Mock Test 3 — IB ACIO Tier 1 Pattern (100 MCQs)

This full-length mock test replicates the IB ACIO Tier 1 pattern: 20 questions each from Current Affairs/Static GK, General Studies, Numerical Aptitude, Reasoning, and English Language. Suggested time limit: 60 minutes.

Section A: Current Affairs & Static GK (20 Questions)

1. The Reserve Bank of India was established in the year:
   (a) 1935 (b) 1947 (c) 1950 (d) 1969
2. The headquarters of the Reserve Bank of India is located in:
   (a) Mumbai (b) New Delhi (c) Kolkata (d) Chennai
3. India's Election Commission is a body established under Article:
   (a) 324 (b) 148 (c) 315 (d) 370
4. The Comptroller and Auditor General of India functions under Article:
   (a) 148 (b) 324 (c) 315 (d) 356
5. The Fundamental Rights of Indian citizens are enshrined in Part:
   (a) III of the Constitution (b) IV of the Constitution (c) IV-A of the Constitution (d) V of the Constitution
6. The Directive Principles of State Policy are contained in Part:
   (a) IV of the Constitution (b) III of the Constitution (c) IV-A of the Constitution (d) VI of the Constitution
7. The Fundamental Duties were added to the Constitution by the:
   (a) 42nd Amendment (b) 44th Amendment (c) 73rd Amendment (d) 1st Amendment
8. India's national game, though not formally declared by statute, is widely considered to be:
   (a) Field hockey (b) Cricket (c) Football (d) Kabaddi
9. India's highest civilian award is the:
   (a) Bharat Ratna (b) Padma Vibhushan (c) Padma Bhushan (d) Padma Shri
10. The Nobel Peace Prize is awarded from:
    (a) Oslo (b) Stockholm (c) Geneva (d) New York
11. Other Nobel Prizes (Physics, Chemistry, Medicine, Literature, Economics) are awarded from:
    (a) Stockholm (b) Oslo (c) Geneva (d) Vienna
12. The Unified Payments Interface (UPI) was developed by the:
    (a) National Payments Corporation of India (b) Reserve Bank of India directly (c) State Bank of India directly (d) Ministry of Finance directly
13. The Pradhan Mantri Jan Dhan Yojana primarily aims at:
    (a) Universal financial inclusion (b) Universal internet access (c) Universal railway access (d) Universal postal access
14. SEBI, which regulates India's securities markets, was given statutory powers in the year:
    (a) 1992 (b) 1988 (c) 1935 (d) 1950
15. The Insurance Regulatory and Development Authority of India is abbreviated as:
    (a) IRDAI (b) SEBI (c) PFRDA (d) RBI
16. World Environment Day is observed annually on:
    (a) 5 June (b) 5 September (c) 21 June (d) 14 November
17. International Day of Yoga is observed on:
    (a) 21 June (b) 5 June (c) 2 October (d) 26 January
18. The Sundarbans mangrove forest is shared between India and:
    (a) Bangladesh (b) Myanmar (c) Nepal (d) Bhutan
19. The IB ACIO examination's Tier 1 negative marking scheme deducts, per wrong answer:
    (a) ¼ mark (b) ½ mark (c) 1 full mark (d) No negative marking is applied
20. As of August 2026, the current affairs and office-holder facts in this book have been verified as current to:
    (a) August 2026 (b) January 2020 (c) December 2015 (d) March 2010

Section B: General Studies — History, Polity, Geography, Economy, Science (20 Questions)

