Economics and Finance do not stay as PG.

  • E studies Music and D studies, Criminal Justice. F and D stay in Hostel. E stays as PG and B stays at home.

Q. Which subject does B study?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 13

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 14

For some time, scientists have believed that cholesterol plays a major role in heart disease because people with familial hypercholesterolemia, a genetic defect, have six to eight times the normal level of cholesterol in their blood and they invariably develop heart disease. Scientists also noticed that people with familial hypercholesterolemia appear to produce more LDL’s (low-density lipoproteins) than normal individuals. However, scientists wondered, could a genetic mutation that causes a slowdown in the removal of LDL’s from the blood also result in an increase in the synthesis of this cholesterol-carrying protein? Since scientists could not experiment on human body tissue, their knowledge of familial hypercholesterolemia was severely limited. However, a breakthrough came in the laboratories of Yoshio Watanabe of Kobe University in Japan in 1980. Watanabe noticed that a male rabbit in his colony had ten times the normal concentration of cholesterol in its blood. By appropriate breeding, Watanabe obtained a strain of rabbits that had very high cholesterol levels. These rabbits spontaneously developed heart disease. To his surprise, Watanabe further found that the rabbits, like humans with familial hypercholesterolemia, lacked LDL receptors. What scientists learned by studying the Watanabe rabbits is that the removal of the VLDL (very low-density lipoproteins) remnant requires the LDL receptor. Normally, the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded. In the Watanabe rabbit, due to a lack of LDL receptors on liver cells, the VLDL remnants remain in the blood and are eventually converted to LDL’s. The LDL receptors thus have a dual effect in controlling LDL levels. They are necessary to prevent over synthesis of LDL’s from VLDL remnants and they are necessary for the normal removal of LDL’s from the blood.

Q. The passage supplies information to answer which of the following questions?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 14
From the sentence "Normally, the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded. ” passage supplies information about the answer of "Where in the body are VLDL remnants degraded.”.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 15

For some time, scientists have believed that cholesterol plays a major role in heart disease because people with familial hypercholesterolemia, a genetic defect, have six to eight times the normal level of cholesterol in their blood and they invariably develop heart disease. Scientists also noticed that people with familial hypercholesterolemia appear to produce more LDL’s (low-density lipoproteins) than normal individuals. However, scientists wondered, could a genetic mutation that causes a slowdown in the removal of LDL’s from the blood also result in an increase in the synthesis of this cholesterol-carrying protein? Since scientists could not experiment on human body tissue, their knowledge of familial hypercholesterolemia was severely limited. However, a breakthrough came in the laboratories of Yoshio Watanabe of Kobe University in Japan in 1980. Watanabe noticed that a male rabbit in his colony had ten times the normal concentration of cholesterol in its blood. By appropriate breeding, Watanabe obtained a strain of rabbits that had very high cholesterol levels. These rabbits spontaneously developed heart disease. To his surprise, Watanabe further found that the rabbits, like humans with familial hypercholesterolemia, lacked LDL receptors. What scientists learned by studying the Watanabe rabbits is that the removal of the VLDL (very low-density lipoproteins) remnant requires the LDL receptor. Normally, the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded. In the Watanabe rabbit, due to a lack of LDL receptors on liver cells, the VLDL remnants remain in the blood and are eventually converted to LDL’s. The LDL receptors thus have a dual effect in controlling LDL levels. They are necessary to prevent over synthesis of LDL’s from VLDL remnants and they are necessary for the normal removal of LDL’s from the blood.

Q. According to the passage, by studying the Watanabe rabbits’ scientists learned that

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 15
In the passage it is mentioned that "What scientists learned by studying the Watanabe rabbits is that the removal of the VLDL (very low-density lipoproteins) remnant requires the LDL receptor. Normally, the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded.”

