Mock Test 9 — IB ACIO Tier 1 Pattern (100 MCQs)
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Instructions: This test follows the exact IB ACIO Tier 1 pattern — 100 objective questions across five sections, each carrying one mark, with ¼ negative marking for every wrong answer. Time allowed: 60 minutes. Attempt all questions before checking the answer key at the end.
Section A: Current Affairs and Static GK (20 Questions)
The headquarters of the International Atomic Energy Agency (IAEA) is located in: (a) Vienna (b) Geneva (c) The Hague (d) Brussels
India's National Investigation Agency (NIA) was constituted in the aftermath of which event? (a) The 26/11 Mumbai terror attacks (b) The Parliament attack of 2001 (c) The Kargil War (d) The Godhra incident
The "Digital India" programme was launched in which year? (a) 2015 (b) 2012 (c) 2018 (d) 2020
Which Indian state is the largest producer of tea? (a) Assam (b) Kerala (c) Tamil Nadu (d) West Bengal
The Ashoka Chakra in the national flag has how many spokes? (a) 24 (b) 20 (c) 32 (d) 16
The "Statue of Unity," dedicated to Sardar Vallabhbhai Patel, is located on which river? (a) Narmada (b) Tapi (c) Mahi (d) Sabarmati
Which committee recommended the constitution of the GST Council? (a) The 101st Constitutional Amendment gave it statutory basis (b) The Kelkar Committee (c) The Raja Chelliah Committee (d) The Yashwant Sinha Committee
The Nobel Peace Prize is awarded in which city, unlike the other Nobel Prizes? (a) Oslo (b) Stockholm (c) Geneva (d) Copenhagen
India's first indigenous aircraft carrier is named: (a) INS Vikrant (b) INS Vikramaditya (c) INS Viraat (d) INS Arihant
The "Cauvery Water Disputes Tribunal" deals with a river shared by which states? (a) Karnataka and Tamil Nadu (b) Andhra Pradesh and Telangana (c) Maharashtra and Karnataka (d) Kerala and Tamil Nadu
The apex body for regulating cooperative banks along with RBI is: (a) NABARD (b) SIDBI (c) SEBI (d) IRDAI
Which Indian city is known as the "Manchester of India"? (a) Ahmedabad (b) Surat (c) Kanpur (d) Coimbatore
The "Man Booker Prize" (International) is awarded for works of: (a) Fiction translated into English (b) Poetry (c) Non-fiction (d) Drama in original English only
Who is regarded as the "Father of the Indian Constitution"? (a) Dr. B.R. Ambedkar (b) Jawaharlal Nehru (c) Rajendra Prasad (d) Sardar Patel
The "Aadhaar" project is administered by: (a) UIDAI (b) NIC (c) NPCI (d) STQC
Which Indian sportsperson is popularly known as "The Flying Sikh"? (a) Milkha Singh (b) Ajit Pal Singh (c) Balbir Singh (d) Kapil Dev
The first Indian satellite Aryabhata was launched in which year? (a) 1975 (b) 1980 (c) 1969 (d) 1985
Which of the following is the currency of Japan? (a) Yen (b) Won (c) Yuan (d) Ringgit
The "Panchsheel Agreement" of 1954 was signed between India and: (a) China (b) Pakistan (c) Nepal (d) Sri Lanka
India's National Emblem is adopted from the Lion Capital located at: (a) Sarnath (b) Sanchi (c) Bodh Gaya (d) Rajgir
Section B: General Studies (20 Questions)
The "Doctrine of Lapse" was a policy associated with: (a) Lord Dalhousie (b) Lord Curzon (c) Lord Wellesley (d) Lord Cornwallis
Which Article of the Constitution deals with the Right to Constitutional Remedies? (a) Article 32 (b) Article 19 (c) Article 21 (d) Article 14
The "Tropic of Cancer" passes through how many Indian states? (a) 8 (b) 6 (c) 10 (d) 5
Photosynthesis primarily occurs in which part of the plant cell? (a) Chloroplast (b) Mitochondria (c) Nucleus (d) Ribosome
The term "Gross Domestic Product" measures: (a) Total value of goods and services produced within a country's borders (b) Total income earned by a country's citizens globally (c) Total exports minus imports (d) Total government expenditure only
Which Mughal emperor built the Buland Darwaza? (a) Akbar (b) Jahangir (c) Shah Jahan (d) Humayun
