Mock Test 15 — IB ACIO Tier 1 Pattern (100 MCQs)
Free study material · concepts, shortcuts & solved questions
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 "Multidimensional Poverty Index" is jointly published by UNDP and: (a) Oxford Poverty and Human Development Initiative (OPHI) (b) World Bank (c) IMF (d) WHO
Which agency handles India's foreign intelligence gathering through signals intelligence? (a) National Technical Research Organisation (NTRO) (b) IB (c) NIA (d) RAW handles human intelligence; NTRO handles technical intelligence
The "Hampi" ruins, a UNESCO World Heritage Site, are located in which state? (a) Karnataka (b) Andhra Pradesh (c) Tamil Nadu (d) Telangana
Which Indian state has the highest literacy rate? (a) Kerala (b) Mizoram (c) Goa (d) Tripura
The "Mission Shakti" scheme is aimed at: (a) Women's safety and empowerment (b) Rural electrification (c) Skill development for youth (d) Farmer welfare
Which Indian scientist led the team that developed India's first nuclear device test, "Smiling Buddha"? (a) Raja Ramanna (b) Homi Bhabha (c) Vikram Sarabhai (d) A.P.J. Abdul Kalam
The "World Health Organization" is headquartered in: (a) Geneva (b) Vienna (c) New York (d) Paris
Which force is primarily responsible for guarding India's border with Bangladesh? (a) Border Security Force (BSF) (b) ITBP (c) SSB (d) Assam Rifles
The "Stand Up India" scheme primarily supports: (a) SC/ST and women entrepreneurs (b) Senior citizens (c) Students (d) Farmers
Which is the currency of Switzerland? (a) Swiss Franc (b) Euro (c) Dollar (d) Krone
The "National Investigation Agency" has jurisdiction over: (a) Scheduled offences related to terrorism and national security across India (b) Only state-level crimes (c) Only cybercrime (d) Only economic offences
Which Indian city hosts the headquarters of SEBI? (a) Mumbai (b) New Delhi (c) Kolkata (d) Chennai
The "Places of Worship Act" was enacted in which year? (a) 1991 (b) 1989 (c) 1993 (d) 1995
Which international body awards the "Pulitzer Prize"? (a) Columbia University, USA (b) Nobel Committee (c) UNESCO (d) The British Council
The "Digital Rupee" (e-Rupee) pilot was launched by which institution? (a) Reserve Bank of India (b) NPCI (c) SEBI (d) Ministry of Finance
Which Indian state is the largest producer of natural rubber? (a) Kerala (b) Tamil Nadu (c) Karnataka (d) Tripura
The "Montreal Protocol" is aimed at: (a) Phasing out substances that deplete the ozone layer (b) Reducing carbon emissions (c) Conserving biodiversity (d) Regulating international trade
The "Atal Pension Yojana" is targeted primarily at: (a) Workers in the unorganised sector (b) Government employees (c) Corporate employees (d) Students
Which Indian city hosts the headquarters of the Border Security Force? (a) New Delhi (b) Jodhpur (c) Guwahati (d) Kolkata
The "Har Ghar Tiranga" campaign is associated with: (a) Celebrating 75 years of India's independence by displaying the national flag (b) Rural housing (c) Financial literacy (d) Digital literacy
Section B: General Studies (20 Questions)
The "Regulating Act of 1773" established the post of: (a) Governor-General of Bengal (b) Viceroy of India (c) Secretary of State (d) Governor-General of India
Which Article deals with Protection of Life and Personal Liberty? (a) Article 21 (b) Article 19 (c) Article 14 (d) Article 32
The "Malwa Plateau" is located in which state? (a) Madhya Pradesh (b) Rajasthan (c) Gujarat (d) Maharashtra
