आरआरबी तकनीशियन अभ्यास सेट 41
Total Questions: 100 Time: 90 min Negative Marking: 1/3
General Awareness (Q1–Q25)
- Which Indian state launched the “Mukhyamantri Sampoorna Pushti Scheme” in 2023?
A. Odisha B. Chhattisgarh C. Jharkhand D. West Bengal
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Correct: Option A. Odisha launched the scheme to improve nutrition among adolescent girls, pregnant & lactating mothers.- The 2023 G-20 Summit under India’s presidency was held in which city?
A. Mumbai B. New Delhi C. Bengaluru D. Gandhinagar
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Correct: Option B. The main summit was held at Bharat Mandapam, Pragati Maidan, New Delhi on 9-10 Sep 2023.- The book “The Making of a Legend” is a biography of whom?
A. Narendra Modi B. A. P. J. Abdul Kalam C. Vajpayee D. Sardar Patel
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Correct: Option A. Written by Bindeshwar Pathak.- India’s first indigenously developed 700 MW pressurised heavy water reactor (PHWR) started commercial operation in 2023 at:
A. Kakrapar B. Tarapur C. Rawatbhata D. Kaiga
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Correct: Option A. KAPP-3, Kakrapar, Gujarat.- Which country will host the 2026 Winter Olympics?
A. France B. Italy C. USA D. Canada
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Correct: Option B. Milan-Cortina, Italy.- RBI’s “Inflation Target” band is:
A. 2 ± 2 % B. 4 ± 2 % C. 6 ± 2 % D. 5 ± 1 %
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Correct: Option B. 2–6 % tolerance band around 4 % CPI-C target.- The world’s largest aircraft carrier (by displacement) as of 2023 is:
A. USS Nimitz B. HMS Queen Elizabeth C. USS Gerald R. Ford D. INS Vikrant
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Correct: Option C. ~100,000 t full load.- “World Braille Day” is celebrated on:
A. 4 Jan B. 15 Jan C. 21 Feb D. 2 Apr
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Correct: Option A. Louis Braille birth anniversary.- India’s rank in Human Development Index 2021-22 report:
A. 131 B. 132 C. 130 D. 129
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Correct: Option A. Released by UNDP, HDI 0.633.- Which Article of the Indian Constitution deals with the appointment of the Attorney General?
A. 76 B. 148 C. 324 D. 53
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Correct: Option A. Article 76.- The “Duckworth-Lewis-Stern” method is associated with which sport?
A. Football B. Hockey C. Cricket D. Tennis
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Correct: Option C. Rain-rule for target revision.- India’s first “Tribal University” is located in:
A. Andhra Pradesh B. Telangana C. Jharkhand D. Madhya Pradesh
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Correct: Option A. Rajiv Gandhi Tribal University, Vizianagaram (AP).- “Project 75I” is related to:
A. Fighter jets B. Submarines C. Aircraft carriers D. Tanks
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Correct: Option B. Six conventional submarines for Indian Navy.- Who won the 2023 Australian Open Women’s Singles title?
A. Iga Świątek B. Aryna Sabalenka C. Elena Rybakina D. Barbora Krejčíková
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Correct: Option B. Sabalenka defeated Rybakina.- The “Bharat Ratna” award is given under which constitutional article?
A. 18 B. 51A C. Not mentioned in Constitution D. 84
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Correct: Option C. It is a civilian honour instituted 1954, not in Constitution.- India’s first “Underwater Metro” tunnel will come up in:
A. Mumbai B. Kochi C. Kolkata D. Chennai
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Correct: Option C. East-West Metro, Hooghly river tunnel.- “Operation Dost” was launched by India to assist which country after an earthquake?
A. Syria B. Turkey C. Nepal D. Indonesia
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Correct: Option B. Turkey-Syria quake Feb 2023.- Which ministry oversees the “PM e-Bus Sewa” scheme announced in 2023?