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 16

For some time, scientists have believed that cholesterol plays a major role in heart disease because people with familial hypercholesterolemia, a genetic defect, have six to eight times the normal level of cholesterol in their blood and they invariably develop heart disease. Scientists also noticed that people with familial hypercholesterolemia appear to produce more LDL’s (low-density lipoproteins) than normal individuals. However, scientists wondered, could a genetic mutation that causes a slowdown in the removal of LDL’s from the blood also result in an increase in the synthesis of this cholesterol-carrying protein? Since scientists could not experiment on human body tissue, their knowledge of familial hypercholesterolemia was severely limited. However, a breakthrough came in the laboratories of Yoshio Watanabe of Kobe University in Japan in 1980. Watanabe noticed that a male rabbit in his colony had ten times the normal concentration of cholesterol in its blood. By appropriate breeding, Watanabe obtained a strain of rabbits that had very high cholesterol levels. These rabbits spontaneously developed heart disease. To his surprise, Watanabe further found that the rabbits, like humans with familial hypercholesterolemia, lacked LDL receptors. What scientists learned by studying the Watanabe rabbits is that the removal of the VLDL (very low-density lipoproteins) remnant requires the LDL receptor. Normally, the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded. In the Watanabe rabbit, due to a lack of LDL receptors on liver cells, the VLDL remnants remain in the blood and are eventually converted to LDL’s. The LDL receptors thus have a dual effect in controlling LDL levels. They are necessary to prevent over synthesis of LDL’s from VLDL remnants and they are necessary for the normal removal of LDL’s from the blood.

Q. The passage implies that Watanabe rabbits differ from normal rabbits in which of the following ways?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 16
In the passage it is mentioned that “Watanabe further found that the rabbits, like humans with familial hypercholesterolemia, lacked LDL receptors.” Implies Watanabe rabbit’s blood contains more VLDL remnants than does the blood of normal rabbits.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 17

"I want to criticize the social system, and to show it at work, at its most intense." Virginia Woolf’s provocative statement about her intentions in writing Mrs. Dalloway has regularly been ignored by the critics, since it highlights an aspect of her literary interests very different from the traditional picture of the "poetic” novelist concerned with examining states of reverie and vision and with following the intricate pathways of individual consciousness. In her novels, Woolf is deeply engaged by the questions of how individuals are shaped (or

deformed) by their social environments, how historical forces impinge on people’s lives, how class, wealth, and gender help to determine people’s fates. Most of her novels are rooted in a realistically rendered social setting and in a precise historical time.Woolf’s focus on society has not been generally recognized because of her intense antipathy to propaganda in art. The pictures of reformers in her novels are usually satiric or sharply critical.Woolf detested what she called "preaching" in fiction, too, and criticized novelist D. H. Lawrence (among others) for working by this method. Woolf’s own social criticism is expressed in the language of observation rather than in direct commentary, since for her, fiction is a contemplative, not an active art. Woolf’s literary models were acute social observers like Chekhov and Chaucer. As she put it in The Common Reader, "It is safe to say that not a single law has been framed or one stone set upon another because of anything Chaucer said or wrote; and yet, as we read him, we are absorbing morality at every pore."

Q. It can be inferred from the passage that Woolf chose Chaucer as a literary model because she believed that

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 17
In the passage it is mentioned that “It is safe to say that not a single law has been framed or one stone set upon another because of anything Chaucer said or wrote; and yet, as we read him, we are absorbing morality at every pore. ” Implies that Woolf chose Chaucer as a literary model because she believed that Chaucer’s writing was greatly, if subtly, effective in influencing the moral attitudes of his readers.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 18

"I want to criticize the social system, and to show it at work, at its most intense." Virginia Woolf’s provocative statement about her intentions in writing Mrs. Dalloway has regularly been ignored by the critics, since it highlights an aspect of her literary interests very different from the traditional picture of the "poetic” novelist concerned with examining states of reverie and vision and with following the intricate pathways of individual consciousness. In her novels, Woolf is deeply engaged by the questions of how individuals are shaped (or

deformed) by their social environments, how historical forces impinge on people’s lives, how class, wealth, and gender help to determine people’s fates. Most of her novels are rooted in a realistically rendered social setting and in a precise historical time.Woolf’s focus on society has not been generally recognized because of her intense antipathy to propaganda in art. The pictures of reformers in her novels are usually satiric or sharply critical.Woolf detested what she called "preaching" in fiction, too, and criticized novelist D. H. Lawrence (among others) for working by this method. Woolf’s own social criticism is expressed in the language of observation rather than in direct commentary, since for her, fiction is a contemplative, not an active art. Woolf’s literary models were acute social observers like Chekhov and Chaucer. As she put it in The Common Reader, "It is safe to say that not a single law has been framed or one stone set upon another because of anything Chaucer said or wrote; and yet, as we read him, we are absorbing morality at every pore."