The SI unit of pressure is: (a) Pascal (b) Newton (c) Joule (d) Watt
"Per capita income" is calculated by: (a) Dividing national income by total population (b) Dividing GDP by exports (c) Dividing government spending by population (d) Dividing exports by imports
Which ruler is credited with building the Qutub Minar? (a) Qutb-ud-din Aibak (started it; completed by successors) (b) Akbar (c) Iltutmish alone (d) Balban
The "Swadeshi Movement" was launched in response to: (a) The Partition of Bengal in 1905 (b) The Rowlatt Act (c) The Jallianwala Bagh massacre (d) The Simon Commission
Which gland is known as the "master gland" of the human endocrine system? (a) Pituitary gland (b) Thyroid gland (c) Adrenal gland (d) Pancreas
The "Thar Desert" lies primarily in which state? (a) Rajasthan (b) Gujarat (c) Haryana (d) Punjab
The concept of a "Written Constitution" in India was influenced by: (a) The USA (b) The UK (c) Canada (d) Ireland
Deficiency of Vitamin B12 causes which condition? (a) Pernicious anaemia (b) Scurvy (c) Rickets (d) Night blindness
The "Battle of Buxar" (1764) was fought between the British and a combined force of: (a) Mir Qasim, Shuja-ud-Daulah, and Shah Alam II (b) Siraj-ud-Daulah alone (c) Tipu Sultan and the Nizam (d) The Marathas and Rajputs
"Progressive taxation" means: (a) Tax rate increases as income increases (b) Tax rate is the same for all incomes (c) Tax rate decreases as income increases (d) No tax is levied on income
Which of the following is a renewable source of energy? (a) Solar energy (b) Coal (c) Natural gas (d) Petroleum
Money Bills in India can only be introduced in: (a) The Lok Sabha (b) The Rajya Sabha (c) Either House (d) The State Legislature
The "Pangong Tso Lake" is located in which region? (a) Ladakh (b) Kashmir Valley (c) Himachal Pradesh (d) Sikkim
India's Constitution provides for a "Single Citizenship" model, similar to: (a) The UK (b) The USA (c) Switzerland (d) Canada
Which of the following is grown mainly in the Terai region? (a) Sugarcane (b) Cotton (c) Millets (d) Groundnut
The "August Offer" was made by the British in which year? (a) 1940 (b) 1942 (c) 1939 (d) 1945
Which of the following describes the function of white blood cells? (a) Fighting infection (b) Transporting oxygen (c) Blood clotting (d) Regulating body temperature
Section C: Numerical Aptitude (20 Questions)
A sum of ₹7,500 becomes ₹9,000 in 4 years at simple interest. Find the rate of interest. (a) 5% (b) 6% (c) 4% (d) 7%
Find the compound interest on ₹24,000 at 25% per annum for 2 years. (a) ₹13,500 (b) ₹12,000 (c) ₹13,000 (d) ₹12,500
Two numbers are in the ratio 8:5. If their difference is 45, find the larger number. (a) 120 (b) 100 (c) 110 (d) 130
A car travels at 60 km/h for the first half of a journey and 40 km/h for the second half. Find the average speed for the entire journey. (a) 48 km/h (b) 50 km/h (c) 45 km/h (d) 52 km/h
A tap can fill a tank in 20 minutes and another can empty it in 30 minutes. If both are opened together, find the time to fill the tank. (a) 60 minutes (b) 50 minutes (c) 45 minutes (d) 40 minutes
The average of 8 numbers is 25. If a ninth number, 43, is added, find the new average. (a) 27 (b) 26 (c) 28 (d) 29
What is 80% of 350 minus 30% of 200? (a) 220 (b) 210 (c) 230 (d) 200
₹72,000 is divided among A, B, C in the ratio 4:6:8. Find the difference between A's and C's shares. (a) ₹16,000 (b) ₹14,000 (c) ₹18,000 (d) ₹12,000