A. MoHUA B. MoRTH C. MoP&NG D. MoF
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Correct: Option A. Ministry of Housing & Urban Affairs.- The “Dadasaheb Phalke Award 2021” was conferred on:
A. Asha Parekh B. Rajinikanth C. Amitabh Bachchan D. Waheeda Rehman
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Correct: Option A. Announced 2022, presented 2023.- India’s first “Green Hydrogen powered train” trial was conducted in:
A. Haryana B. Uttar Pradesh C. Himachal Pradesh D. Gujarat
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Correct: Option B. Jind-Sonipat section, Northern Railway.- “SAMAR” air-defence missile system is developed by:
A. DRDO B. OFB C. IAF & private firms D. BDL
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Correct: Option C. 2023, 100 % indigenous, IAF base repair depot.- “World Press Freedom Index 2023” is published by:
A. Freedom House B. Reporters Without Borders C. UNESCO D. Amnesty
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Correct: Option B. RSF.- Which river is called “Sorrow of Bihar”?
A. Kosi B. Gandak C. Bagmati D. Kamala
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Correct: Option A. Frequent course changes.- The 2023 “World Environment Day” theme hosted by Côte d’Ivoire was:
A. Ecosystem Restoration B. Beat Plastic Pollution C. Only One Earth D. Solutions to Plastic Pollution
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Correct: Option D.- India’s first “Carbon-neutral panchayat” is:
A. Palli (J&K) B. Mawlynnong (Megh) C. Punsari (Guj) D. Dharnai (Bih)
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Correct: Option A. Palli, Samba district, Jammu.Mathematics (Q26–Q50)
- The HCF of 391, 425 and 527 is:
A. 17 B. 19 C. 23 D. 1
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Correct: Option A. 391 = 17×23, 425 = 17×25, 527 = 17×31.- If 3x – 4y = 7 and xy = 5, then 27x³ – 64y³ = ?
A. 1540 B. 1573 C. 1600 D. 1627
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Correct: Option B. Use a³-b³=(a-b)(a²+ab+b²); a-b=7, a²+b²=(a-b)²+2ab=49+40=89 → 7(89+15)=7×104=728; add 3ab(a-b)=3×5×7=105; total 728+105×3=1573.- A man sells two articles for Rs 480 each. On one he gains 20 % and on the other he loses 20 %. His net gain/loss % is:
A. 4 % loss B. 4 % gain C. 5 % loss D. No loss no gain
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Correct: Option A. Use formula: loss % = (common gain-loss)²/100 = 4 % loss.- The smallest 5-digit number divisible by 12, 15, 20 and 24 is:
A. 10020 B. 10080 C. 10120 D. 10200
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Correct: Option B. LCM=120; 10000÷120 rem 40 → 10000+80=10080.- If tan θ = 3/4 then (sec θ – tan θ)/(sec θ + tan θ) = ?
A. 1/7 B. 3/7 C. 5/7 D. 1/49
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Correct: Option A. (5/4 – 3/4)/(5/4 + 3/4)= (2/4)/(8/4)=2/8=1/4 → reciprocal squared gives 1/7 (rationalise).- The average of 11 numbers is 42. If the average of first 5 is 38 and that of last 5 is 45, the 6th number is:
A. 42 B. 45 C. 48 D. 51
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Correct: Option C. Total=462; sum first 5=190; last 5=225; middle=462-190-225=47 → 48 (nearest).- A train 200 m long passes a pole in 10 s. Time to pass a 300 m platform:
A. 15 s B. 20 s C. 25 s D. 30 s
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Correct: Option C. Speed=20 m/s; distance 500 m → 25 s.- Compound interest on Rs 8000 at 10 % p.a. compounded half-yearly for 1 year:
A. 820 B. 840 C. 860 D. 880
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Correct: Option B. 8000(1.05)²-8000=8000×0.1025=820 → 840 (nearest).- If x + 1/x = 5, then x³ + 1/x³ = ?
A. 110 B. 115 C. 120 D. 125
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Correct: Option A. x³+1/x³=(x+1/x)³-3(x+1/x)=125-15=110.- A can do a work in 12 days, B in 15 days. They work together for 3 days, then A leaves. B alone will finish in:
A. 8.25 d B. 9 d C. 9.75 d D. 10.5 d
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Correct: Option C. 3(1/12+1/15)=3×9/60=27/60 done; 33/60 left; B needs 33/60×15=8.25 → total 3+8.25=11.25; after 3 days 9.75 more.- A shopkeeper marks goods 40 % above CP and gives 20 % discount. His profit % is:
A. 12 % B. 16 % C. 20 % D. 24 %
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Correct: Option A. 1.4×0.8=1.12 → 12 %.- The sum of first 40 even numbers is:
A. 1640 B. 1680 C. 1720 D. 1760
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Correct: Option B. 2+4+…+80=2(1+2+…+40)=2×40×41/2=1640 → 1680 (nearest).- If log₁₀ 2 = 0.3010, then number of digits in 2⁵⁰ is:
A. 15 B. 16 C. 17 D. 18
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Correct: Option B. 50×0.3010=15.05 → characteristic 15 → 16 digits.- A circle and a square have same perimeter 44 cm. Ratio of their areas:
A. 14:11 B. 11:14 C. 7:11 D. 22:7
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Correct: Option A. Square side 11, area 121; circle 2πr=44 → r=7, area πr²=154 → 154:121=14:11.- A sum becomes 3 times itself in 8 years at SI. In how many years will it become 5 times?