Q. It can be inferred from the passage that the most probable reason Woolf realistically described the social setting in the majority of her novels was that she

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 18
In the passage it is mentioned that “Woolf is deeply engaged by the questions of how individuals are shaped (or deformed) by their social environments, how historical forces impinge on people’s lives, how class, wealth, and gender help to determine people’s fates. Most of her novels are rooted in a realistically rendered social setting and in a precise historical time.” Implies that she was interested in the effect of a person’s social milieu on his or her character and actions.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 19

A father is six times as old as his son and the mother is five times as old as the son. Let the age of son be "x" then the sum of the father's and the mother's age is [(x - 1)2 - 1] years. What is the age of the son?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 19

Given, the age of son is “x”

So, the age of father’s and mother’s be 6x and 5x respectively.

So, according to the question,

= 5x + 6x = [(x - 1)2 - 1]

⇒ 11x = x2 + 1 - 2x - 1

⇒ x2 = 13x

⇒ x = 13

So, the age of the son is 13 years

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 20

The ratio of milk and water in a mixture of 24 liters is 1:1. How much water must be added to the mixture so that the ratio of milk and water be 1:2?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 20
The quantity of milk in the original mixture

Quantity of water = 24-12= 12

Let quantity of water added = x

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 21

If 4+9= 18, 5+8=20 and 5+6 =15, then the value of 8+112=?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 21

Let's look at the given operations and try to find a pattern:
4+9 = 18
5+8 = 20
5+6 = 15

It seems like the first number is being multiplied by the second number, and then the result is divided by 2:
(4 * 9) / 2 = 18
(5 * 8) / 2 = 20
(5 * 6) / 2 = 15

Now let's use the same pattern to find the value of 8+112:
(8 * 112) / 2 = 896 / 2 = 448
So, the value of 8+112 is 448 (option B).

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 22

Correct the given equations by interchanging the two signs (10 - 14 ÷ 7 x 3 + 4 = 20)

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 22

Interchange of sign + and x makes the equation into 10 – 14 ÷ 7 + 3 x 4 = 10 - 2 + 3 × 4 = 20. Hence, option (b) is the correct answer.

 

 

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 23

Directions: Eight persons M, N, O, P, Q, R, S and T are standing in such a way that O is 20 m apart from N towards West, N is 30 m South with respect to M. M is 40 m towards West with respect to Q. P is 50 m towards South with respect to Q. R is 15 m apart from S towards North. T is 20 m towards East with respect to S. R is 40 m towards West with respect to P.

Q. In which direction is Q standing with respect to R?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 23

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 24

Directions: Eight persons M, N, O, P, Q, R, S and T are standing in such a way that O is 20 m apart from N towards West, N is 30 m South with respect to M. M is 40 m towards West with respect to Q. P is 50 m towards South with respect to Q. R is 15 m apart from S towards North. T is 20 m towards East with respect to S. R is 40 m towards West with respect to P.

Q. If one more person U is standing towards South-West with respect to P, then in which direction is T, standing with respect to U?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 24

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 25

Directions: Eight persons M, N, O, P, Q, R, S and T are standing in such a way that O is 20 m apart from N towards West, N is 30 m South with respect to M. M is 40 m towards West with respect to Q. P is 50 m towards South with respect to Q. R is 15 m apart from S towards North. T is 20 m towards East with respect to S. R is 40 m towards West with respect to P.

Q. What is the direction of O with respect to S?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 25
Firstly, draw diagram according to the given information.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 26

Statement: Most of those who study in premier medical colleges in India migrate to Russia for better prospects in their professional pursuits.

Courses of Action:

All the students joining these colleges should be asked to sign a bond at the time of admission to the effect that they will remain in India at least for ten years after they complete education.

