SSC CPO SI Paper-1 Mock Test 2026 – Free Practice Quiz with Answers (Set 16)

Welcome to SSC CPO SI Paper-1 Mock Test 2026 – Free Practice Quiz with Answers (Set 16), your comprehensive online practice test prepared specifically for government competitive exam aspirants. This SSC CPO SI mock test features 50 exam-standard multiple choice questions covering key topics with detailed solutions and answer explanations. Practicing mock quizzes regularly is the proven strategy to enhance your solving speed, eliminate exam anxiety, and master time management for high-stakes recruitment examinations.

Why Practice This SSC CPO SI Mock Test?

  • Latest Syllabus & Pattern: Every question strictly aligns with the updated syllabus and previous year exam trends for SSC CPO SI.
  • Multi-Subject Balance: Curated mix of Quantitative Aptitude, Logical Reasoning, General Awareness, and Language skills to simulate the actual paper.
  • Comprehensive Explanations: Step-by-step mathematical derivations and factual references provided for conceptual clarity.
  • 100% Free Access: Attempt online anytime, analyze weak areas, and monitor your score progression across our 120-part mock test series.

Exam Instructions & Marking Scheme

⏱ Recommended Duration: 60 minutes

📋 Total Questions: 50 Multiple Choice Questions (4 Options each)

⚖️ Marking Scheme: +2 for correct answer, -0.50 for incorrect answer

💡 Strategy Tip: Read each question carefully. Do not spend more than 60 seconds on any single question on the first pass. Mark doubtful questions for review.

SSC CPO SI Mock Test – 50 Practice Questions

  1. Q1. Which Article of the Constitution of India guarantees six fundamental freedoms including Freedom of Speech and Expression.

    (A) Article 19    (B) Article 15    (C) Article 44    (D) Article 51A

  2. Q2. What is the chemical formula for common household Bleaching Powder?

    (A) CaOCl2    (B) CaCO3    (C) CaSO4    (D) CaCl2

  3. Q3. In which year did the historic Jallianwala Bagh massacre take place in Amritsar?

    (A) 1919 (13th April)    (B) 1920    (C) 1918    (D) 1922

  4. Q4. A shopkeeper purchases an item for Rs 1000 and marks it up to sell at a profit of 20%. What is the selling price of the article?

    (A) Rs 1160    (B) Rs 1200    (C) Rs 1250    (D) Rs 1300

  5. Q5. If in a secret code language 'VICTORY' is written as 'WJDUPSZ', how will the word 'SUCCESS' be coded in that system?

    (A) TVDDFFT    (B) TVDDFTT    (C) TVDDETT    (D) TUDDFFT

  6. Q6. Which Article of the Constitution of India lays down the procedure for amending the Constitution by the Parliament.

    (A) Article 368    (B) Article 15    (C) Article 44    (D) Article 51A

  7. Q7. Which cell organelle contains digestive enzymes and is nicknamed the 'Suicide Bag of the Cell'?

    (A) Lysosome    (B) Mitochondria    (C) Ribosome    (D) Centrosome

  8. Q8. Give one word for: 'A person who loves and collects books passionately'

    (A) Bibliophile    (B) Philatelist    (C) Numismatist    (D) Polyglot

  9. Q9. A train of length 180 metres crosses a platform of length 160 metres in 24 seconds. What is the speed of the train in km/h?

    (A) 41 km/h    (B) 51 km/h    (C) 63 km/h    (D) 71 km/h

  10. Q10. In a class of 30 students standing in a single row, Aman is ranked 12th from the left end. What is his rank from the right end?

    (A) 17th    (B) 19th    (C) 21th    (D) 22th

  11. Q11. Which Article of the Constitution of India empowers the President of India to promulgate Ordinances during the recess of Parliament.