The Chipko Movement was primarily concerned with: (a) Forest conservation (b) Anti-liquor protest (c) Land reforms (d) Water rights
The pH value of pure water at 25°C is: (a) 7 (b) 6 (c) 8 (d) 5
Which Indian Ocean current reverses direction with the monsoon? (a) The Somali Current (b) The Agulhas Current (c) The Benguela Current (d) The Humboldt Current
The "Fundamental Duties" were added to the Constitution by which amendment? (a) 42nd Amendment (b) 44th Amendment (c) 73rd Amendment (d) 61st Amendment
Which vitamin deficiency causes night blindness? (a) Vitamin A (b) Vitamin B12 (c) Vitamin C (d) Vitamin D
The Battle of Plassey (1757) was fought between the British and: (a) Siraj-ud-Daulah (b) Tipu Sultan (c) Mir Qasim (d) Shuja-ud-Daulah
"Stagflation" refers to a combination of: (a) Stagnant growth and high inflation (b) High growth and low inflation (c) Falling prices and rising growth (d) Zero inflation and zero growth
Which gas is most abundant in the Earth's atmosphere? (a) Nitrogen (b) Oxygen (c) Carbon dioxide (d) Argon
The Union Public Service Commission is established under which Article? (a) Article 315 (b) Article 280 (c) Article 324 (d) Article 148
Which Indian river is known as the "Sorrow of Bihar"? (a) Kosi (b) Gandak (c) Son (d) Ghaghara
The concept of "Judicial Review" in India is inspired by the Constitution of: (a) The USA (b) The UK (c) Canada (d) Ireland
Which of the following is a rabi crop? (a) Wheat (b) Rice (c) Jute (d) Cotton
The "Rowlatt Act" of 1919 is associated with: (a) Repressive powers of arrest without trial (b) Partition of Bengal (c) Salt tax (d) Separate electorates
The human heart has how many chambers? (a) 4 (b) 2 (c) 3 (d) 6
Section C: Numerical Aptitude (20 Questions)
A shopkeeper marks an item 40% above cost price and gives a 25% discount. Find his profit or loss percent. (a) 5% profit (b) 10% profit (c) 5% loss (d) 15% loss
Find the compound interest on ₹15,000 at 10% per annum for 2 years, compounded annually. (a) ₹3,150 (b) ₹3,000 (c) ₹3,300 (d) ₹2,850
The ratio of ages of P and Q is 5:7. After 6 years, the ratio becomes 3:4. Find P's present age. (a) 30 years (b) 35 years (c) 25 years (d) 42 years
A train 200 m long crosses a platform 300 m long in 25 seconds. Find the speed of the train in km/h. (a) 72 km/h (b) 60 km/h (c) 80 km/h (d) 90 km/h
Two pipes A and B can fill a tank in 12 and 18 hours respectively. Working together, how long will they take? (a) 7.2 hours (b) 8 hours (c) 6.5 hours (d) 9 hours
Find the average of the first 15 natural numbers. (a) 8 (b) 7.5 (c) 8.5 (d) 9
What is 35% of 480? (a) 168 (b) 160 (c) 172 (d) 156
A sum of ₹9,600 is divided among A, B, C in the ratio 4:5:3. Find B's share. (a) ₹4,000 (b) ₹3,600 (c) ₹3,200 (d) ₹4,400
Find the next number in the series: 3, 8, 15, 24, 35, ? (a) 48 (b) 46 (c) 50 (d) 44
A boat covers 36 km downstream in 3 hours and the same distance upstream in 4 hours. Find the speed of the boat in still water. (a) 10.5 km/h (b) 9 km/h (c) 12 km/h (d) 8 km/h
If the perimeter of a square is 64 cm, find its area. (a) 256 sq cm (b) 128 sq cm (c) 512 sq cm (d) 64 sq cm
The HCF and LCM of two numbers are 6 and 210 respectively. If one number is 30, find the other. (a) 42 (b) 36 (c) 48 (d) 35
A man's income increases from ₹25,000 to ₹30,000. Find the percentage increase. (a) 20% (b) 25% (c) 15% (d) 18%
Find the value of: 15 × 8 − 6² + 20 ÷ 4 (a) 89 (b) 85 (c) 93 (d) 81
A can do a piece of work in 20 days and B in 30 days. They work together for 5 days; find the fraction of work completed. (a) 5/12 (b) 1/3 (c) 7/12 (d) 1/2
The simple interest on a sum for 3 years at 8% per annum is ₹1,440. Find the sum. (a) ₹6,000 (b) ₹5,500 (c) ₹6,500 (d) ₹7,000
Find the least number that must be added to 1,057 to make it exactly divisible by 23. (a) 1 (b) 5 (c) 2 (d) 4