Find the next number in the series: 3, 7, 15, 31, ? (a) 63 (b) 61 (c) 65 (d) 59
A boat's speed in still water is 20 km/h. It covers 96 km downstream in 4 hours. Find the speed of the stream. (a) 4 km/h (b) 3 km/h (c) 5 km/h (d) 6 km/h
Find the perimeter of a rectangle with length 18 cm and breadth 12 cm. (a) 60 cm (b) 55 cm (c) 65 cm (d) 50 cm
Two numbers are in the ratio 11:13. If the larger number is 91, find the smaller number. (a) 77 (b) 70 (c) 75 (d) 80
A trader buys goods at ₹800 and sells them at ₹960. Find his profit percent. (a) 20% (b) 25% (c) 15% (d) 30%
Simplify: 6³ − 5³ + 10 ÷ 2 (a) 96 (b) 90 (c) 100 (d) 88
A and B can complete a work in 15 days. A alone takes 25 days. Find the time B alone would take. (a) 37.5 days (b) 40 days (c) 35 days (d) 30 days
Find the simple interest on ₹40,000 at 6.5% per annum for 3 years. (a) ₹7,800 (b) ₹7,500 (c) ₹8,000 (d) ₹7,200
Find the least number which when divided by 12, 15, and 18 leaves remainder 5 in each case. (a) 185 (b) 180 (c) 175 (d) 190
A cylindrical tank has a radius of 7 m and height 10 m. Find its volume. (Use π = 22/7) (a) 1,540 cubic m (b) 1,500 cubic m (c) 1,600 cubic m (d) 1,450 cubic m
In a mixture of 90 litres, milk and water are in the ratio 7:2. Find the water to be added to make the ratio 7:4. (a) 20 litres (b) 15 litres (c) 25 litres (d) 10 litres
Find the compound interest on ₹18,000 at 10% per annum for 3 years. (a) ₹5,958 (b) ₹5,500 (c) ₹6,000 (d) ₹5,200
Section D: Reasoning and Logical Aptitude (20 Questions)
Find the odd one out: Apple, Banana, Carrot, Mango (a) Carrot (b) Apple (c) Banana (d) Mango
If "CANDLE" is coded as "DBOEMF," how is "BASKET" coded? (a) CBTLFU (b) CBTLFV (c) CBTKFU (d) BCTLFU
Pointing to a man, a woman says, "He is my mother's husband's son." How is the man related to the woman, assuming he is not the woman herself? (a) Brother (b) Father (c) Son (d) Cousin
Complete the series: 8, 16, 32, 64, ? (a) 128 (b) 120 (c) 124 (d) 132
If all pilots are trained professionals, and some trained professionals are engineers, then: (a) Some pilots may be engineers (b) All pilots are engineers (c) No pilots are engineers (d) All engineers are pilots
If "BRAVE" is coded as "CSBWF," how is "NOBLE" coded? (a) OPCMF (b) OPCMG (c) OPBMF (d) NPCMF
In a family, P is the son of Q. R is the daughter of Q. S is the husband of R. How is P related to S? (a) Brother-in-law (b) Brother (c) Father (d) Uncle
Find the missing number: 12, 23, 45, 89, ? (a) 177 (b) 175 (c) 179 (d) 173
If Saturday falls on the 20th of a month, what day falls on the 3rd of the same month? (a) Wednesday (b) Thursday (c) Tuesday (d) Friday
Choose the word that does not belong: Piano, Violin, Guitar, Football (a) Football (b) Piano (c) Violin (d) Guitar
In a row, Simran is 22nd from the left and 18th from the right. How many people are in the row? (a) 39 (b) 40 (c) 38 (d) 41
Which number will replace the question mark? 7, 21, 63, 189, ? (a) 567 (b) 560 (c) 550 (d) 570
Statements: All keys are chains. All chains are metals. Conclusions: I. All keys are metals. II. Some metals are keys. (a) Both follow (b) Only I follows (c) Only II follows (d) Neither follows
A person walks 12 km north, then 5 km east. How far is he from the starting point? (a) 13 km (b) 17 km (c) 12 km (d) 5 km
Find the odd pair: (36, 6), (49, 7), (64, 8), (72, 9) (a) (72, 9) (b) (36, 6) (c) (49, 7) (d) (64, 8)
A clock shows 2:00. What is the angle between the hour and minute hands? (a) 60° (b) 90° (c) 30° (d) 120°