21. The Constituent Assembly adopted the Constitution of India on:
    (a) 26 November 1949 (b) 26 January 1950 (c) 15 August 1947 (d) 2 October 1949
22. Dr. B.R. Ambedkar is widely regarded as the chief architect of the:
    (a) Constitution of India (b) Indian National Congress (c) Indian Railways (d) Reserve Bank of India
23. The Quit India Movement was launched in the year:
    (a) 1942 (b) 1930 (c) 1920 (d) 1947
24. The Non-Cooperation Movement was launched by Mahatma Gandhi in:
    (a) 1920 (b) 1930 (c) 1942 (d) 1919
25. The Jallianwala Bagh massacre took place in the year:
    (a) 1919 (b) 1920 (c) 1930 (d) 1942
26. The Indian National Congress was founded in the year:
    (a) 1885 (b) 1905 (c) 1920 (d) 1947
27. The longest river flowing entirely within India (by many measures) is the:
    (a) Godavari (b) Brahmaputra (c) Indus (d) Yamuna
28. The Thar Desert is located primarily in the Indian state of:
    (a) Rajasthan (b) Gujarat (c) Punjab (d) Haryana
29. Mount Kangchenjunga, one of the highest peaks substantially within India, lies on the border with:
    (a) Nepal (b) Bhutan (c) China (d) Myanmar
30. India's Parliament consists of the President and two houses, namely:
    (a) The Lok Sabha and the Rajya Sabha (b) The Lok Sabha and the Vidhan Sabha (c) The Rajya Sabha and the Vidhan Parishad (d) The Vidhan Sabha and the Vidhan Parishad
31. Money bills, under the Indian Constitution, can only be introduced in the:
    (a) Lok Sabha (b) Rajya Sabha (c) Either house with equal priority (d) State legislatures exclusively
32. GDP (Gross Domestic Product) measures the total value of goods and services produced within a country's:
    (a) Geographic boundaries, over a specific period (b) Citizens' overseas earnings exclusively, with no domestic component (c) Government budget alone, with no relation to the broader economy (d) Stock market alone, with no relation to production
33. Inflation refers to a sustained increase in the general:
    (a) Price level of goods and services in an economy (b) Population of a country (c) Rainfall levels across a region (d) Number of registered companies
34. The Wholesale Price Index (WPI) and Consumer Price Index (CPI) are both measures used to track:
    (a) Inflation (b) Population growth (c) Literacy rates (d) Railway punctuality
35. Photosynthesis, the process by which green plants produce food, primarily occurs in a cell structure called the:
    (a) Chloroplast (b) Mitochondria (c) Nucleus (d) Ribosome
36. The powerhouse of the cell, responsible for producing energy (ATP), is the:
    (a) Mitochondria (b) Chloroplast (c) Nucleus (d) Golgi apparatus
37. Newton's First Law of Motion is also known as the law of:
    (a) Inertia (b) Action-reaction (c) Conservation of energy (d) Gravitation
38. The chemical symbol for gold is:
    (a) Au (b) Ag (c) Fe (d) Gd
39. The chemical symbol for sodium is:
    (a) Na (b) So (c) S (d) N
40. The SI unit of electric current is the:
    (a) Ampere (b) Volt (c) Ohm (d) Watt

Section C: Numerical Aptitude (20 Questions)

41. If a train 150 m long crosses a platform 250 m long in 20 seconds, its speed is:
    (a) 72 km/h (b) 54 km/h (c) 60 km/h (d) 45 km/h
42. Two trains moving toward each other at 60 km/h and 40 km/h will approach each other at a combined speed of:
    (a) 100 km/h (b) 20 km/h (c) 2400 km/h (d) 60 km/h
43. A boat's speed in still water is 10 km/h, and the current's speed is 2 km/h; the boat's downstream speed is:
    (a) 12 km/h (b) 8 km/h (c) 20 km/h (d) 5 km/h
44. If A can complete a task in 10 days and B can complete it in 15 days, working together they complete it in:
    (a) 6 days (b) 12.5 days (c) 25 days (d) 5 days
45. The simple interest on ₹10,000 at 5% per annum for 2 years is:
    (a) ₹1,000 (b) ₹500 (c) ₹1,500 (d) ₹2,000
46. The compound interest on ₹10,000 at 10% per annum for 2 years (compounded annually) is:
    (a) ₹2,100 (b) ₹2,000 (c) ₹1,000 (d) ₹2,200
47. If two numbers are in the ratio 3:5 and their sum is 64, the smaller number is:
    (a) 24 (b) 40 (c) 20 (d) 30
48. The average of 10, 20, 30, 40, and 50 is:
    (a) 30 (b) 25 (c) 35 (d) 40
49. A person buys an item for ₹800 and sells it for ₹1,000; the profit percentage is:
    (a) 25% (b) 20% (c) 12.5% (d) 30%
50. If 20% of a number is 50, the number is:
    (a) 250 (b) 100 (c) 150 (d) 200
51. The next number in the series 2, 6, 12, 20, 30, ... is:
    (a) 42 (b) 40 (c) 36 (d) 44
52. The next number in the series 3, 9, 27, 81, ... is:
    (a) 243 (b) 162 (c) 108 (d) 324
53. In a mixture, milk and water are in the ratio 4:1; if 10 litres of the mixture contains milk equal to:
    (a) 8 litres (b) 6 litres (c) 5 litres (d) 2 litres
54. A sum of money doubles itself in 8 years at simple interest; the rate of interest per annum is:
    (a) 12.5% (b) 10% (c) 8% (d) 25%
55. If the cost price and selling price of an item are equal, the profit/loss is:
    (a) Zero (neither profit nor loss) (b) A profit equal to the cost price (c) A loss equal to the selling price (d) Undefined
56. A car covers 240 km in 4 hours; its average speed is:
    (a) 60 km/h (b) 40 km/h (c) 80 km/h (d) 50 km/h
57. If 5 workers can complete a job in 12 days, 10 workers (at the same rate) would complete it in:
    (a) 6 days (b) 24 days (c) 3 days (d) 10 days
58. The LCM of 4 and 6 is:
    (a) 12 (b) 24 (c) 10 (d) 2
59. The HCF (GCD) of 12 and 18 is:
    (a) 6 (b) 3 (c) 36 (d) 2
60. A discount of 20% on a marked price of ₹500 gives a selling price of:
    (a) ₹400 (b) ₹480 (c) ₹450 (d) ₹380