All those students who desire to settle in Russia should be asked to pay entire cost of their education which the government subsidies.

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 26
Clearly, no student can be bound to live and work in the country against his wish. So, 1 does not follow. However, it is quite right to recover the extra benefits awarded to students if they do not serve their own country. So, 2 follows.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 27

The Bombay High Court stumped India’s most powerful sporting body, BCCI, by ordering it to move the cash cow IPL out of the drought-stricken Maharashtra. The court orders struck a chord among many, including die-hard cricket fans. The stark contrast between parched lands and dry throats of rural and semi-urban Maharashtra and the manufactured euphoria around water-guzzling cricket pitches did shake people’s conscience. The arguments in the court captured the latent and at times, simmering unease in the public mind over the degeneration of cricket from a sport to a money-spinner and worse.

Moreover, cricket, another colonial gift, had become the de facto national sport, crushing hockey and all other sports under its pitch rollers. On top of it, the mighty cricket board, perceived to be a hub of myriad commercial and political vested interests, became a law unto itself.

Q. What does the term ‘cash cow’ mean in the passage?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 27
Cash cow is business jargon for a business venture that generates a steady return of profits that far exceed the outlay of cash required to acquire or start it.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 28

The Bombay High Court stumped India’s most powerful sporting body, BCCI, by ordering it to move the cash cow IPL out of the drought-stricken Maharashtra. The court orders struck a chord among many, including die-hard cricket fans. The stark contrast between parched lands and dry throats of rural and semi-urban Maharashtra and the manufactured euphoria around water-guzzling cricket pitches did shake people’s conscience. The arguments in the court captured the latent and at times, simmering unease in the public mind over the degeneration of cricket from a sport to a money-spinner and worse.

Moreover, cricket, another colonial gift, had become the de facto national sport, crushing hockey and all other sports under its pitch rollers. On top of it, the mighty cricket board, perceived to be a hub of myriad commercial and political vested interests, became a law unto itself.

Q. The Bombay High Court mainly ordered not to conduct the IPL matches in Maharashtra because of:

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 28
The first line of the passage clearly indicates that the Bombay High Court mainly ordered not to conduct the IPL matches in Maharashtra because of present drought situation in Maharashtra.

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 29

The Bombay High Court stumped India’s most powerful sporting body, BCCI, by ordering it to move the cash cow IPL out of the drought-stricken Maharashtra. The court orders struck a chord among many, including die-hard cricket fans. The stark contrast between parched lands and dry throats of rural and semi-urban Maharashtra and the manufactured euphoria around water-guzzling cricket pitches did shake people’s conscience. The arguments in the court captured the latent and at times, simmering unease in the public mind over the degeneration of cricket from a sport to a money-spinner and worse.

Moreover, cricket, another colonial gift, had become the de facto national sport, crushing hockey and all other sports under its pitch rollers. On top of it, the mighty cricket board, perceived to be a hub of myriad commercial and political vested interests, became a law unto itself.

Q. Why does the author mean by referring cricket as the ‘de facto national sport’ in the passage?

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 29
In the second last line of the passage, the author clearly states that cricket, another colonial gift, had become the de facto national sport, crushing hockey and all other sports under its pitch rollers

OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 30

Smartphone is the essential digital gadgets that teenagers nowadays have. However, despite the convenience it brings to use, sometimes it might affect our daily life in a negative sense. One of the typical examples is the overuse of Smartphone. Smart phone can easily get our attention and distracts us. People, especially students, therefore are easily overusing the Smartphone. The distraction lower students’ productivity and takes their time. It also lowers the quality of the work done.

Q. Which of the following can be inferred from the passage?

  1. Parent mustn’t allow their children to use Smart phones.

  2. Overuse of Smartphones distract teenagers

  3. For children Laptop is more useful gadget than Smartphone

  4. Smart phone is more hazardous than convenience for student.

Detailed Solution for OPSC OAS Prelims Paper 2 Mock Test - 5 - Question 30
In the given passage author didn’t mention anything about (1), (3) and (4) while statement (2) can be inferred.

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