The area of a rectangle is 240 sq cm and its length is 20 cm. Find its perimeter. (a) 68 cm (b) 64 cm (c) 72 cm (d) 60 cm
A mixture of 60 litres contains milk and water in the ratio 2:1. How much water should be added to make the ratio 1:1? (a) 20 litres (b) 15 litres (c) 25 litres (d) 30 litres
Find the compound interest on ₹8,000 at 5% per annum for 2 years. (a) ₹820 (b) ₹800 (c) ₹850 (d) ₹780
Section D: Reasoning and Logical Aptitude (20 Questions)
Find the odd one out: Triangle, Square, Circle, Perimeter (a) Perimeter (b) Triangle (c) Square (d) Circle
If each letter is assigned its position value in the alphabet and the code is the sum of the position values, how is STAR coded (S=19, T=20, A=1, R=18)? (a) 58 (b) 70 (c) 72 (d) 66
Pointing to a woman, a man says, "She is the daughter of my mother's only son." How is the woman related to the man? (a) Daughter (b) Niece (c) Sister (d) Wife
Complete the series: 2, 6, 12, 20, 30, ? (a) 42 (b) 40 (c) 44 (d) 38
If all cats are dogs, and all dogs are birds, then: (a) All cats are birds (b) All birds are cats (c) No cats are birds (d) Some birds are not cats
If in a certain code, "RIVER" is written as "SJWFS," how is "OCEAN" written? (a) PDFBO (b) PDFBP (c) PDFAO (d) ODFBO
A is the brother of B. B is the sister of C. C is the son of D. How is A related to D? (a) Son (b) Daughter (c) Nephew (d) Grandson
Find the missing number: 7, 13, 25, 49, ? (a) 97 (b) 95 (c) 99 (d) 93
If Monday falls on the 3rd of a month, what day falls on the 24th of the same month? (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
Choose the word that does not belong: Rose, Lily, Lotus, Mango (a) Mango (b) Rose (c) Lily (d) Lotus
In a row of children, Rita is 8th from the left and 15th from the right. How many children are in the row? (a) 22 (b) 23 (c) 21 (d) 20
Which number will replace the question mark? 5, 10, 20, 40, ? (a) 80 (b) 70 (c) 60 (d) 90
Statements: All pens are pencils. All pencils are erasers. Conclusions: I. All pens are erasers. II. Some erasers are pens. (a) Both I and II follow (b) Only I follows (c) Only II follows (d) Neither follows
If North becomes East, East becomes South, and so on, what will South become? (a) West (b) North (c) East (d) South
Find the odd pair: (4, 16), (5, 25), (6, 30), (7, 49) (a) (6, 30) (b) (4, 16) (c) (5, 25) (d) (7, 49)
A clock shows 3:15. What is the angle between the hour and minute hands? (a) 7.5° (b) 15° (c) 0° (d) 22.5°
P is the father of Q. Q is the mother of R. S is the father of R. How is P related to S? (a) Father-in-law (b) Brother (c) Uncle (d) Grandfather
Complete the analogy: Doctor : Hospital :: Teacher : ? (a) School (b) Book (c) Student (d) Blackboard
Find the next term: AZ, BY, CX, DW, ? (a) EV (b) EU (c) FV (d) DV
Five friends P, Q, R, S, T are sitting in a row from left to right in the order: T, S, R, Q, P. Who is at the extreme left? (a) T (b) S (c) R (d) Q
Section E: English Language (20 Questions)
Choose the correctly spelt word: (a) Questionnaire (b) Questionnare (c) Questionaire (d) Questionnair
Choose the synonym of "CANDID": (a) Frank (b) Secretive (c) Deceptive (d) Reserved
Choose the antonym of "GENEROUS": (a) Stingy (b) Kind (c) Charitable (d) Liberal
Fill in the blank: He has been living here ___ 2015. (a) since (b) for (c) from (d) during
Identify the part of speech of the underlined word: "She sings beautifully." (a) Adverb (b) Adjective (c) Noun (d) Verb
Choose the correctly punctuated sentence: (a) "Where are you going?" she asked. (b) Where are you going she asked. (c) "Where are you going", she asked? (d) Where are you going, she asked."
Convert to passive voice: "The chef is cooking dinner." (a) Dinner is being cooked by the chef. (b) Dinner was cooked by the chef. (c) Dinner has been cooked by the chef. (d) Dinner is cooked by the chef.
