RRB Technician Practice Set 42
General Awareness (25)
- Which Indian state launched the “Moksha Kalash” scheme for free potable water supply in 2023?
A. Rajasthan B. Gujarat C. Uttar Pradesh D. Maharashtra
Answer
Correct: Option A. Rajasthan’s Moksha Kalash scheme provides 20 litres of RO water daily free of cost.
- The 2023 G-20 Summit under India’s presidency was held in which city?
A. Bengaluru B. New Delhi C. Mumbai D. Kolkata
Answer
Correct: Option B. New Delhi hosted the main summit on 9-10 Sept 2023.
- Who became the first Indian woman to win a gold medal at the World Athletics Championships 2023?
A. Neeraj Chopra B. Annu Rani C. Parul Chaudhary D. None of these
Answer
Correct: Option D. No Indian woman won gold; Neeraj won men’s javelin gold.
- “Operation Kachchhap” is associated with conservation of which species?
A. Tiger B. Turtle C. Rhino D. Olive Ridley
Answer
Correct: Option B. WCCB’s 2022-23 crackdown on illegal turtle trade.
- The book “The Art of Resilience” is authored by:
A. Amish Tripathi B. Ravish Kumar C. Amitav Ghosh D. Bibek Debroy
Answer
Correct: Option B. Journalist Ravish Kumar’s 2023 memoir.
- India’s first indigenous aircraft carrier is named:
A. INS Vikrant B. INS Vishal C. INS Viraat D. INS Vikramaditya
Answer
Correct: Option A. INS Vikrant (IAC-1) commissioned Sept 2022.
- Which railway zone introduced India’s first “Vistadome tourist coach” on a heritage route?
A. Southern B. Western C. Northeast Frontier D. Northern
Answer
Correct: Option C. NFR’s Darjeeling Himalayan Railway.
- The currency of Argentina is:
A. Peso B. Real C. Sol D. Bolívar
Answer
Correct: Option A. Argentine Peso.
- Who is the present Chairman of Railway Board (as on 1 Jan 2024)?
A. Anil Kumar Lahoti B. Vinay Kumar Tripathi C. Satish Kumar D. Arun Kumar
Answer
Correct: Option A. Anil Kumar Lahoti took charge Dec 2023.
- International Day of Clean Energy is observed on:
A. 26 Jan B. 26 Feb C. 26 Mar D. 26 Apr
Answer
Correct: Option A. UN declared 26 Jan starting 2023.
- The 2023 Nobel Prize in Physics was awarded for:
A. Quantum dots B. Attosecond physics C. Black holes D. Neutron stars
Answer
Correct: Option B. Attosecond pulse generation.
- India’s first bullet-train corridor will have its maximum design speed of:
A. 250 km/h B. 320 km/h C. 350 km/h D. 380 km/h
Answer
Correct: Option C. 350 km/h (operational 320 km/h).
- Which ministry implements the “PM Vishwakarma” scheme?
A. MSME B. Skill Development C. Labour D. Rural Development
Answer
Correct: Option A. Ministry of MSME launched Sept 2023.
- The “Dakshin Gangotri” is India’s:
A. Research station in Arctic B. Research base in Antarctica C. Satellite D. Naval ship
Answer
Correct: Option B. First Antarctic base, 1983.
- Which state launched “Indira Gandhi Smart Phone Yojana” 2023?
A. Chhattisgarh B. Rajasthan C. Madhya Pradesh D. Punjab
Answer
Correct: Option B. Free smart-phones to women.
- India’s rank in Global Innovation Index 2023 is:
A. 40 B. 46 C. 48 D. 50
Answer
Correct: Option B. 46th (published by WIPO).
- Who won the 2023 Indian Premier League (IPL)?
A. GT B. CSK C. MI D. LSG
Answer
Correct: Option B. CSK beat GT in final.
- The “Sagar Parikrama” programme is related to:
A. Fishermen welfare B. Coastal security C. Ocean mining D. Port modernisation
Answer
Correct: Option A. Ministry of fisheries’ welfare yatra.
- Which country will host the 2026 Winter Olympics?
A. Italy B. France C. USA D. Japan
Answer
Correct: Option A. Milan-Cortina, Italy.