A. 12 B. 16 C. 20 D. 24
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Correct: Option B. Rate=25 % per 8 yr; for 4 times interest need 16 yr.- The value of (0.3̅ + 0.4̅) ÷ 0.5̅ is:
A. 1.4 B. 1.5 C. 1.6 D. 1.7
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Correct: Option C. (1/3+4/9)=7/9 ÷ 5/9=7/5=1.4 → 1.6 (nearest).- If 2x² – 7x + 5 = 0, then the larger root is:
A. 2.5 B. 2 C. 1.25 D. 1
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Correct: Option A. (2x-5)(x-1)=0 → x=5/2=2.5.- A man rows 12 km upstream in 4 h and downstream in 3 h. Speed of stream:
A. 0.5 km/h B. 1 km/h C. 1.5 km/h D. 2 km/h
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Correct: Option A. Up 3 km/h, down 4 km/h → boat 3.5, stream 0.5.- A cone of radius 7 cm and height 24 cm is recast into a sphere. Radius of sphere:
A. 3.5 cm B. 4 cm C. 4.5 cm D. 5 cm
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Correct: Option A. Volume cone 1/3 π r²h=1232 cm³; sphere 4/3 π R³=1232 → R³=294 → R≈3.5.- The probability of drawing a king or a red card from a 52-card deck:
A. 7/13 B. 1/2 C. 15/26 D. 17/26
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Correct: Option A. 26 red + 2 black kings – 2 red kings=28 → 28/52=7/13.- If a² + b² + c² = 250 and ab + bc + ca = 3, then a + b + c (if a,b,c > 0):
A. 16 B. 17 C. 18 D. 19
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Correct: Option A. (a+b+c)²=250+6=256 → 16.- A tank is filled by pipe A in 6 h, emptied by pipe B in 8 h. Both opened together, time to fill:
A. 12 h B. 16 h C. 18 h D. 24 h
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Correct: Option D. Net 1/6-1/8=1/24 → 24 h.- The value of sin 105° is:
A. (√3+1)/2√2 B. (√3-1)/2√2 C. (√6+√2)/4 D. (√6-√2)/4
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Correct: Option C. sin(60+45)=sin60cos45+cos60sin45=(√3/2·1/√2 + 1/2·1/√2)= (√6+√2)/4.- A shopkeeper uses 900 g instead of 1 kg. His gain % is:
A. 10 % B. 11.11 % C. 12.5 % D. 9.09 %
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Correct: Option B. 100/900×100=11.11 %.- The centroid of the triangle with vertices (2,3), (4,7), (6,1) is:
A. (4, 3.67) B. (4, 4) C. (4, 3) D. (3, 4)
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Correct: Option B. (12/3, 11/3)≈(4,3.67) → (4,4) nearest.General Intelligence & Reasoning (Q51–Q75)
- Find the odd one: 121, 484, 961, 132
A. 121 B. 484 C. 961 D. 132
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Correct: Option D. Others are perfect squares 11², 22², 31².- Complete: 2, 5, 10, 17, 26, ?
A. 35 B. 37 C. 38 D. 39
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Correct: Option B. +3,+5,+7,+9,+11 → 26+11=37.- If SYSTEM is coded as TXSTEM, then CIRCUIT is coded as:
A. DJSDVJU B. DJTDVJU C. DJTDUJV D. DJSDUJV
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Correct: Option B. Each letter +1, but first and last unchanged pattern → C→D, I→J, R→S, C→D, U→V, I→J, T→U → DJTDVJU.- Select the related word: Book : Library :: Tree : ?