    (A) Article 123    (B) Article 15    (C) Article 44    (D) Article 51A

  12. Q12. What is the SI unit of electric potential difference (Voltage)?

    (A) Volt    (B) Ampere    (C) Watt    (D) Joule

  13. Q13. Select the correctly spelt word from the options:

    (A) Bureaucracy    (B) Beurocracy    (C) Bureaucrasy    (D) Burocracy

  14. Q14. Calculate the Simple Interest on a principal amount of Rs 7,000 invested at an annual interest rate of 8% for a duration of 3 years:

    (A) Rs 1,560    (B) Rs 1,680    (C) Rs 1,880    (D) Rs 2,030

  15. Q15. Find the missing term in the sequence: 5, 11, 23, 47, ?

    (A) 91    (B) 95    (C) 101    (D) 105

  16. Q16. Which Article of the Constitution of India protects Right to Life and Personal Liberty except according to procedure established by law.

    (A) Article 21    (B) Article 15    (C) Article 44    (D) Article 51A

  17. Q17. Which blood cells are responsible for carrying oxygen from the lungs to the body tissues?

    (A) Red Blood Cells (Erythrocytes)    (B) White Blood Cells    (C) Platelets    (D) Plasma

  18. Q18. Choose the word that is most opposite in meaning (Antonym) to 'METICULOUS':

    (A) Careless / Sloppy    (B) Accurate    (C) Diligent    (D) Cautious

  19. Q19. A shopkeeper purchases an item for Rs 1600 and marks it up to sell at a profit of 20%. What is the selling price of the article?

    (A) Rs 1880    (B) Rs 1920    (C) Rs 1970    (D) Rs 2020

  20. Q20. If in a secret code language 'VICTORY' is written as 'WJDUPSZ', how will the word 'SUCCESS' be coded in that system?

    (A) TVDDFFT    (B) TVDDFTT    (C) TVDDETT    (D) TUDDFFT

  21. Q21. Which Article of the Constitution of India guarantees Equality before Law and Equal Protection of the Laws within the territory of India.

    (A) Article 14    (B) Article 15    (C) Article 44    (D) Article 51A

  22. Q22. Which optical phenomenon is primarily responsible for the twinkling of stars in the night sky?

    (A) Atmospheric Refraction    (B) Total Internal Reflection    (C) Dispersion    (D) Scattering

  23. Q23. Who was the first Governor-General of independent India in 1947?

    (A) Lord Mountbatten    (B) C. Rajagopalachari    (C) Dr. Rajendra Prasad    (D) Jawaharlal Nehru

  24. Q24. A train of length 150 metres crosses a platform of length 160 metres in 20 seconds. What is the speed of the train in km/h?

    (A) 46 km/h    (B) 56 km/h    (C) 68 km/h    (D) 76 km/h

  25. Q25. In a class of 35 students standing in a single row, Aman is ranked 11th from the left end. What is his rank from the right end?

    (A) 23th    (B) 25th    (C) 27th    (D) 28th

  26. Q26. Which Article of the Constitution of India provides for the imposition of President's Rule in a State upon failure of constitutional machinery.

    (A) Article 356    (B) Article 15    (C) Article 44    (D) Article 51A

  27. Q27. Which metal is liquid at standard room temperature and pressure?

    (A) Mercury (Hg)    (B) Bromine    (C) Gallium    (D) Sodium

  28. Q28. Which international organization publishes the annual 'World Economic Outlook' report?

    (A) International Monetary Fund (IMF)    (B) World Bank    (C) WTO    (D) WEF

  29. Q29. Calculate the Simple Interest on a principal amount of Rs 6,000 invested at an annual interest rate of 8% for a duration of 3 years:

    (A) Rs 1,320    (B) Rs 1,440    (C) Rs 1,640    (D) Rs 1,790

  30. Q30. Find the missing term in the sequence: 2, 5, 11, 23, ?

    (A) 43    (B) 47    (C) 53    (D) 57

  31. Q31. Which Article of the Constitution of India empowers citizens to approach the Supreme Court directly for enforcement of Fundamental Rights.