Section D: Reasoning and Logical Aptitude (20 Questions)

61. In a certain code, if "CAT" is written as "DBU," then "DOG" is written as:
    (a) EPH (b) EPI (c) FQH (d) DPH
62. If all roses are flowers, and some flowers fade quickly, then it necessarily follows that:
    (a) Some flowers that fade quickly may or may not be roses (b) All roses fade quickly (c) No roses fade quickly (d) All flowers are roses
63. Find the odd one out: Apple, Banana, Carrot, Mango
    (a) Carrot (a vegetable, the rest are fruits) (b) Apple (c) Banana (d) Mango
64. If today is Wednesday, what day will it be after 15 days?
    (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
65. A is the father of B; B is the sister of C; C is the son of D. D is related to A as:
    (a) Wife (assuming standard family roles) (b) Sister (c) Mother (d) Daughter
66. Statement: "All pens are pencils. Some pencils are erasers." Conclusion: "Some pens are erasers." This conclusion is:
    (a) Not necessarily true (does not necessarily follow) (b) Definitely true (c) Definitely false (d) Cannot be evaluated
67. In a row of persons, A is 5th from the left and 10th from the right; the total number of persons in the row is:
    (a) 14 (b) 15 (c) 16 (d) 13
68. Find the next term: 1, 4, 9, 16, 25, ...
    (a) 36 (b) 30 (c) 32 (d) 49
69. If North becomes East, East becomes South, and so on (each direction rotated 90° clockwise), then West becomes:
    (a) North (b) South (c) East (d) West itself, unchanged
70. Pointing to a photograph, a man says, "She is the daughter of my grandfather's only son." The woman in the photo is the man's:
    (a) Sister (b) Mother (c) Aunt (d) Daughter
71. Find the missing number in the series: 5, 10, 20, 40, __
    (a) 80 (b) 60 (c) 70 (d) 45
72. A is taller than B; B is taller than C; C is taller than D. Who is the shortest?
    (a) D (b) A (c) B (d) C
73. In a certain code, "BOOK" is written as "CPPL." Following the same code, "PAGE" is written as:
    (a) QBHF (b) QBGF (c) QAGF (d) PBHF
74. If Monday falls on the 1st of a month, what day falls on the 15th?
    (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
75. Choose the word that is different from the others: Triangle, Square, Circle, Cube
    (a) Cube (a 3D shape, the rest are 2D shapes) (b) Triangle (c) Square (d) Circle
76. A clock shows 3:15; the angle between the hour and minute hands at this time is approximately:
    (a) 7.5° (b) 90° (c) 0° (d) 180°
77. If "5 # 3 = 25" and "7 # 2 = 49" following a defined pattern (first number squared), then "4 # 6" equals:
    (a) 16 (b) 24 (c) 36 (d) 10
78. In a group of 5 people, A sits to the immediate left of B, and C sits to the immediate right of B; the arrangement A-B-C represents:
    (a) A sequential seating with A left of B and C right of B (b) A random, unrelated seating with no defined order (c) A seating where A and C are adjacent to each other directly (d) A seating with no relation between any of the three
79. If "P is the brother of Q" and "Q is the sister of R," then P and R are:
    (a) Siblings (brother and sibling, gender of R unspecified) (b) Definitely unrelated (c) Definitely husband and wife (d) Definitely parent and child
80. Complete the analogy: Doctor is to Hospital as Teacher is to:
    (a) School (b) Hospital (c) Court (d) Factory

Section E: English Language (20 Questions)