K is the father of L. M is the daughter of L. N is the son of M. How is K related to N? (a) Great-grandfather (b) Grandfather (c) Father (d) Uncle
Complete the analogy: Carpenter : Wood :: Tailor : ? (a) Cloth (b) Needle (c) Scissors (d) Thread
Find the next term: CD, FG, IJ, LM, ? (a) OP (b) NO (c) PQ (d) NP
In a group of six friends, X is taller than Y but shorter than Z. Y is taller than W. Z is the tallest. Who is the shortest, if V is shorter than W and U is taller than X but shorter than Z? (a) V (b) W (c) Y (d) U
Section E: English Language (20 Questions)
Choose the correctly spelt word: (a) Immediately (b) Imediately (c) Immediatly (d) Immediattely
Choose the synonym of "AUDACIOUS": (a) Bold (b) Timid (c) Shy (d) Cautious
Choose the antonym of "GENUINE": (a) Fake (b) Real (c) Authentic (d) True
Fill in the blank: She was accused ___ theft. (a) of (b) for (c) with (d) about
Identify the part of speech of the underlined word: "He is a hardworking employee." (a) Adjective (b) Adverb (c) Noun (d) Verb
Choose the correctly punctuated sentence: (a) The report, which was submitted late, was rejected. (b) The report which was submitted late was rejected. (c) The report, which was submitted late was rejected. (d) The report which was submitted late, was rejected.
Convert to passive voice: "The teacher will explain the lesson." (a) The lesson will be explained by the teacher. (b) The lesson is explained by the teacher. (c) The lesson was explained by the teacher. (d) The lesson has been explained by the teacher.
Choose the one-word substitute for "a word that reads the same forwards and backwards": (a) Palindrome (b) Anagram (c) Acronym (d) Homonym
Choose the correct meaning of the idiom "to cost an arm and a leg": (a) To be very expensive (b) To be very cheap (c) To injure oneself (d) To lose a body part
Identify the error: "The scenery of the mountains were breathtaking." (a) were (b) scenery (c) mountains (d) breathtaking
Choose the correct article: "___ university near my house offers evening classes." (a) A (b) An (c) The (d) No article needed
Choose the correctly spelt word: (a) Harass (b) Harrass (c) Harras (d) Harrasse
Fill in the blank: The library is open ___ 8 AM to 8 PM. (a) from (b) since (c) for (d) at
Choose the synonym of "LUCID": (a) Clear (b) Confusing (c) Vague (d) Obscure
Choose the antonym of "FRUGAL": (a) Extravagant (b) Thrifty (c) Economical (d) Sparing
Rearrange the parts to form a meaningful sentence: (P) is considered (Q) for good health (R) regular sleep (S) essential (a) RPSQ (b) RSPQ (c) PRSQ (d) SRPQ
Choose the correctly punctuated sentence: (a) No, thank you, I am not hungry. (b) No thank you, I am not hungry. (c) No, thank you I am not hungry. (d) No; thank you, I am not hungry
Identify the error: "A number of students has failed the exam." (a) has (b) number (c) students (d) failed
Choose the one-word substitute for "one who is new to a profession": (a) Novice (b) Veteran (c) Expert (d) Master
Choose the correct meaning of the idiom "to throw in the towel": (a) To give up (b) To start a fight (c) To celebrate victory (d) To clean up
Answer Key with Explanations — Mock Test 15
1.(a) The Multidimensional Poverty Index is jointly published by UNDP and OPHI.
2.(a) The NTRO handles India's technical intelligence, including signals intelligence.
3.(a) Hampi is located in Karnataka.
4.(a) Kerala has the highest literacy rate among Indian states.