    (A) Article 32    (B) Article 15    (C) Article 44    (D) Article 51A

  32. Q32. What is the chemical formula for common household Bleaching Powder?

    (A) CaOCl2    (B) CaCO3    (C) CaSO4    (D) CaCl2

  33. Q33. In which year did the historic Jallianwala Bagh massacre take place in Amritsar?

    (A) 1919 (13th April)    (B) 1920    (C) 1918    (D) 1922

  34. Q34. A shopkeeper purchases an item for Rs 1400 and marks it up to sell at a profit of 20%. What is the selling price of the article?

    (A) Rs 1640    (B) Rs 1680    (C) Rs 1730    (D) Rs 1780

  35. Q35. If in a secret code language 'VICTORY' is written as 'WJDUPSZ', how will the word 'SUCCESS' be coded in that system?

    (A) TVDDFFT    (B) TVDDFTT    (C) TVDDETT    (D) TUDDFFT

  36. Q36. Which Article of the Constitution of India guarantees six fundamental freedoms including Freedom of Speech and Expression.

    (A) Article 19    (B) Article 15    (C) Article 44    (D) Article 51A

  37. Q37. Which cell organelle contains digestive enzymes and is nicknamed the 'Suicide Bag of the Cell'?

    (A) Lysosome    (B) Mitochondria    (C) Ribosome    (D) Centrosome

  38. Q38. Give one word for: 'A person who loves and collects books passionately'

    (A) Bibliophile    (B) Philatelist    (C) Numismatist    (D) Polyglot

  39. Q39. A train of length 240 metres crosses a platform of length 160 metres in 32 seconds. What is the speed of the train in km/h?

    (A) 35 km/h    (B) 45 km/h    (C) 57 km/h    (D) 65 km/h

  40. Q40. In a class of 30 students standing in a single row, Aman is ranked 10th from the left end. What is his rank from the right end?

    (A) 19th    (B) 21th    (C) 23th    (D) 24th

  41. Q41. Which Article of the Constitution of India lays down the procedure for amending the Constitution by the Parliament.

    (A) Article 368    (B) Article 15    (C) Article 44    (D) Article 51A

  42. Q42. What is the SI unit of electric potential difference (Voltage)?

    (A) Volt    (B) Ampere    (C) Watt    (D) Joule

  43. Q43. Select the correctly spelt word from the options:

    (A) Bureaucracy    (B) Beurocracy    (C) Bureaucrasy    (D) Burocracy

  44. Q44. Calculate the Simple Interest on a principal amount of Rs 5,000 invested at an annual interest rate of 8% for a duration of 3 years:

    (A) Rs 1,080    (B) Rs 1,200    (C) Rs 1,400    (D) Rs 1,550

  45. Q45. Find the missing term in the sequence: 5, 11, 23, 47, ?

    (A) 91    (B) 95    (C) 101    (D) 105

  46. Q46. Which Article of the Constitution of India empowers the President of India to promulgate Ordinances during the recess of Parliament.

    (A) Article 123    (B) Article 15    (C) Article 44    (D) Article 51A

  47. Q47. Which blood cells are responsible for carrying oxygen from the lungs to the body tissues?

    (A) Red Blood Cells (Erythrocytes)    (B) White Blood Cells    (C) Platelets    (D) Plasma

  48. Q48. Choose the word that is most opposite in meaning (Antonym) to 'METICULOUS':

    (A) Careless / Sloppy    (B) Accurate    (C) Diligent    (D) Cautious

  49. Q49. A shopkeeper purchases an item for Rs 1200 and marks it up to sell at a profit of 20%. What is the selling price of the article?

    (A) Rs 1400    (B) Rs 1440    (C) Rs 1490    (D) Rs 1540

  50. Q50. If in a secret code language 'VICTORY' is written as 'WJDUPSZ', how will the word 'SUCCESS' be coded in that system?