81. Choose the correctly spelled word:
    (a) Necessary (b) Neccessary (c) Necesary (d) Neccesary
82. Choose the synonym of "Abundant":
    (a) Plentiful (b) Scarce (c) Rare (d) Limited
83. Choose the antonym of "Ancient":
    (a) Modern (b) Old (c) Historic (d) Traditional
84. Fill in the blank: "She has been living in Delhi ___ 2015."
    (a) Since (b) For (c) From (d) At
85. Identify the correctly punctuated sentence:
    (a) "I bought apples, oranges, and bananas." (b) "I bought apples oranges, and bananas." (c) "I bought, apples oranges and bananas." (d) "I bought apples oranges and, bananas."
86. Choose the correct passive voice: "She writes a letter."
    (a) A letter is written by her (b) A letter was written by her (c) A letter has been written by her (d) A letter will be written by her
87. Choose the one-word substitute for "a person who cannot read or write":
    (a) Illiterate (b) Literate (c) Erudite (d) Scholarly
88. Identify the error in: "Neither of the boys were present."
    (a) "were" should be "was," since "neither" is singular (b) "boys" should be "boy," since "neither" refers to only one (c) "present" should be "presence," with no relation to "neither" (d) There is no error in this sentence
89. Choose the correct meaning of the idiom "to spill the beans":
    (a) To reveal a secret (b) To cook a meal quickly (c) To waste food carelessly (d) To argue over a trivial matter
90. Fill in the blank with the correct preposition: "He is good ___ mathematics."
    (a) At (b) In (c) On (d) With
91. Choose the plural form of "child":
    (a) Children (b) Childs (c) Childes (d) Childrens
92. Identify the correctly formed question: "___ you like some tea?"
    (a) Would (b) Should (c) Must (d) Shall
93. Choose the synonym of "Meticulous":
    (a) Painstaking (b) Careless (c) Hasty (d) Reckless
94. Choose the antonym of "Verbose":
    (a) Concise (b) Wordy (c) Lengthy (d) Rambling
95. Identify the sentence with correct subject-verb agreement:
    (a) "Each of the students has submitted the assignment." (b) "Each of the students have submitted the assignment." (c) "Each of the student has submitted the assignment." (d) "Each of the student have submitted the assignment."
96. Choose the correct article: "She is ___ honest woman."
    (a) An (b) A (c) The, exclusively (d) No article is required
97. Choose the one-word substitute for "one who loves books":
    (a) Bibliophile (b) Philanthropist (c) Misanthrope (d) Bibliographer, in the sense of merely cataloguing them
98. Identify the correctly rearranged sentence: "always / he / on time / arrives"
    (a) "He always arrives on time." (b) "Always he arrives on time." (c) "On time he always arrives." (d) "Arrives he always on time."
99. Choose the antonym of "Diligent":
    (a) Lazy (b) Hardworking (c) Industrious (d) Careful
100. Choose the correct sentence:
     (a) "Neither the manager nor the employees were informed." (b) "Neither the manager nor the employees was informed." (c) "Neither the manager or the employees were informed." (d) "Neither the manager nor employees, were informed."

Answer Key with Explanations

1.(a) RBI was established in 1935.

2.(a) RBI's headquarters is in Mumbai.

3.(a) The Election Commission is established under Article 324.

4.(a) CAG functions under Article 148.

5.(a) Fundamental Rights are in Part III.

6.(a) DPSP are in Part IV.

7.(a) Fundamental Duties were added by the 42nd Amendment.

8.(a) Field hockey is widely considered India's national game.

9.(a) The Bharat Ratna is India's highest civilian award.

10.(a) The Nobel Peace Prize is awarded from Oslo.

11.(a) Other Nobel Prizes are awarded from Stockholm.

12.(a) UPI was developed by NPCI.

13.(a) PMJDY aims at universal financial inclusion.

14.(a) SEBI got statutory powers in 1992.

15.(a) IRDAI is the insurance regulator's abbreviation.

16.(a) World Environment Day is 5 June.

17.(a) International Day of Yoga is 21 June.

18.(a) The Sundarbans are shared with Bangladesh.

19.(a) IB ACIO Tier 1 deducts ¼ mark per wrong answer.

20.(a) Facts in this book are current to August 2026.

21.(a) The Constitution was adopted on 26 November 1949.

22.(a) Dr. Ambedkar is the Constitution's chief architect.

23.(a) Quit India Movement was launched in 1942.

24.(a) Non-Cooperation Movement was launched in 1920.

25.(a) Jallianwala Bagh massacre occurred in 1919.

26.(a) INC was founded in 1885.

27.(a) The Godavari is often cited as the longest river entirely within India.

28.(a) The Thar Desert is mainly in Rajasthan.

29.(a) Kangchenjunga lies on the India-Nepal border area.

30.(a) Parliament comprises the President, Lok Sabha, and Rajya Sabha.