5.(a) Mission Shakti is aimed at women's safety and empowerment.
6.(a) Raja Ramanna led the team behind the Smiling Buddha nuclear test.
7.(a) The WHO is headquartered in Geneva.
8.(a) The BSF primarily guards India's border with Bangladesh.
9.(a) Stand Up India supports SC/ST and women entrepreneurs.
10.(a) The Swiss Franc is the currency of Switzerland.
11.(a) The NIA has jurisdiction over scheduled offences related to terrorism and national security across India.
12.(a) SEBI is headquartered in Mumbai.
13.(a) The Places of Worship Act was enacted in 1991.
14.(a) The Pulitzer Prize is awarded by Columbia University, USA.
15.(a) The Digital Rupee pilot was launched by the RBI.
16.(a) Kerala is the largest producer of natural rubber.
17.(a) The Montreal Protocol is aimed at phasing out ozone-depleting substances.
18.(a) The Atal Pension Yojana targets workers in the unorganised sector.
19.(a) The BSF headquarters is in New Delhi.
20.(a) Har Ghar Tiranga celebrated 75 years of independence through flag displays.
21.(a) The Regulating Act of 1773 established the post of Governor-General of Bengal.
22.(a) Article 21 deals with Protection of Life and Personal Liberty.
23.(a) The Malwa Plateau is located in Madhya Pradesh.
24.(a) The SI unit of pressure is the Pascal.
25.(a) Per capita income is calculated by dividing national income by total population.
26.(a) Qutb-ud-din Aibak started the Qutub Minar, completed by his successors.
27.(a) The Swadeshi Movement was launched in response to the 1905 Partition of Bengal.
28.(a) The pituitary gland is known as the master gland.
29.(a) The Thar Desert lies primarily in Rajasthan.
30.(a) India's written Constitution was influenced by the US Constitution.
31.(a) Vitamin B12 deficiency causes pernicious anaemia.
32.(a) The Battle of Buxar was fought against the combined forces of Mir Qasim, Shuja-ud-Daulah, and Shah Alam II.
33.(a) Progressive taxation means the tax rate increases as income increases.
34.(a) Solar energy is a renewable source of energy.
35.(a) Money Bills can only be introduced in the Lok Sabha.
36.(a) Pangong Tso Lake is located in Ladakh.
37.(a) India follows a Single Citizenship model similar to the UK.
38.(a) Sugarcane is grown mainly in the Terai region.
39.(a) The August Offer was made in 1940.
40.(a) White blood cells primarily function in fighting infection. 41. SI = 9000−7500=1500 over 4 years; rate = (1500×100)/(7500×4)=5%. (a) 42. CI=24000×(1.25²−1)=24000×0.5625=₹13,500. (a) 43. Total parts difference=3; each part=45/3=15; larger number=8×15=120. (a) 44. Average speed for equal distances = 2×60×40/(60+40)=4800/100=48 km/h. (a) 45. Combined rate=1/20−1/30=3/60−2/60=1/60; time=60 minutes. (a) 46. New sum=8×25+43=200+43=243; new average=243/9=27. (a) 47. 80% of 350=280; 30% of 200=60; 280−60=220. (a) 48. Total parts=18; A=4×4000=16000, C=8×4000=32000; difference=16000. (a) 49. Pattern ×2+1: 3×2+1=7, 7×2+1=15, 15×2+1=31, 31×2+1=63. (a) 50. Downstream speed=96/4=24 km/h; stream speed=24−20=4 km/h. (a) 51. Perimeter=2(18+12)=60 cm. (a) 52. Ratio 11:13; larger corresponds to 13 parts=91, so 1 part=7; smaller=11×7=77. (a) 53. Profit=960−800=160; profit%=160/800×100=20%. (a) 54. 6³=216; 5³=125; 10÷2=5; 216−125+5=96. (a) 55. Combined rate=1/15; A's rate=1/25; B's rate=1/15−1/25=5/75−3/75=2/75; B takes 75/2=37.5 days. (a) 56. SI=(40000×6.5×3)/100=₹7,800. (a) 57. LCM of 12,15,18=180; least number=180+5=185. (a) 58. Volume=πr²h=22/7×7²×10=22/7×49×10=22×7×10=1,540 cubic m. (a) 59. Milk=70, water=20; for ratio 7:4 with milk=70, water needed=40; add 40−20=20 litres. (a) 60. CI=18000×(1.1³−1)=18000×0.331=₹5,958. (a)
61.(a) Carrot is a root vegetable; the others are fruits.