Choose the one-word substitute for "a person who is unable to pay debts": (a) Insolvent (b) Miser (c) Bankrupt trader (d) Debtor
Choose the correct meaning of the idiom "to add fuel to the fire": (a) To worsen a situation (b) To calm things down (c) To ignore a problem (d) To start something new
Identify the error: "Neither of the two boys have finished their homework." (a) have (b) Neither (c) boys (d) their
Choose the correct article: "___ European Union has 27 member states." (a) The (b) A (c) An (d) No article needed
Choose the correctly spelt word: (a) Occurrence (b) Occurance (c) Occurrence (d) Occurrance
Fill in the blank: She is ___ honest person. (a) an (b) a (c) the (d) no article
Choose the synonym of "ABUNDANT": (a) Plentiful (b) Scarce (c) Limited (d) Meagre
Choose the antonym of "TRANQUIL": (a) Turbulent (b) Calm (c) Peaceful (d) Serene
Rearrange the parts to form a meaningful sentence: (P) all the students (Q) the teacher (R) praised (S) for their hard work (a) QRPS (b) QPRS (c) RQPS (d) PQRS
Choose the correctly punctuated sentence: (a) I have three favourite fruits: mangoes, apples, and bananas. (b) I have three favourite fruits mangoes, apples, and bananas. (c) I have three favourite fruits: mangoes apples and bananas. (d) I have three favourite fruits; mangoes, apples, and bananas.
Identify the error: "Each of the students have submitted their assignment." (a) have (b) Each (c) submitted (d) their
Choose the one-word substitute for "government by the rich": (a) Plutocracy (b) Aristocracy (c) Theocracy (d) Bureaucracy
Choose the correct meaning of the idiom "to bite the bullet": (a) To face a difficult situation bravely (b) To avoid a problem (c) To celebrate success (d) To give up easily
Answer Key with Explanations — Mock Test 9
1.(a) The IAEA is headquartered in Vienna, Austria.
2.(a) The NIA was formed after the 26/11 Mumbai attacks under the NIA Act, 2008.
3.(a) Digital India was launched in 2015.
4.(a) Assam is India's largest tea producer.
5.(a) The Ashoka Chakra has 24 spokes.
6.(a) The Statue of Unity stands on the Narmada river.
7.(a) The 101st Amendment gave the GST Council its constitutional basis.
8.(a) The Nobel Peace Prize is awarded in Oslo, Norway, unlike other prizes given in Stockholm.
9.(a) INS Vikrant is India's first indigenous aircraft carrier.
10.(a) The Cauvery dispute is between Karnataka and Tamil Nadu.
11.(a) NABARD regulates cooperative and regional rural banks alongside RBI.
12.(a) Ahmedabad is known as the Manchester of India for its textile industry.
13.(a) The International Booker Prize is for fiction translated into English.
14.(a) Dr. B.R. Ambedkar is called the Father of the Indian Constitution.
15.(a) UIDAI administers the Aadhaar project.
16.(a) Milkha Singh is known as the Flying Sikh.
17.(a) Aryabhata was launched in 1975.
18.(a) Yen is Japan's currency.
19.(a) The Panchsheel Agreement of 1954 was signed between India and China.
20.(a) The National Emblem is adapted from the Lion Capital at Sarnath.
21.(a) The Doctrine of Lapse is associated with Lord Dalhousie.
22.(a) Article 32 provides the Right to Constitutional Remedies.
23.(a) The Tropic of Cancer passes through 8 Indian states.
24.(a) Photosynthesis occurs in the chloroplast.
25.(a) GDP measures the total value of goods and services produced within a country's borders.
26.(a) Akbar built the Buland Darwaza at Fatehpur Sikri.
27.(a) The Chipko Movement was concerned with forest conservation.
28.(a) Pure water has a pH of 7 at 25°C.
29.(a) The Somali Current reverses direction with the monsoon.
30.(a) Fundamental Duties were added by the 42nd Amendment.
31.(a) Vitamin A deficiency causes night blindness.
32.(a) The Battle of Plassey was fought against Siraj-ud-Daulah.
33.(a) Stagflation combines stagnant growth with high inflation.
34.(a) Nitrogen is the most abundant atmospheric gas (about 78%).
35.(a) The UPSC is established under Article 315.
36.(a) The Kosi river is called the Sorrow of Bihar.
37.(a) Judicial Review in India is inspired by the US Constitution.
38.(a) Wheat is a rabi crop.
39.(a) The Rowlatt Act allowed arrest and detention without trial.