31.(a) Money bills can only originate in the Lok Sabha.

32.(a) GDP measures production within a country's geographic boundaries.

33.(a) Inflation is a sustained rise in the general price level.

34.(a) WPI and CPI both track inflation.

35.(a) Photosynthesis occurs in the chloroplast.

36.(a) Mitochondria are the cell's powerhouse.

37.(a) Newton's First Law is the law of inertia.

38.(a) Gold's chemical symbol is Au.

39.(a) Sodium's chemical symbol is Na.

40.(a) The SI unit of current is the ampere.

41.(a) (150+250)m/20s = 20 m/s = 72 km/h.

42.(a) Combined approach speed = 60+40 = 100 km/h.

43.(a) Downstream speed = 10+2 = 12 km/h.

44.(a) Combined rate = 1/10+1/15 = 1/6, so 6 days.

45.(a) SI = (10000×5×2)/100 = ₹1000.

46.(a) CI = 10000×(1.1²−1) = ₹2100.

47.(a) 3x+5x=64 → x=8, smaller = 24.

48.(a) Average = 150/5 = 30.

49.(a) Profit% = 200/800×100 = 25%.

50.(a) 20% of x = 50 → x = 250.

51.(a) Differences 4,6,8,10,12 → next term 30+12=42.

52.(a) Geometric ×3: 81×3=243.

53.(a) 4/5×10 = 8 litres.

54.(a) Doubling in 8 yrs at SI: 100/8 = 12.5%.

55.(a) Equal CP and SP means no profit or loss.

56.(a) 240/4 = 60 km/h.

57.(a) Inverse proportion: 5×12/10 = 6 days.

58.(a) LCM(4,6) = 12.

59.(a) HCF(12,18) = 6.

60.(a) 500 − 20% of 500 = ₹400.

61.(a) Each letter shifted +1: C→D, A→B, T→U = DBU; D→E,O→P,G→H = EPH.

62.(a) "Some flowers fade quickly" doesn't force all/no roses to fade quickly — indeterminate.

63.(a) Carrot is a vegetable; the others are fruits.

64.(a) 15 days = 2 weeks + 1 day, so Wednesday+1 = Thursday.

65.(a) D, being C's parent and C being B's sibling and B being A's child, is A's spouse (assuming standard roles) — wife.

66.(a) "Some pens are erasers" does not necessarily follow from the given premises.

67.(a) Standard formula: total = position from left + position from right − 1 = 5+10−1 = 14.

68.(a) Squares: 1,4,9,16,25,36.

69.(a) 90° clockwise rotation: W→N.

70.(a) Grandfather's only son is the man's father; father's daughter is the man's sister.

71.(a) Series doubles each time: 40×2=80.

72.(a) A>B>C>D, so D is shortest.

73.(a) Each letter +1: B→C,O→P,O→P,K→L = CPPL; P→Q,A→B,G→H,E→F = QBHF.

74.(a) 15th = 1st+14 days = 2 weeks exactly, so same day: Monday.

75.(a) Cube is a 3D shape; the rest are 2D shapes.

76.(a) At 3:15, angle ≈ 7.5°.

77.(a) Pattern: first number squared: 4²=16.

78.(a) A-B-C describes the sequential seating as stated.

79.(a) P and R are siblings (through Q), gender of R unspecified.

80.(a) Doctor:Hospital :: Teacher:School.

81.(a) "Necessary" is the correct spelling.

82.(a) "Plentiful" is a synonym of "abundant."

83.(a) "Modern" is the antonym of "ancient."

84.(a) "Since" is used with a specific starting point in time.

85.(a) The Oxford-comma-free but correctly punctuated list uses commas after each item except before "and."

86.(a) Passive of present simple: "A letter is written by her."

87.(a) "Illiterate" means unable to read or write.

88.(a) "Neither" is singular, so "was" is correct, not "were."

89.(a) "To spill the beans" means to reveal a secret.

90.(a) "Good at" is the correct preposition pairing.

91.(a) "Children" is the plural of "child."

92.(a) "Would you like some tea?" is the natural polite offer form.

93.(a) "Painstaking" is a synonym of "meticulous."

94.(a) "Concise" is the antonym of "verbose."

95.(a) "Each" is singular, so "has" is correct.

96.(a) "An honest woman" — "honest" begins with a silent h (vowel sound).

97.(a) "Bibliophile" means one who loves books.

98.(a) "He always arrives on time" is the correctly rearranged sentence.

99.(a) "Lazy" is the antonym of "diligent."

100.(a) "Neither...nor" with a plural second subject ("employees") takes a plural verb ("were").