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RRB JE CBT-1 PYQ 18 Dec 2024, Shift 1 (9:00 AM)

All 100 questions of RRB JE CBT-1 PYQ 18 Dec 2024, Shift 1 (9:00 AM) with the correct answer from the official answer key and a solution. Read them free on UTpaper, or attempt the paper as a timed online test.

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Q1RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Write the expanded form of (6a + 2b + 7c)².
  1. A36a² + 4b² + 49c² + 28ab + 28bc + 84ac
  2. B36a² + 4b² + 49c² + 24ab + 28bc + 94ac
  3. C36a² + 4b² + 49c² + 24ab + 23bc + 84ac
  4. D36a² + 4b² + 49c² + 24ab + 28bc + 84ac
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Correct answer: (D) 36a² + 4b² + 49c² + 24ab + 28bc + 84ac

Q2RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged? 34 ÷ 33 × 22 + 19 − 40 = ?
  1. A74
  2. B72
  3. C73
  4. D70
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Correct answer: (B) 72

Q3RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number result(s) in the second number. Similarly, certain mathematical operation(s) on the second number result(s) in the third number and so on. Which of the given options follows the same set of operations as in the given sets? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting /multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) 19-57-114-134; 21-63-126-146
  1. A18-54-108-118
  2. B17-51-102-112
  3. C20-60-120-180
  4. D16-48-96-116
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Correct answer: (D) 16-48-96-116

Q4RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Tapan starts from Point A and drives 8 km towards the south. He then takes a right turn, drives 5 km, turns right and drives 12 km. He then takes a right turn and drives 9 km. He takes a final right turn, drives 4 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90° turns only unless specified.)
  1. A4 km to the west
  2. B7 km to the west
  3. C5 km to the west
  4. D6 km to the west
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Correct answer: (A) 4 km to the west

Q5RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following statements is/are correct? 1) Nari Shakti Vandan Adhiniyam was introduced in 2023. 2) Nari Shakti Vandan Adhiniyam ensures 33% reserved seats for women in the Parliament, Legislative Assemblies and Delhi Assembly. 3) Nari Shakti Vandan Adhiniyam will be in force for 10 years only.
  1. A1 only
  2. B1 and 3
  3. C2 and 3
  4. D1 and 2
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Correct answer: (C) 2 and 3

Explanation

Official answer key: (3) 2 and 3 Correct answer should be (4) 1 and 2. The Nari Shakti Vandan Adhiniyam (106th Amendment) was introduced in 2023 and reserves one-third of the seats in the Lok Sabha, state assemblies and the Delhi assembly. The reservation is for 15 years, not 10, so statement 3 is wrong. Scoring follows the official key.

Q6RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which synthetic chemicals are responsible for the depletion of ozone in the atmosphere?
  1. AChlorofluorocarbons (CFCs)
  2. BMethane
  3. CCarbon dioxide
  4. DNitrogen oxides
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Correct answer: (A) Chlorofluorocarbons (CFCs)

Q7RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In the reaction CuO+H₂→Cu+H₂O, the substance reduced is:
  1. ACuO
  2. BH₂O
  3. CH₂
  4. DCu
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Correct answer: (A) CuO

Q8RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What is the median of the following data? 78, 33, 59, 56, 61, 36, 48, 42, 97, 57, 62
  1. A56.5
  2. B58
  3. C57
  4. D57.5
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Correct answer: (C) 57

Q9RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following can be minimised through the implementation of proper sewage treatment?
  1. AAir pollution
  2. BNoise pollution
  3. CSoil pollution
  4. DWater pollution
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Correct answer: (D) Water pollution

Q10RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Two numbers are in the ratio 5 : 8. If the first number is increased by 13 and the second number is decreased by 6, then the ratio becomes 4 : 6. What is the sum of the original two numbers?
  1. A650
  2. B681
  3. C665
  4. D663
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Correct answer: (D) 663

Q11RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Who was appointed as the new head coach of the junior men’s hockey team in August 2024?
  1. AShankar Lakshman
  2. BHarmanpreet Singh
  3. CPrithipal Singh
  4. DPR Sreejesh
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Correct answer: (D) PR Sreejesh

Q12RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The curved surface area of a cone is 5544 cm², and the diameter is 168 cm. What is its total surface area (in cm²)? (Use π = 22/7)
  1. A27,270
  2. B27,720
  3. C25,530
  4. D23,550
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Correct answer: (B) 27,720