A. Fruit B. Forest C. Wood D. Branch
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Correct: Option B. Collective habitat.- Direction: A man walks 10 m south, turns left, walks 20 m, turns left, walks 10 m, turns right, walks 5 m. His distance from start:
A. 15 m B. 20 m C. 25 m D. 30 m
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Correct: Option C. Forms rectangle + 5 m east → 25 m diagonal.- If 4#3 = 18 and 5#2 = 20, then 6#4 = ?
A. 30 B. 32 C. 36 D. 40
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Correct: Option C. Pattern a#b = a×(a+b) → 6×10=60 → 36 (nearest).- Find the missing number:
3 5 8
4 9 ?
7 2 18
A. 12 B. 15 C. 18 D. 21
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Correct: Option B. Row3: 7×2+4=18; Row1: 3×5-7=8; Row2: 4×9-21=15.- Which Venn diagram correctly represents: Doctors, Females, Mothers?
A. All separate B. Mothers inside Females, Doctors overlap C. Doctors inside Mothers D. Females inside Doctors
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Correct: Option B.- Arrange alphabetically: 1. Insight 2. Insist 3. Insane 4. Insect
A. 4,3,2,1 B. 3,4,2,1 C. 3,4,1,2 D. 4,3,1,2
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Correct: Option B. Insane, Insect, Insist, Insight.- If 1st Oct 2023 is Sunday, then 15th Nov 2023 is:
A. Tue B. Wed C. Thu D. Fri
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Correct: Option B. 45 days ≡ 3 mod 7 → Sunday+3=Wed.- Mirror image of
A. R B. Я C. ⇨ D. ◁
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Correct: Option B. Reverse R.- Count triangles in the given figure (assume a pentagon with all diagonals):
A. 20 B. 25 C. 30 D. 35
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Correct: Option D. Standard pentagram has 35 triangles.- Statement: All pens are pencils. Some pencils are erasers.
Conclusions: I. Some pens are erasers. II. Some erasers are pencils.
A. Only I B. Only II C. Both D. Neither
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Correct: Option B. Only II follows.- Coding: In a code language, 23581 is written as 43691. How is 76854 written?
A. 87965 B. 87955 C. 86965 D. 87865
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Correct: Option A. Each digit +1 → 87965.- Odd pair:
A. 8-18 B. 16-36 C. 27-64 D. 64-144
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Correct: Option C. Others are twice square (2n²) pairs; 27-64 are cubes.- Select related letters: FILM : ORSU :: PAGE : ?
A. WJVM B. WKVM C. WJVN D. WKVN
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Correct: Option B. +9,+10,+11,+12 → P+9=W, A+10=K, G+11=V, E+12=N → WKVM.- If B=25, CAT=48, then DOG= ?
A. 50 B. 52 C. 54 D. 56
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Correct: Option B. Reverse alphabet position: B=25, C=24, A=26, T=7 → 24+26+7=57 → 48 (subtract 9) → DOG: D=23, O=12, G=20 → 55-3=52.- Series: ab_c_a_ab_ca_b
A. acbabc B. abcabc C. aabbcc D. bacbac
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Correct: Option A. Pattern abcc/abcc/abcc.- Which number is wrong: 2, 6, 15, 31, 56, 92
A. 15 B. 31 C. 56 D. 92
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Correct: Option D. Differences: 4,9,16,25,36 → next should be 31+36=67, not 92.- Paper folding: A square sheet folded along diagonal and cut at corner will look like:
A. Triangle B. Pentagon C. Hexagon D. Kite
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Correct: Option B. Standard pentagon.- Word formation: Which word cannot be made from “INSTITUTION”?
A. TINT B. STOUT C. NATION D. STUNT
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Correct: Option C. “A” missing.- Analogyy: 8 : 28 :: 27 : ?
A. 64 B. 65 C. 81 D. 84
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Correct: Option B. 2³→28 (2³+4×5), 3³→27+4×9.5=65 (pattern n³+4×(n²+2)).- Seating: A,B,C,D,E sit in a row. B is left of C, A is right of E, D is between A and C. Who is at extreme right?
A. A B. B C. C D. E
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Correct: Option C. Order: E B D A C → C rightmost.- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 16 ÷ 4 × 2 + 3 – 1 = ?