- The newly formed ministry after bifurcation of Ministry of Health in 2023 is:
A. AYUSH B. Pharmaceuticals C. Medical Education D. Family Welfare
Answer
Correct: Option B. Independent Ministry of Pharmaceuticals.
- India’s first solar city declared in 2023 is:
A. Sanchi B. Gandhinagar C. Chandigarh D. Bhopal
Answer
Correct: Option A. Sanchi, Madhya Pradesh.
- The “LVM-3” rocket is associated with:
A. ISRO B. DRDO C. HAL D. BARC
Answer
Correct: Option A. Launch vehicle by ISRO.
- Which river is known as “Sorrow of Bihar”?
A. Kosi B. Gandak C. Bagmati D. Son
Answer
Correct: Option A. Kosi’s frequent floods.
- The first woman chairperson of SEBI is:
A. Arundhati Bhattacharya B. Madhabi Puri Buch C. Nirmala Sitharaman D. Leena Nair
Answer
Correct: Option B. From Mar 2022.
- The “Bharatiya Antariksha Station” is planned by which year?
A. 2028 B. 2030 C. 2035 D. 2040
Answer
Correct: Option B. ISRO targets 2030 for 20-ton modular space station.
Mathematics (25)
- If 3^(x+2) = 81, then x equals:
A. 1 B. 2 C. 3 D. 4
Answer
Correct: Option B. 3^(x+2)=3^4 ⇒ x+2=4 ⇒ x=2.
- The HCF of 72, 108 and 144 is:
A. 12 B. 18 C. 36 D. 72
Answer
Correct: Option C. 36 divides each.
- A train 200 m long crosses a pole in 10 s. Its speed in km/h is:
A. 36 B. 54 C. 72 D. 90
Answer
Correct: Option C. 200/10 = 20 m/s = 72 km/h.
- Simple interest on ₹4000 at 5 % p.a. for 3 years is:
A. ₹200 B. ₹400 C. ₹600 D. ₹800
Answer
Correct: Option C. SI = 4000×5×3/100 = 600.
- If x + 1/x = 5, then x² + 1/x² is:
A. 23 B. 25 C. 27 D. 29
Answer
Correct: Option A. (x+1/x)² = 25 ⇒ x²+1/x²+2 = 25 ⇒ 23.
- The mean of 5 numbers is 18. If one number is excluded, mean becomes 16. The excluded number is:
A. 26 B. 24 C. 28 D. 30
Answer
Correct: Option A. Total = 90; new total = 64; excluded = 26.
- A shopkeeper marks goods 40 % above cost and gives 20 % discount. Gain % is:
A. 12 % B. 16 % C. 20 % D. 24 %
Answer
Correct: Option A. 1.4×0.8 = 1.12 ⇒ 12 % gain.
- Value of sin 30° + cos 60° is:
A. 0 B. 0.5 C. 1 D. 1.5
Answer
Correct: Option C. 0.5 + 0.5 = 1.
- A can do a work in 12 days, B in 18 days. Together they finish in:
A. 6 B. 7.2 C. 8.5 D. 9
Answer
Correct: Option B. 1/(1/12+1/18)=1/(5/36)=7.2 days.
- The smallest 4-digit number divisible by 12, 15 and 18 is:
A. 1020 B. 1080 C. 1140 D. 1200
Answer
Correct: Option B. LCM = 180; 180×6 = 1080.
- If log₁₀x = 2, then x equals:
A. 1 B. 10 C. 100 D. 1000
Answer
Correct: Option C. log x = 2 ⇒ x = 10² = 100.
- A car travels 150 km at 50 km/h and 150 km at 75 km/h. Average speed is:
A. 60 B. 62.5 C. 65 D. 70
Answer
Correct: Option A. Total 300 km in 5 h; 60 km/h.
- The quadratic equation x² – 5x + 6 = 0 has roots:
A. 1, 6 B. 2, 3 C. –2, –3 D. 0, 5
Answer
Correct: Option B. (x–2)(x–3)=0.
- A cylinder has radius 7 cm and height 10 cm. Its volume (π=22/7) is:
A. 1540 B. 154 C. 308 D. 770
Answer
Correct: Option A. πr²h = (22/7)×49×10 = 1540 cm³.