Q13RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
With which of the following pricing approaches is a product's price equal to its marginal cost?
  1. AMark-up pricing
  2. BFactor pricing
  3. CMarginal cost pricing
  4. DPrice discrimination
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Correct answer: (C) Marginal cost pricing

Q14RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Write the expanded form of (5a + 4b + 9c)².
  1. A25a² + 16b² + 81c² + 44ab + 72bc + 90ac
  2. B25a² + 16b² + 81c² + 40ab + 72bc + 90ac
  3. C25a² + 16b² + 81c² + 40ab + 72bc + 100ac
  4. D25a² + 16b² + 81c² + 40ab + 67bc + 90ac
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Correct answer: (B) 25a² + 16b² + 81c² + 40ab + 72bc + 90ac

Q15RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In which year did the amount of ozone begin to drop sharply in the atmosphere?
  1. A1970
  2. B1980
  3. C1960
  4. D1950
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Correct answer: (B) 1980

Q16RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
When lead nitrate is heated, it decomposes to form lead monoxide (PbO), nitrogen dioxide (NO₂), and oxygen (O₂). The brown gas seen during the reaction is:
  1. Anitrogen dioxide (NO₂)
  2. Blead monoxide (PbO)
  3. Coxygen (O₂)
  4. Dnitric oxide (NO)
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Correct answer: (A) nitrogen dioxide (NO₂)

Q17RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A trader lost 10% by selling a shirt for ₹850. He will gain x%' by selling it for ₹1360, the value of x is:
  1. A44
  2. B54
  3. C59
  4. D34
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Correct answer: (A) 44

Q18RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 8436152, then what will be the difference between the last and the first digits from the left in the number thus formed?
  1. A4
  2. B3
  3. C6
  4. D5
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Correct answer: (C) 6

Q19RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following can be broken down by biological processes?
  1. AMilk packets
  2. BAluminium foil
  3. CVegetable peels
  4. DPlastic bottles
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Correct answer: (C) Vegetable peels

Q20RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following articles empowers the President to make regulations for the peace, progress and good government of the union territories?
  1. AArticle 243
  2. BArticle 244
  3. CArticle 240
  4. DArticle 239
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Correct answer: (C) Article 240

Q21RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What happens to the resistance of most conductors as their temperature increases?
  1. AIt increases.
  2. BIt remains the same.
  3. CIt decreases.
  4. DIt becomes zero.
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Correct answer: (A) It increases.

Q22RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which attribute of a paper cup makes it better than a plastic cup for our environment?
  1. ADisposable
  2. BNot disposable
  3. CNon-biodegradable
  4. DBiodegradable
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Correct answer: (D) Biodegradable

Q23RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
₹5400 were divided among P, Q and R, such that 6 times of P = 3 times of Q = 8 times of R. Find the share of R.
  1. A₹1235
  2. B₹947
  3. C₹1245
  4. D₹1080
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Correct answer: (D) ₹1080

Q24RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
By selling an article at 5/14 of its actual selling price, Hitesh incurs a loss of 20%. If he sells it at 80% of its actual selling price, then the profit percentage is:
  1. A81.2%
  2. B80.7%
  3. C81.9%
  4. D79.2%
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Correct answer: (D) 79.2%

Q25RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Evaluate: 33 ÷ 9 × 3 - 2 × 4
  1. A3
  2. B6
  3. C2
  4. D5
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Correct answer: (A) 3

Q26RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following reactions is an example of a precipitation reaction?
  1. ACaCO₃ → CaO + CO₂
  2. BHCl + NaOH → NaCl + H₂O
  3. C2H₂ + O₂ → 2H₂O
  4. DNaCl + AgNO₃ → NaNO₃ + AgCl
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Correct answer: (D) NaCl + AgNO₃ → NaNO₃ + AgCl

Q27RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The climate of the Thar desert is best described as ________.
  1. Atemperate
  2. Btropical rainforest
  3. Chumid subtropical
  4. Darid
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Correct answer: (D) arid

Q28RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What is the reason for CFC free refrigerators being manufactured for use throughout the world?
  1. ACFC is a synthetic chemical which depletes the ozone layer.
  2. BCFC is cheap for use in refrigerators.
  3. CCFC is tough to handle for the refrigeration industry.
  4. DCFC makes refrigeration a tough process.
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Correct answer: (A) CFC is a synthetic chemical which depletes the ozone layer.

