Detailed Explanation
Q1. Which of the following is/are favourable conditions for the formation of tropical cyclones?
- Absence of the Coriolis force
- Large sea surface with temperature higher than 27° C
- Pre-existing weak low-pressure area
Select the correct answer from the following codes
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Correct answer: (c)
Explanation:
Tropical cyclones originate and intensify over warm tropical oceans. The conditions favourable for the formation and intensification of tropical storms are:
- Large sea surface with temperature higher than 27° C
- Presence of the Coriolis force
- Small variations in the vertical wind speed
- A pre-existing weak low-pressure area or low-level-cyclonic circulation
- Upper divergence above the sea level system.
Q2. Consider the following statements with reference to the Controller General of Accounts
- It is the principal advisor on Accounting matters to the Union Government.
- It is a constitutional body and derives its mandate from Article 150 of the constitution.
- It works under the Department of Economic Affairs, Ministry of Finance.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 1 only
(c) 2 and 3 only
(d) 1 and 2 only
Correct answer: (b)
Explanation:
Statement 2 is incorrect: The Office of CGA prepares monthly and annual analysis of expenditure, revenues, borrowings and various fiscal indicators for the Union Government. The Annual Appropriation Accounts (Civil) and Union Finance Accounts are submitted to Parliament under Article 150 of the Constitution.
While CAG is an independent constitutional body, CGA works under the Ministry of Finance and is not a constitutional or statutory body.
Statement 1 is correct and 3 is incorrect: Controller General of Accounts (CGA) in the Department of Expenditure, Ministry of Finance, is the Principal Accounting Adviser to the Government of India and is responsible for establishing and maintaining a technically sound Management Accounting System.
Q3. Which of the following will lead to Inflation in the market
(a) When banks increase the interest rate
(b) When government overspends on infrastructural projects
(c) When RBI issues new savings bonds in the market
(d) When the government issues new G-Secs.
Correct answer: (b)
Explanation:
Statement 1 is incorrect: When banking increases the interest rate, the loan takers will take less or no loan from it and thus reduce the money supply in the market and thus subsequently have no effect on inflation.
Statement 2 is correct: When government overspend on projects. It provides employment and thus increase the supply of money in the market.
Statement 3 is incorrect: When RBI issue new bonds in the market, it pulls out all the outstanding money from the market.
Statement 4 is incorrect: RBI issues bonds on behalf of the GOVERNMENT. It would have the same impact when RBI issues bonds.
Q4. Arrange the following Islands of the Indian Ocean from West to East:
- Seychelles
- Assumption Island
- Mauritius
- Diego Garcia
Select the correct answer using the code given below:
(a) 2-1-3-4
(b) 2-1-4-3
(c) 1-2-3-4
(d) 1-2-4-3
Correct answer: (a)
Explanation:
Q5. With reference to the ‘Sargasso Sea’, consider the following statements:
- It is a region in the North Atlantic Ocean.
- It is bounded on the west by the Gulf Stream.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct answer: (c)
Explanation:
Both statements are correct here: The Sargasso Sea is a region of the Atlantic Ocean bounded by four currents forming an ocean gyre.
The sea is bounded on the west by the Gulf Stream, on the north by the North Atlantic Current, on the east by the Canary Current, and on the south by the North Atlantic Equatorial Current.
Q6. Long March 5B Rocket, seen recently in the news, was launched by which country?
(a) Russia
(b) USA
(c) China
(d) Israel
Correct answer: (c)
Explanation:
The Long March rockets are a family of expendable launch system rockets operated by the China Aerospace Science and Technology Corporation.
Q7. Which of the following statements is the most appropriate reason for earthquake waves developing a shadow zone?
(a) The composition of material in the shadow zone is impermeable
(b) The body waves (p and s waves) are deflected from the path when they pass from one medium to another.
(c) Secondary waves do not pass through the liquid medium (outer core)
(d) Both (b) and (c)
Correct answer: (d)
Explanation:
The layering of Earth has been inferred indirectly using the time of travel of refracted and reflected seismic waves created by earthquakes. The changes in seismic velocity between different layers cause refraction owing to Snell's law, like light bending as it passes through a prism. Secondary waves (S-waves) are shear waves that are transverse in nature. S-waves can travel only through solids, as fluids (liquids and gases) do not support shear stresses. S-wave shadow zone forms the boundary of the outer core as it is in the liquid state.
Q8. Which of the following statements with respect to the Kigali Amendment to Montreal Protocol National is/are correct?
- It puts a complete prohibition on the member countries from using Hydrofluorocarbons.
- India ratified the Kigali Amendment.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct answer: (b)
Explanation:
Statement 1 is Incorrect: Under the Kigali Amendment, Parties to the Montreal Protocol will phase down production and consumption of Hydrofluorocarbons, commonly known as HFCs.