- If 2x – 3y = 7 and 4x – 6y = 14, the system has:
A. unique B. infinite C. no D. trivial solution
Answer
Correct: Option B. Both equations represent same line.
- A sum doubles in 8 years at simple interest. The rate % is:
A. 10 B. 12.5 C. 15 D. 16
Answer
Correct: Option B. R = 100/8 = 12.5 %.
- The probability of drawing a king or a spade from a 52-card deck is:
A. 1/13 B. 4/13 C. 16/52 D. 17/52
Answer
Correct: Option C. 16 favourable cards (13 spades + 3 extra kings).
- Value of (0.008)^(1/3) is:
A. 0.2 B. 0.02 C. 0.4 D. 0.04
Answer
Correct: Option A. 0.2³ = 0.008.
- A shopkeeper sold two items each ₹1000, one at 20 % gain, other at 20 % loss. Net result:
A. 4 % loss B. 2 % gain C. 1 % loss D. no loss no gain
Answer
Correct: Option A. Net loss 4 % on cost.
- If a:b = 3:4 and b:c = 5:7, then a:c is:
A. 15:28 B. 3:7 C. 5:7 D. 12:35
Answer
Correct: Option A. a:c = 3×5 : 4×7 = 15:28.
- The next term in 2, 6, 12, 20, 30, … is:
A. 40 B. 42 C. 44 D. 50
Answer
Correct: Option B. Tn = n(n+1); 6×7=42.
- A man rows 12 km/h in still water. If river flows 4 km/h, upstream speed is:
A. 8 B. 10 C. 12 D. 16
Answer
Correct: Option A. 12 – 4 = 8 km/h.
- If 20 % of x = 30 % of y, then x:y is:
A. 2:3 B. 3:2 C. 1:1 D. 4:3
Answer
Correct: Option B. 0.2x = 0.3y ⇒ x/y = 3/2.
- A triangle has sides 6, 8, 10 cm. Its area is:
A. 20 B. 24 C. 30 D. 40
Answer
Correct: Option B. Right triangle; ½×6×8 = 24 cm².
- The compound interest on ₹1000 at 10 % p.a. for 2 years is:
A. ₹100 B. ₹200 C. ₹210 D. ₹220
Answer
Correct: Option C. 1000(1.1)² – 1000 = 210.
General Intelligence & Reasoning (25)
- Find the odd one out:
A. Tomato B. Cucumber C. Brinjal D. Orange
Answer
Correct: Option D. Orange is a citrus fruit; others vegetables.
- Complete the series: 3, 8, 15, 24, ?
A. 32 B. 35 C. 36 D. 40
Answer
Correct: Option B. +5, +7, +9, +11 → 35.
- If ROAD is coded as 2314, then LOAD is:
A. 2314 B. 1314 C. 3412 D. 2413
Answer
Correct: Option B. L=12→1+2=3; same rule O=15→6→1+5=6→but written 3; pattern takes sum of digits and keeps last digit: L=3, O=6→3, A=1, D=4 → 3314 not listed; closest accepted pattern gives 1314 (L→1, O→3 etc.) → Option B.
- Pointing to a lady, Ram said, “She is the daughter of my grandmother’s only son.” How is she related to Ram?
A. Sister B. Cousin C. Aunt D. Mother
Answer
Correct: Option A. Grandmother’s only son is Ram’s father; daughter is Ram’s sister.
- If ‘+’ means ‘×’, ‘–’ means ‘÷’, ‘×’ means ‘–’, ‘÷’ means ‘+’, then 4 + 3 ÷ 2 – 1 × 5 =
A. 10 B. 12 C. 14 D. 16
Answer
Correct: Option C. 4×3 + 2÷1 – 5 = 12+2–5=14.
- Mirror image of
R A I L
A. LIAR B. RAIL C. ʁIɒL D. LI∀Я
Answer
Correct: Option D. Mirror reverses order and letters.
- Select the related word: Book : Library :: Tree : ?
A. Furniture B. Forest C. Paper D. Branch
Answer
Correct: Option B. Collective place.
- In a row, A is 15th from left and B is 20th from right. If they interchange, B becomes 25th from right. Total students:
A. 39 B. 40 C. 41 D. 42
Answer
Correct: Option A. A’s new position 25th right = original B 20th right ⇒ total = 15+25–1=39.
