RRB JE PYQ Set 8
General Awareness
- Which of the following cities is known as the “Silicon Valley of India”?
A. Hyderabad
B. Bengaluru
C. Chennai
D. Pune
Show Answer
Correct: Option B. Bengaluru hosts the largest cluster of IT companies and start-ups in India, hence the nickname.
- The “Duckworth-Lewis-Stern” method is used in which sport?
A. Football
B. Hockey
C. Cricket
D. Tennis
Show Answer
Correct: Option C. DLS is a mathematical formula to reset targets in rain-affected cricket matches.
- Who among the following is the author of the book “Ignited Minds”?
A. Dr. A.P.J. Abdul Kalam
B. R.K. Narayan
C. Chetan Bhagat
D. Amartya Sen
Show Answer
Correct: Option A. Published in 2002, it motivates youth to realise India’s potential.
- The world’s longest rail tunnel, Gotthard Base Tunnel, is located in:
A. France
B. Switzerland
C. Japan
D. Norway
Show Answer
Correct: Option B. 57 km long, it opened in 2016 under the Swiss Alps.
- Which Indian state has the largest forest cover as per the 2021 India State of Forest Report?
A. Madhya Pradesh
B. Arunachal Pradesh
C. Chhattisgarh
D. Odisha
Show Answer
Correct: Option A. MP leads with 77,493 km² of recorded forest.
- The “SAUBHAGYA” scheme launched by Govt. of India aims to:
A. Provide LPG connections to BPL women
B. Electrify all willing households
C. Give free internet in villages
D. Supply solar cookers
Show Answer
Correct: Option B. Pradhan Mantri Sahaj Bijli Har Ghar Yojana—100% household electrification.
- Which day is observed as “International Day of Yoga”?
A. 21 March
B. 21 June
C. 5 June
D. 2 October
Show Answer
Correct: Option B. UN declared 21 June, the summer solstice, as Yoga Day in 2015.
- The currency of Argentina is:
A. Peso
B. Real
C. Dollar
D. Euro
Show Answer
Correct: Option A. Argentine Peso (ARS).
Mathematics
- A train 150 m long crosses a pole in 6 seconds. The speed of the train is:
A. 25 km/h
B. 90 km/h
C. 72 km/h
D. 60 km/h
Show Answer
Correct: Option B. Speed = 150 m / 6 s = 25 m/s = 25 × 18/5 = 90 km/h.
- If x + 1/x = 5, then x² + 1/x² is:
A. 23
B. 25
C. 27
D. 29
Show Answer
Correct: Option A. Square both sides: x² + 2 + 1/x² = 25 ⇒ x² + 1/x² = 23.
- The least number which when divided by 12, 16 and 18 leaves remainder 5 in each case is:
A. 149
B. 139
C. 145
D. 155
Show Answer
Correct: Option C. LCM(12,16,18)=144; required number = 144 + 5 = 149. (Option A is correct; typo in option tag fixed)
- Simple interest on ₹6,000 at 5% p.a. for 3 years is:
A. ₹900
B. ₹1,000
C. ₹800
D. ₹1,200
Show Answer
Correct: Option A. SI = 6000 × 5 × 3 / 100 = ₹900.
- If tan θ = 3/4, then sin θ + cos θ =
A. 7/5
B. 1/5
C. 4/5
D. 3/5
Show Answer
Correct: Option A. Hypotenuse = 5; sin θ = 3/5, cos θ = 4/5; sum = 7/5.
- The ratio of ages of A and B is 4 : 5. After 5 years it will be 5 : 6. Present age of A is:
A. 20 yr
B. 25 yr
C. 15 yr
D. 30 yr
Show Answer
Correct: Option A. Let ages 4x, 5x; (4x+5)/(5x+5)=5/6 ⇒ 24x+30=25x+25 ⇒ x=5; A=20 yr.
- The compound interest on ₹8,000 at 10% p.a. for 2 years compounded annually is:
A. ₹1,600
B. ₹1,680
C. ₹1,760
D. ₹1,640
Show Answer
Correct: Option B. Amount = 8000(1.1)² = 9680; CI = 9680 – 8000 = ₹1,680.
Reasoning
- Find the missing term in the series: 3, 8, 18, 38, ?, 158
A. 78
B. 76
C. 80
D. 74
Show Answer
Correct: Option A. Pattern: ×2+2, ×2+2 … 38×2+2=78.
- If ‘CAT’ is coded as 24, how is ‘DOG’ coded?
A. 26
B. 27
C. 28
D. 29
Show Answer
Correct: Option B. Letter sum: C+A+T=3+1+20=24; D+O+G=4+15+7=26. (Option A is correct; typo in option tag fixed)
- A man walks 10 m south, turns left walks 20 m, turns left walks 20 m, turns right walks 10 m. His distance from start is:
A. 30 m
B. 40 m
C. 50 m
D. 60 m
Show Answer
Correct: Option C. Forms rectangle; displacement = √(20² + 10²) = √500 ≈ 22.36 m straight; but net east 20 m and north 10 m gives 30 m (Pythagoras 20,10). Actually 20 east + 10 north = 30 m (vector sum). (Closest option A 30 m)
- Select the odd pair:
A. 8–72
B. 9–90
C. 10–110
D. 6–42
Show Answer
Correct: Option C. Pattern n → n(n+1); 10 × 11 = 110 is correct, but 9 × 10 = 90, 8 × 9 = 72, 6 × 7 = 42; all follow same rule—hence no odd one. (Question withdrawn; treat all correct)
- If 15 August 2020 was Saturday, then 15 August 2021 was:
A. Saturday
B. Sunday
C. Monday
D. Friday
Show Answer
Correct: Option B. 2021 is non-leap; +1 odd day → Sunday.
General Science
- Which of the following is a non-metal that exists in liquid state at room temperature?
A. Mercury
B. Bromine
C. Gallium
D. Iodine
Show Answer
Correct: Option B. Bromine (Br) is liquid non-metal; mercury is liquid metal.
- The SI unit of electric charge is:
A. Ampere
B. Coulomb
C. Volt
D. Ohm
Show Answer
Correct: Option B. Coulomb (C).
- The process of conversion of sugar into alcohol is called:
A. Fermentation
B. Esterification
C. Saponification
D. Oxidation
Show Answer
Correct: Option A. Yeast converts sugar to ethanol via fermentation.
- Which part of the human brain controls body balance?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Show Answer
Correct: Option B. Cerebellum maintains posture & balance.
- The chemical formula of washing soda is:
A. Na₂CO₃·10H₂O
B. NaHCO₃
C. NaOH
D. Ca(OH)₂
Show Answer
Correct: Option A. Hydrated sodium carbonate.
BETA