Q9. Consider the following statements regarding the characteristics of Terrestrial Planets.
- The terrestrial planets were formed in the close vicinity of the parent star, where it was too warm for gases to condense into solid particles.
- The terrestrial planets are smaller than Jovian planets, and their higher gravity could hold the escaping gases.
Choose the correct statement.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct answer: (a)
Explanation:
The first four planets are called Terrestrial, meaning earth-like, as they are made up of rock and metals and have relatively high densities. The rest four are called Jovian or Gas Giant planets. Jovian means Jupiter-like. Most of them are much larger than the terrestrial planets and have a thick atmosphere, mostly of helium and hydrogen.
(i) The terrestrial planets were formed in the close vicinity of the parent star, where it was too warm for gases to condense into solid particles. Jovian planets were formed at quite a distant location.
(ii) The solar wind was most intense nearer the sun, so it blew off lots of gas and dust from the terrestrial planets. The solar winds were not all that intense to cause similar removal of gases from the Jovian planets.
(iii) The terrestrial planets are smaller, and their lower gravity could not hold the escaping gases
Q10. With reference to the Powers and Functions of the Chief Minister in India, consider the following statements:
- He allocates and reshuffles the portfolios among ministers.
- He can make rules for more convenient transactions of the business of a state government.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Correct answer: (a)
Explanation:
Statement 2 is incorrect: The Governor makes rules for more convenient transactions of the business of a state government.
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CSAT Questions and Solutions
Q11. A bag contains 50 P, 25 P and 10 P coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type respectively.
(a) 360, 160, 200
(b) 160, 360, 200
(c) 200, 360, 160
(d) 200, 160, 300
Correct answer: (c)
Explanation:
Let the ratio be x. Hence no. of coins be 5x ,9x , 4x respectively
Now given total amount = Rs. 206
=> (.50)(5x) + (.25)(9x) + (.10)(4x) = 206 we get x = 40
=> No. of 50p coins = 5x = 200
=> No. of 25p coins = 9x= 360
=> No. of 10p coins = 4x = 160
Q12. There are three languages represented by three circles. The numbers given represent the number of people who speak those languages. Study the following figure carefully and answer the question given below.
What is the number of people who speak at most one language?
(a) 650
(b) 355
(c) 415
(d) 625
Correct answer: (c)
Explanation:
Number of people who speak at most one language = a + b + c + None
= 110 + 50 + 195 + 60 = 415
Q13. The average salary of all the employees in a small organization is Rs 8,000. The average salary of 7 technicians is Rs 12,000, and the average salary of the rest is Rs 6,000. The total number of employees in the organisation is?
(a) 25
(b) 26
(c) 20
(d) 21
Correct answer: (d)
Explanation:
Let total number of employees be k
Then, 8000 x k = 7 x 12000 + (k - 7) x 6000
k = 21
Thus, the total number of employees in the organization is 21.
Q14. The question given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
Question: In a cricket team, the average age of eleven players is 28 years. What is the age of the captain?
- The captain is eleven years older than the youngest player.
- The average age of 10 players, other than the captain, is 27.3 years.
- Leaving aside the captain and the youngest player, the average ages of three groups of three players each are 25 years, 28 years and 30 years, respectively.
Select correct answer
(a) Any two of the three
(b) All I, II and III
(c) II only or I and III only
(d) II and III only
Correct answer: (c)
Explanation:
Total age of 11 players = (28 x 11) years = 308 years.
I. C = Y + 11 C - Y = 11 .... (i)
II. Total age of 10 players (excluding captain) = (27.3 x 10) years = 273 years.
Age of captain = (308 - 273) years = 35 years. Thus, C = 35. .... (ii)
From (i) and (ii), we get Y = 24
III. Total age of 9 players = [ (25 x 3) + (28 x 3) + (30 x 3)] years = 249 years.
C + Y = (308 - 249) = 59 .... (iii)
From (i) and (iii), we get C = 35.
Thus, II alone gives the answer.
Also, I and III together give the answer. Correct answer is (C).
Q15. A rectangular courtyard 3.78 meters long and 5.25 meters wide is to be paved exactly with square tiles, all of the same sizes. what is the largest size of the tile which could be used for the purpose?
(a) 14 cm
(b) 21 cm
(c) 42 cm
(d) None of the above
Correct answer: (b)
Explanation:
3.78 meters =378 cm = 2 × 3 × 3 × 3 × 7
5.25 meters=525 cm = 5 × 5 × 3 × 7
Hence common factors are 3 and 7
Hence LCM = 3 × 7 = 21
Hence the largest size of square tiles that can be paved exactly with square tiles is 21cm.
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