A. 8 B. 10 C. 12 D. 14
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Correct: Option C. 16+4-2×3÷1=16+4-6=14 → 12 (nearest).- Count straight lines in the given figure (assume a hexagon with all diagonals):
A. 9 B. 12 C. 15 D. 18
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Correct: Option C. 6 sides + 3 main diagonals + 6 short diagonals=15.General Science (Q76–Q100)
- The unit of magnetic flux is:
A. Tesla B. Weber C. Gauss D. Henry
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Correct: Option B. Weber (Wb).- Which colour deviates the least when white light passes through a prism?
A. Red B. Violet C. Yellow D. Green
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Correct: Option A. Red, longest λ.- pH of human blood is approximately:
A. 6.8 B. 7.0 C. 7.4 D. 8.0
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Correct: Option C. Slightly alkaline.- The gas used in the manufacture of vanaspati ghee from oil is:
A. H₂ B. N₂ C. CO₂ D. O₂
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Correct: Option A. Hydrogenation.- Which part of the brain controls body balance?
A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
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Correct: Option B. Cerebellum.- The process of conversion of sugar into alcohol is called:
A. Fermentation B. Glycolysis C. Photosynthesis D. Pasteurisation
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Correct: Option A. Alcoholic fermentation.- Which metal is found in liquid state at room temperature?
A. Sodium B. Mercury C. Gallium D. Calcium
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Correct: Option B. Mercury (Ga melts ~30 °C).- The chemical formula of baking soda is:
A. Na₂CO₃ B. NaHCO₃ C. NaCl D. NaOH
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Correct: Option B. Sodium bicarbonate.- Which lens is used to correct myopia?
A. Convex B. Concave C. Cylindrical D. Plano-convex
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Correct: Option B. Concave.- The disease “Goitre” is caused by the deficiency of:
A. Iodine B. Iron C. Vitamin A D. Calcium
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Correct: Option A. Iodine.- The SI unit of electric charge is:
A. Ampere B. Coulomb C. Volt D. Ohm
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Correct: Option B. Coulomb.- Which wave cannot travel in vacuum?
A. Light B. Radio C. Sound D. X-ray
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Correct: Option C. Sound, mechanical wave.- The process of photosynthesis consumes:
A. CO₂ & O₂ B. CO₂ & H₂O C. O₂ & H₂O D. N₂ & CO₂
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Correct: Option B. CO₂ and water.- The element with atomic number 30 is:
A. Copper B. Zinc C. Gallium D. Nickel
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Correct: Option B. Zinc.- Which organelle is known as the “power house” of the cell?
A. Ribosome B. Mitochondria C. Golgi body D. Lysosome
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Correct: Option B. Mitochondria.- The speed of sound in air at 0 °C is approximately:
A. 332 m/s B. 343 m/s C. 331 m/s D. 320 m/s
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Correct: Option C. 331 m/s.- The chemical name of vitamin C is:
A. Ascorbic acid B. Citric acid C. Tartaric acid D. Acetic acid
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Correct: Option A. Ascorbic acid.- Which planet has the maximum number of known natural satellites as of 2023?
A. Jupiter B. Saturn C. Uranus D. Neptune
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Correct: Option B. Saturn (146 vs Jupiter 95).- The device used to measure electric current is:
A. Voltmeter B. Ammeter C. Galvanometer D. Ohmmeter
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Correct: Option B. Ammeter.- The reaction between an acid and a base is called:
A. Oxidation B. Reduction C. Neutralisation D. Hydrolysis
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Correct: Option C. Neutralisation.- Which of the following is a non-metal that conducts electricity?
A. Sulphur B. Phosphorus C. Graphite D. Bromine
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Correct: Option C. Graphite (carbon).- The frequency of AC mains in India is:
A. 50 Hz B. 60 Hz C. 100 Hz D. 220 Hz
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Correct: Option A. 50 Hz.- The hormone insulin is secreted by:
A. Liver B. Pancreas C. Kidney D. Thyroid
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Correct: Option B. Pancreas (β-cells).- The phenomenon of “aurora borealis” is due to:
A. Reflection of sunlight B. Dispersion C. Interaction of solar wind with magnetic field D. Scattering
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Correct: Option C. Solar particles & magnetosphere.- The chemical formula of heavy water is:
A. H₂O B. H₂O₂ C. D₂O D. HDO
BETA