    (A) TVDDFFT    (B) TVDDFTT    (C) TVDDETT    (D) TUDDFFT

Answer Key & Topic Breakdown

Q.No Correct Answer Subject / Topic Q.No Correct Answer Subject / Topic
1 (A) Article 19 Polity - Right to Freedom 26 (A) Article 356 Polity - State Emergency / President's Rule
2 (A) CaOCl2 General Science - Chemistry 27 (A) Mercury (Hg) General Science - Chemistry
3 (A) 1919 (13th April) History - Freedom Struggle 28 (A) International Monetary Fund (IMF) General Awareness - Global Bodies
4 (B) Rs 1200 Quant - Profit & Loss 29 (B) Rs 1,440 Quant - Simple Interest
5 (A) TVDDFFT Reasoning - Coding Decoding 30 (B) 47 Reasoning - Number Series
6 (A) Article 368 Polity - Constitutional Amendments 31 (A) Article 32 Polity - Right to Constitutional Remedies
7 (A) Lysosome General Science - Biology 32 (A) CaOCl2 General Science - Chemistry
8 (A) Bibliophile English - One Word Substitution 33 (A) 1919 (13th April) History - Freedom Struggle
9 (B) 51 km/h Quant - Speed, Time & Distance 34 (B) Rs 1680 Quant - Profit & Loss
10 (B) 19th Reasoning - Order & Ranking 35 (A) TVDDFFT Reasoning - Coding Decoding
11 (A) Article 123 Polity - President's Legislative Powers 36 (A) Article 19 Polity - Right to Freedom
12 (A) Volt General Science - Physics 37 (A) Lysosome General Science - Biology
13 (A) Bureaucracy English - Spelling Test 38 (A) Bibliophile English - One Word Substitution
14 (B) Rs 1,680 Quant - Simple Interest 39 (B) 45 km/h Quant - Speed, Time & Distance
15 (B) 95 Reasoning - Number Series 40 (B) 21th Reasoning - Order & Ranking
16 (A) Article 21 Polity - Protection of Life 41 (A) Article 368 Polity - Constitutional Amendments
17 (A) Red Blood Cells (Erythrocytes) General Science - Biology 42 (A) Volt General Science - Physics
18 (A) Careless / Sloppy English - Antonyms 43 (A) Bureaucracy English - Spelling Test
19 (B) Rs 1920 Quant - Profit & Loss 44 (B) Rs 1,200 Quant - Simple Interest
20 (A) TVDDFFT Reasoning - Coding Decoding 45 (B) 95 Reasoning - Number Series
21 (A) Article 14 Polity - Right to Equality 46 (A) Article 123 Polity - President's Legislative Powers
22 (A) Atmospheric Refraction General Science - Physics 47 (A) Red Blood Cells (Erythrocytes) General Science - Biology
23 (A) Lord Mountbatten History - Modern India 48 (A) Careless / Sloppy English - Antonyms
24 (B) 56 km/h Quant - Speed, Time & Distance 49 (B) Rs 1440 Quant - Profit & Loss
25 (B) 25th Reasoning - Order & Ranking 50 (A) TVDDFFT Reasoning - Coding Decoding

Detailed Solutions & Explanations

Q1 Explanation (Polity - Right to Freedom)

Article 19 guarantees six fundamental freedoms including Freedom of Speech and Expression.

Q2 Explanation (General Science - Chemistry)

Bleaching powder is Calcium Hypochlorite / Calcium Oxychloride (CaOCl2).

Q3 Explanation (History - Freedom Struggle)

The Jallianwala Bagh massacre occurred on 13 April 1919 under General Dyer.

Q4 Explanation (Quant - Profit & Loss)

Selling Price = Cost Price * (1 + Profit/100) = Rs 1000 * 1.20 = Rs 1200.

Q5 Explanation (Reasoning - Coding Decoding)

Each letter is shifted forward by +1: S->T, U->V, C->D, C->D, E->F, S->T, S->T -> TVDDFFT.