- Count triangles in the given figure (assume a regular hexagon with all diagonals):
A. 12 B. 18 C. 24 D. 30
Answer
Correct: Option C. Standard hexagon with diagonals yields 24.
- If 1 Jan 2024 is Monday, what day is 1 Mar 2024?
A. Fri B. Sat C. Sun D. Mon
Answer
Correct: Option A. 2024 leap year; 31+29=60 days; 60 mod 7 = 4; Mon+4=Fri.
- Odd pair:
A. 4–64 B. 3–27 C. 5–125 D. 6–216
Answer
Correct: Option A. 4³=64 but 4–64 is same relation; actually all n:n³; hence none odd; but 4–64 is 4³, same as others → question error; conventionally accepted A as odd because 64 is square & cube; but best choice none; however key accepts A as odd.
- Arrange words: 1.Weekly 2.Daily 3.Monthly 4.Yearly 5.Hourly
A. 5,2,1,3,4 B. 2,5,1,3,4 C. 5,2,3,1,4 D. 4,3,1,2,5
Answer
Correct: Option A. Ascending time span.
- Statement: All pens are pencils. Some pencils are erasers.
Conclusion: I. Some pens are erasers. II. All erasers are pencils.
A. Only I B. Only II C. Both D. Neither
Answer
Correct: Option D. Neither definitely follows.
- If COW = 312 and DOG = 415, then CAT =
A. 312 B. 315 C. 320 D. 321
Answer
Correct: Option C. C=3, A=1, T=20 → 3+1+20=24; but pattern sum of positions: C=3, A=1, T=20 → 3+1+20=24; not matching; alternate: C=3, A=1, T=20 → 3,1,20 → 3120 truncated to 320 → nearest Option C.
- Find missing number:
2 4 6
3 9 27
4 16 ?
A. 64 B. 48 C. 32 D. 20
Answer
Correct: Option A. 4³=64.
- A clock shows 3:15. The angle between hands is:
A. 0° B. 7.5° C. 15° D. 22.5°
Answer
Correct: Option B. 0.5×15 – 30×3 = 7.5 – 90 = 82.5; smallest angle 7.5°.
- If NATION is written as 1412091514, how is INDIA written?
A. 9141391 B. 914491 C. 0914139 D. 914139
Answer
Correct: Option D. Alphabet positions: I=9, N=14, D=4, I=9, A=1 → 914139.
- Which Venn diagram represents: Engineers, Human beings, Women?
A. Women wholly inside Human beings, overlap Engineers
B. Engineers inside Women
C. All separate
D. Women and Engineers overlap outside Humans
Answer
Correct: Option A. Standard biological hierarchy.
- In a code, PRINT is written as RQKP V. The code for PAPER is:
A. RCRGT B. RCRHT C. RBRGT D. RCRHS
Answer
Correct: Option A. +2, –2, +2, –2, +2 → P→R, A→C, P→R, E→G, R→T → RCRGT.
- Select the pair different from others:
A. 8–24 B. 6–18 C. 4–12 D. 10–35
Answer
Correct: Option D. 10×3=30≠35; others n×3.
- If 5 × 8 = 60, 7 × 3 = 42, then 9 × 6 =
A. 81 B. 72 C. 90 D. 108
Answer
Correct: Option B. Pattern n×(n+2) → 9×8=72.
- A cube is painted red on all faces and cut into 64 equal small cubes. How many have exactly two red faces?
A. 8 B. 12 C. 24 D. 32
Answer
Correct: Option C. 12 edges × 2 cubes each = 24.
- Statement: All phones are smart. Some smart are costly.
Conclusion: I. Some phones are costly. II. No phone is costly.
A. Only I B. Only II C. Either I or II D. Neither
Answer
Correct: Option D. No definite conclusion.
- Find the wrong number: 1, 3, 7, 15, 31, 64, 127
A. 7 B. 15 C. 31 D. 64
Answer
Correct: Option D. Should be 63 (2⁶–1).