62.(a) Each letter shifts forward by one: B→C, A→B, S→T, K→L, E→F, T→U = CBTLFU.
63.(a) The woman's mother's husband is her own father; her father's son (other than herself) is her brother.
64.(a) Each term doubles: 64×2=128.
65.(a) Since all pilots are trained professionals and some trained professionals are engineers, it is possible that some pilots are engineers.
66.(a) Each letter shifts forward by one: N→O, O→P, B→C, L→M, E→F = OPCMF.
67.(a) P and R are siblings (both children of Q); S is R's husband, making S and P brothers-in-law.
68.(a) Pattern ×2−1: 12×2−1=23, 23×2−1=45, 45×2−1=89, 89×2−1=177.
69.(a) From the 3rd to the 20th is 17 days; 17 mod 7=3, so the day shifts forward by 3 from the 3rd's day to reach Saturday; working backward 3 days from Saturday gives Wednesday.
70.(a) Football is a sport; the others are musical instruments.
71.(a) Total = 22+18−1 = 39.
72.(a) Each term is multiplied by 3: 189×3=567.
73.(a) Since all keys are chains and all chains are metals, all keys are metals, and it follows that some metals are keys.
74.(a) Using the Pythagorean theorem: distance=√(12²+5²)=√(144+25)=√169=13 km.
75.(a) In the others, the second number is the square root of the first (36=6², 49=7², 64=8²); 9²=81, not 72, so (72,9) is the odd pair.
76.(a) At 2:00, the gap between hour and minute hands is 2 hours, equal to 2×30°=60°.
77.(a) L is K's child and M's parent; M is N's parent, so K is N's great-grandfather.
78.(a) A tailor's typical raw material is cloth, paralleling carpenter-wood.
79.(a) Each pair starts 3 letters after the previous (C,F,I,L,O) with consecutive second letters, giving OP.
80.(a) Given Z is tallest and X, Y, W, U, V form a descending chain with V shorter than W and W shorter than Y (since Y is taller than W), the shortest among the group is V.
81.(a) "Immediately" is spelt with double 'm'.
82.(a) Audacious means bold and daring.
83.(a) Fake is the antonym of genuine.
84.(a) "Accused of" is the correct idiomatic usage.
85.(a) "Hardworking" describes the noun "employee" — it is an adjective.
86.(a) Correct punctuation uses commas to set off the non-restrictive clause: The report, which was submitted late, was rejected.
87.(a) Passive form: The lesson will be explained by the teacher.
88.(a) Palindrome is a word that reads the same forwards and backwards.
89.(a) "To cost an arm and a leg" means to be very expensive.
90.(a) "Were" should be "was" since "scenery" is an uncountable singular noun.
91.(a) "University" begins with a consonant sound (/j/), so it takes "A."
92.(a) "Harass" is spelt with a single 'r' and double 's'.
93.(a) "From...to" is the correct idiomatic usage for a range of times.
94.(a) Lucid means clear and easy to understand.
95.(a) Extravagant is the antonym of frugal.
96.(a) Correct order: RPSQ — "Regular sleep is considered essential for good health."
97.(a) Correct punctuation: No, thank you, I am not hungry.
98.(a) "Has" should be "have" since "a number of students" takes a plural verb.
99.(a) Novice means one who is new to a profession.
100.(a) "To throw in the towel" means to give up.