Civil Services Preliminary Examination – 2024 Answer Key - General Studies Paper-I - Test Booklet Series A - Lead IAS

Sep 20, 2026

Uploaded by Aria

Civil Services Preliminary Examination 2024 provides answer keys for General Studies Paper-I across multiple test booklet series (A through D), listing correct options for questions numbered 1 to 100. Explanatory notes clarify select correct choices related to hydrogels, parasitoids, and US Treasury bond or government debt backing, including controlled drug delivery use, host-dependent development, and unconditional repayment commitment. The document consolidates series-wise responses for quick verification while referencing the rationale for specific marked questions.

LanguageEnglish

CategoryExam

FormatPDF

Pages8

Reading Time20 min

AccessFree to download

Answer Key Overview

Test Booklet Series A

Test Booklet Series B

Test Booklet Series C

Test Booklet Series D

Rationale for Selected Questions

Civil Services Preliminary Examination – 2024 Answer Key-General Studies Paper-I Test Booklet Series A | 1 | D | 51 | D | | --- | --- | --- | --- | | 2 | A | 52 | C | | 3 | D | 53 | D | | 4 | A | 54 | B | | 5 | C | 55 | B | | 6 | B | 56 | A | | 7 | A | 57 | B | | 8 | B | 58 | B | | 9 | B | 59 | A | | 10 | B | 60 | C | | 11 | A | 61 | D | | 12 | A | 62 | A | | 13 | D | 63 | C | | 14 | C | 64 | C | | 15 | D | 65 | B | | 16 | B | 66 | D | | 17 | D | 67 | A | | 18 | B | 68 | C | | 19 | C | 69 | D | | 20 | C | 70 | A | | 21 | C | 71 | D | | 22 | A | 72 | A | | 23 | D | 73 | B | | 24 | A | 74 | D | | 25 | A | 75 | C | | 26 | A | 76 | D | | 27 | D | 77 | D | | 28 | A | 78 | C | | 29 | C | 79 | A | | 30 | A | 80 | C | | 31 | A | 81 | C | | 32 | D | 82 | D | | 33 | A | 83 | C | | 34 | B | 84 | B | | 35 | D | 85 | B | | 36 | B | 86 | D | | 37 | D | 87 | B | | 38 | C | 88 | A | | 39 | D | 89 | C | | 40 | C | 90 | D | | 41 | D | 91 | A | | 42 | C | 92 | D | | 43 | D | 93 | A | | 44 | D | 94 | B | | 45 | B | 95 | C | | 46 | C | 96 | C | | 47 | B | 97 | D | | 48 | C | 98 | D | | 49 | D | 99 | B | | 50 | A | 100 | C | The questions in "bold" are questions on hydrogels, parasitoid, and US Treasury bonds. Among the options, hydrogels are widely used for controlled drug delivery inpatients and in mobile air conditioning systems. But the use of hydrogels in the preparation of industrial lubricants is not that common. In the last few years, UPSC has only taken the most probable options. That's why weare taking B as the correct answer. Parasitoids are small insects whose immature stages develop either within or attached to the outside of other insects, referred to as hosts. Centipedes lay their eggs in the hollows of rotting logs or in the soil, and termites lay their eggs deep inside their nest. Also, there is not much data supporting the idea that these two organisms are parasitoids. That's why we are taking the answer B. The US government debt is backed by the faith of the government. It ensures an unconditional guarantee or commitment to repay the interest and principal of the debt. So incase of default, the people may have a right to claim their debts, and we were unable to find any arguments against this. So weare taking the first option as incorrect and option D as the correct answer. Civil Services Preliminary Examination – 2024 Answer Key-General Studies Paper-I Test Booklet Series B | 1 | D | 51 | A | | --- | --- | --- | --- | | 2 | C | 52 | D | | 3 | D | 53 | A | | 4 | D | 54 | B | | 5 | B | 55 | C | | 6 | C | 56 | C | | 7 | B | 57 | D | | 8 | C | 58 | D | | 9 | D | 59 | B | | 10 | A | 60 | B | | 11 | A | 61 | C | | 12 | D | 62 | D | | 13 | A | 63 | C | | 14 | B | 64 | B | | 15 | D | 65 | B | | 16 | B | 66 | D | | 17 | D | 67 | B | | 18 | C | 68 | A | | 19 | D | 69 | C | | 20 | C | 70 | D | | 21 | A | 71 | D | | 22 | A | 72 | A | | 23 | D | 73 | C | | 24 | C | 74 | C | | 25 | D | 75 | B | | 26 | B | 76 | D | | 27 | D | 77 | A | | 28 | B | 78 | C | | 29 | C | 79 | D | | 30 | C | 80 | A | | 31 | D | 81 | D | | 32 | A | 82 | C | | 33 | D | 83 | D | | 34 | A | 84 | B | | 35 | C | 85 | B | | 36 | B | 86 | A | | 37 | A | 87 | B | | 38 | B | 88 | B | | 39 | B | 89 | A | | 40 | B | 90 | C | | 41 | C | 91 | D | | 42 | A | 92 | A | | 43 | D | 93 | B | | 44 | A | 94 | D | | 45 | A | 95 | C | | 46 | A | 96 | D | | 47 | D | 97 | D | | 48 | A | 98 | C | | 49 | C | 99 | A | | 50 | A | 100 | C | Civil Services Preliminary Examination – 2024 Answer Key-General Studies Paper-I Test Booklet Series C | 1 | A | 51 | D | | --- | --- | --- | --- | | 2 | D | 52 | C | | 3 | A | 53 | D | | 4 | B | 54 | D | | 5 | C | 55 | B | | 6 | C | 56 | C | | 7 | D | 57 | B | | 8 | D | 58 | C | | 9 | B | 59 | D | | 10 | B | 60 | A | | 11 | C | 61 | A | | 12 | D | 62 | D | | 13 | C | 63 | A | | 14 | B | 64 | B | | 15 | B | 65 | D | | 16 | D | 66 | B | | 17 | B | 67 | D | | 18 | A | 68 | C | | 19 | C | 69 | D | | 20 | D | 70 | C | | 21 | D | 71 | C | | 22

FAQs

What does the document provide for the UPSC CSE Preliminary Examination 2024?

It provides the answer key for General Studies Paper-I, listing correct options for questions 1 to 100 for multiple test booklet series (A to D).

Which specific topics are discussed in the explanations for marked questions?

The explanations cover hydrogels, parasitoids, and US government debt backed by the government’s commitment to repay interest and principal.

How are the answer choices organized in the answer key?

For each test booklet series, the answers are shown in a two-column mapping of question numbers to options (A/B/C/D) from 1 to 100.

Sep 20, 2026

Uploaded by Aria