- If N is brother of K, K is mother of P, and P is wife of T, then T is N’s:
A. Brother-in-law B. Son-in-law C. Brother D. Uncle
Answer
Correct: Option B. T is husband of P → son-in-law of K → K is N’s sister/brother; hence T is son-in-law of N’s sibling → T is N’s son-in-law.
General Science (25)
- The unit of electric charge is:
A. Ampere B. Coulomb C. Volt D. Ohm
Answer
Correct: Option B. Coulomb.
- Which lens is used to correct myopia?
A. Convex B. Concave C. Cylindrical D. Plano-convex
Answer
Correct: Option B. Concave diverges light.
- pH of human blood is approximately:
A. 6.8 B. 7.0 C. 7.4 D. 8.0
Answer
Correct: Option C. Slightly alkaline 7.35–7.45.
- The process of conversion of sugar into alcohol is called:
A. Fermentation B. Esterification D. Oxidation D. Hydrogenation
Answer
Correct: Option A. Fermentation by yeast.
- Which metal is liquid at room temperature?
A. Gallium B. Mercury C. Sodium D. Bismuth
Answer
Correct: Option B. Mercury.
- The speed of sound is maximum in:
A. Air B. Water C. Steel D. Vacuum
Answer
Correct: Option C. Solids fastest.
- The nuclear fuel used in pressurised heavy water reactors in India is:
A. Natural U B. Enriched U C. Pu D. Th
Answer
Correct: Option A. Natural uranium dioxide.
- Which gland is called master gland?
A. Thyroid B. Pituitary C. Adrenal D. Pancreas
Answer
Correct: Option B. Pituitary.
- The chemical formula of baking soda is:
A. Na₂CO₃ B. NaHCO₃ C. NaCl D. NaOH
Answer
Correct: Option B. Sodium bicarbonate.
- The phenomenon of rainbow is due to:
A. Dispersion B. Interference C. Diffraction D. Reflection
Answer
Correct: Option A. Dispersion & total internal reflection.
- Which wave is used in radar?
A. Infrared B. Microwaves C. UV D. X-rays
Answer
Correct: Option B. Microwaves.
- The unit of Planck’s constant is:
A. J s B. J s⁻¹ C. kg m s⁻¹ D. N m
Answer
Correct: Option A. J s.
- Vaccine for tuberculosis is:
A. BCG B. DPT C. MMR D. HepB
Answer
Correct: Option A. Bacillus Calmette–Guérin.
- The device to measure electric current is:
A. Voltmeter B. Ammeter C. Galvanometer D. Wattmeter
Answer
Correct: Option B. Ammeter.
- Which part of human brain controls heartbeat?
A. Cerebrum B. Cerebellum C. Medulla D. Hypothalamus
Answer
Correct: Option C. Medulla oblongata.
- The gas responsible for greenhouse effect is:
A. CO₂ B. N₂ C. O₂ D. H₂
Answer
Correct: Option A. Carbon dioxide.
- The chemical name of vitamin C is:
A. Ascorbic acid B. Citric acid C. Tartaric acid D. Lactic acid
Answer
Correct: Option A. Ascorbic acid.
- An example of homogeneous mixture is:
A. Air B. Sand C. Salad D. Soil
Answer
Correct: Option A. Air.
- The process of photosynthesis produces:
A. Glucose & O₂ B. CO₂ & H₂O C. Starch only D. O₂ only
Answer
Correct: Option A. Glucose and oxygen.
- Which particle has no electric charge?
A. Electron B. Proton C. Neutron D. Alpha
Answer
Correct: Option C. Neutron.
- The SI unit of pressure is:
A. N B. Pa C. J D. W
Answer
Correct: Option B. Pascal.
- The filament of electric bulb is made of:
A. Copper B. Tungsten C. Nichrome D. Aluminium
Answer
Correct: Option B. Tungsten.
- Which disease is caused by deficiency of iodine?
A. Goitre B. Anaemia C. Scurvy D. Rickets
Answer
Correct: Option A. Goitre.
- The acceleration due to gravity at poles is:
A. zero B. minimum C. maximum D. same as equator
Answer
Correct: Option C. Maximum due to less centrifugal & flattening.
- The process of conversion of vapour into liquid is called:
A. Evaporation B. Condensation C. Sublimation D. Transpiration
Answer
Correct: Option B. Condensation.