40.(a) The human heart has 4 chambers. 41. Let CP = 100. MP = 140. SP after 25% discount = 140 × 0.75 = 105. Profit = 5%. (a) 42. CI = 15000×(1.1² − 1) = 15000×0.21 = ₹3,150. (a) 43. Let ages be 5x, 7x. (5x+6)/(7x+6) = 3/4 → 20x+24=21x+18 → x=6. P's age = 30. (a) 44. Total distance = 500 m in 25 s = 20 m/s = 72 km/h. (a) 45. Combined rate = 1/12+1/18 = 5/36; time = 36/5 = 7.2 hours. (a) 46. Average of first n naturals = (n+1)/2 = 16/2 = 8. (a) 47. 35% of 480 = 168. (a) 48. Total parts = 12; B's share = 9600×5/12 = ₹4,000. (a) 49. Differences: 5,7,9,11,13 → next term 35+13=48. (a) 50. Downstream speed=12, upstream speed=9; boat speed=(12+9)/2=10.5 km/h. (a) 51. Side=16 cm; area=256 sq cm. (a) 52. Other number = (HCF×LCM)/30 = (6×210)/30 = 42. (a) 53. Increase = 5000/25000×100 = 20%. (a) 54. 15×8=120; 6²=36; 20÷4=5; 120−36+5=89. (a) 55. Combined rate=1/20+1/30=1/12; in 5 days = 5/12 work done. (a) 56. Sum = (1440×100)/(3×8) = ₹6,000. (a) 57. 23×45=1035; 1057−1035=22; least number to add = 23−22=1. (a) 58. Breadth=240/20=12; perimeter=2(20+12)=64 cm. (a) 59. Milk=40, water=20; to make 1:1, water needed=40; add 20 litres. (a) 60. CI = 8000×(1.05²−1) = 8000×0.1025 = ₹820. (a)
61.(a) Perimeter is a measurement concept; the others are shapes.
62.(a) Sum of position values: S(19)+T(20)+A(1)+R(18) = 58.
63.(a) Mother's only son is the man himself; his daughter is the woman — she is his daughter.
64.(a) Differences 4,6,8,10,12 → 30+12=42.
65.(a) By transitivity, all cats are birds.
66.(a) Each letter is shifted forward by one position: O→P, C→D, E→F, A→B, N→O = PDFBO.
67.(a) A is B's brother; B is C's sister, so A and C are siblings; C is D's son, so A is also D's son.
68.(a) Pattern: 7×2−1=13, 13×2−1=25, 25×2−1=49, 49×2−1=97.
69.(a) 3rd to 24th is 21 days = exactly 3 weeks, so the 24th is also a Monday.
70.(a) Mango is a fruit; the others are flowers.
71.(a) Total = 8+15−1 = 22.
72.(a) Each term doubles: 40×2=80.
73.(a) Both conclusions logically follow from the given statements.
74.(a) With a 90° clockwise rotation of directions, South becomes West.
75.(a) In the others, the second number is the square of the first (16=4², 25=5², 49=7²); 30 is not 6².
76.(a) At 3:15, the angle is 7.5°.
77.(a) Q is P's daughter and R's mother; S is R's father, so P and S are related as father-in-law (P is S's wife's father).
78.(a) A teacher's typical workplace is a school, paralleling doctor-hospital.
79.(a) First letters move forward (A,B,C,D→E) and second letters move backward (Z,Y,X,W→V), giving EV.
80.(a) The order from left to right is T, S, R, Q, P, so T is at the extreme left.
81.(a) "Questionnaire" is the correct spelling.
82.(a) Candid means frank and honest.
83.(a) Stingy is the antonym of generous.
84.(a) "Since" is used with a specific point in time (2015).
85.(a) "Beautifully" describes how she sings — it is an adverb.
86.(a) Correct punctuation places the quotation and question mark properly: "Where are you going?" she asked.
87.(a) Passive form: Dinner is being cooked by the chef.
88.(a) Insolvent means unable to pay one's debts.
89.(a) "To add fuel to the fire" means to worsen a situation.
90.(a) "Have" should be "has" since "neither" is singular.
91.(a) "European" begins with a consonant sound, but as an organisation name "The European Union" takes the definite article "The."
92.(a) "Occurrence" is the correct spelling (double 'r', single 'c').
93.(a) "Honest" begins with a silent 'h', so the vowel sound requires "an."
94.(a) Abundant means plentiful.
95.(a) Turbulent is the antonym of tranquil.
96.(a) Correct order: QRPS — "the teacher praised all the students for their hard work."
97.(a) Correct punctuation uses a colon before the list: I have three favourite fruits: mangoes, apples, and bananas.
98.(a) "Have" should be "has" since "each" is singular.
99.(a) Plutocracy means government by the wealthy.
100.(a) "To bite the bullet" means to face a difficult situation bravely.