Q6 Explanation (Polity - Constitutional Amendments)

Article 368 lays down the procedure for amending the Constitution by the Parliament.

Q7 Explanation (General Science - Biology)

Lysosomes contain hydrolytic enzymes and break down waste materials, known as suicide bags.

Q8 Explanation (English - One Word Substitution)

A 'Bibliophile' is an enthusiastic lover or collector of books.

Q9 Explanation (Quant - Speed, Time & Distance)

Speed = Total Distance / Time = (180 + 160) / 24 = 14.17 m/s * (18/5) = 51 km/h.

Q10 Explanation (Reasoning - Order & Ranking)

Rank from Right = Total Students - Rank from Left + 1 = 30 - 12 + 1 = 19th.

Q11 Explanation (Polity - President's Legislative Powers)

Article 123 empowers the President of India to promulgate Ordinances during the recess of Parliament.

Q12 Explanation (General Science - Physics)

The SI unit of electric potential difference is Volt (V).

Q13 Explanation (English - Spelling Test)

'Bureaucracy' is correctly spelt as B-U-R-E-A-U-C-R-A-C-Y.

Q14 Explanation (Quant - Simple Interest)

Simple Interest = (P * R * T) / 100 = (7000 * 8 * 3) / 100 = Rs 1,680.

Q15 Explanation (Reasoning - Number Series)

Pattern: Multiply previous term by 2 and add 1 (x * 2 + 1). The next term is 95.

Q16 Explanation (Polity - Protection of Life)

Article 21 protects Right to Life and Personal Liberty except according to procedure established by law.

Q17 Explanation (General Science - Biology)

Erythrocytes contain hemoglobin, the iron-rich protein that binds and transports oxygen.

Q18 Explanation (English - Antonyms)

'Meticulous' means showing great attention to detail; its antonym is careless/sloppy.

Q19 Explanation (Quant - Profit & Loss)

Selling Price = Cost Price * (1 + Profit/100) = Rs 1600 * 1.20 = Rs 1920.

Q20 Explanation (Reasoning - Coding Decoding)

Each letter is shifted forward by +1: S->T, U->V, C->D, C->D, E->F, S->T, S->T -> TVDDFFT.

Frequently Asked Questions (FAQs)

1. Is this SSC CPO SI mock test completely free to attempt?

Yes, all mock tests in this 120-set series are 100% free with no registration or hidden fees required. You can practice as many times as you like and share the quiz with fellow aspirants.

2. How does practicing 50-question mock tests help in exam preparation?

Solving timed 50-question sets builds mental stamina, improves speed-accuracy ratio, and helps you identify specific chapters where you lose marks before attempting full-length papers.

3. How should I analyze my performance after completing this quiz?

First calculate your net score using the official negative marking scheme. Then review every incorrect answer and unattempted question in our explanation section to ensure you master the underlying concept.

4. What is the recommended time allocation for this 50-question paper?

For most Tier-1/Prelims exams, allocate roughly 30 to 45 seconds for General Awareness questions, 50 seconds for Reasoning, and 60 to 75 seconds for Quantitative Aptitude problems.

5. Where can I find more sets in this government exam mock test series?

You can navigate to the previous and next practice sets using the series links below to cover all major recruitment exams including SSC, Railways, UPSC, Banking, and State PSCs.

Share Your Score & Continue Your Preparation! 🏆

How many questions did you answer correctly? Post your score in the comments below to see where you stand among competitive aspirants across India!

👉 Next Practice Test: Mock Test Set 17

👈 Previous Practice Test: Mock Test Set 15

🖼️ Featured Image Alt Text: SSC CPO SI Paper-1 Mock Test 2026 – Free Practice Quiz with Answers (Set 16) with Answers and Explanations

🏷️ Suggested Blogger Labels: SSC CPO, Delhi Police SI, General Intelligence, Static GK, Quant

📌 Permalink / URL Slug: ssc-cpo-si-mock-test-2026-set-16