Q29RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
B is the father of A. C is the brother of A. D is the wife of C and E is the son of D. How is B related to E?
  1. AFather's father
  2. BFather's brother
  3. CFather
  4. DBrother
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Correct answer: (A) Father's father

Q30RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Himani travels a distance of 352 km with speed of 32 km/h and 330 km with 30 km/h by her car. Find the average speed (in km/h) of Himani.
  1. A31
  2. B39
  3. C21
  4. D26
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Correct answer: (A) 31

Q31RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Sakshi invested a sum of ₹8900 at 10% per annum compound interest, componded annually. If she received an amount of ₹10769 after n years, the value of n is:
  1. A2
  2. B2.4
  3. C1.60000002384186
  4. D3
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Correct answer: (A) 2

Q32RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What would happen to dead plants and animals if decomposers were absent from an ecosystem?
  1. AThey would be eaten by consumers.
  2. BThey would quickly turn into soil.
  3. CThey would persist, and the natural replenishment of soil would be hindered.
  4. DThey would become producers.
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Correct answer: (C) They would persist, and the natural replenishment of soil would be hindered.

Q33RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Seven boxes, E, F, G, H, T, U and V, are kept one over the other, but not necessarily in the same order. Only two boxes are kept below E. Only one box is kept above T. Only one box is kept between T and U. G is kept immediately below F. V is kept at some place below H. How many boxes are kept between H and F?
  1. AThree
  2. BOne
  3. CTwo
  4. DFour
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Correct answer: (D) Four

Q34RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
When was the Indian Remote Sensing Satellite System (IRS) established?
  1. A1972
  2. B1988
  3. C1959
  4. D1983
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Correct answer: (B) 1988

Q35RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What should come in place of the question mark (?) in the given series? 18 24 34 40 50 ?
  1. A56
  2. B57
  3. C55
  4. D58
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Correct answer: (A) 56

Q36RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following represents a combination reaction?
  1. ACaO + H₂O → Ca(OH)₂
  2. BCaCO₃ → CaO + CO₂
  3. C2KClO₃ → 2KCl + 3O₂
  4. DNaCl + AgNO₃ → AgCl + NaNO₃
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Correct answer: (A) CaO + H₂O → Ca(OH)₂

Q37RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following combinations would produce a precipitate?
  1. ANaOH + FeCl₃
  2. BNaOH + Na₂SO₄
  3. CNaOH + NaCl
  4. DNaCl + KNO₃
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Correct answer: (A) NaOH + FeCl₃

Q38RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient to answer the question. Five people, A, B, C, D and E, have different weights each. Who is the heaviest? (I) A is heavier than C but lighter than D. (II) B is not the heaviest and E is not the lightest.
  1. ABoth Statements I and II put together (and not independently) are sufficient to answer the question.
  2. BData in Statement II alone is sufficient to answer the question, while data in Statement I is not.
  3. CData in Statement I alone is sufficient to answer the question, while data in Statement II is not.
  4. DBoth Statements I and II put together are not sufficient to answer the question.
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Correct answer: (D) Both Statements I and II put together are not sufficient to answer the question.

Q39RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The average price of three items of furniture is Rs 16455. If their prices are in the ratio 3:5:7, the price of the cheapest item (in Rs) is
  1. A5485
  2. B3291
  3. C7679
  4. D9873
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Correct answer: (D) 9873

Q40RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A copper wire has a resistance of 10 Ω. If it is replaced with a wire of the same material and length but twice the cross-sectional area, its resistance will be ______.
  1. A20 Ω
  2. B10 Ω
  3. C5 Ω
  4. D2.5 Ω
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Correct answer: (C) 5 Ω

Q41RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In a certain code language,‘guns and roses’ is coded as ‘li mh ca’,‘for the roses’ is coded as ‘mh bo ph’ and‘guns for colours’ is coded as ‘ca bo qu’. What is the code for 'roses' in that language?
  1. Ali
  2. Bmh
  3. Cca
  4. Dbo
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Correct answer: (B) mh

Q42RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Why do iron filings arrange themselves in a pattern around a bar magnet?
  1. ABecause they are heavy
  2. BDue to gravitational force
  3. CBecause of the magnetic field
  4. DDue to electric charge
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Correct answer: (C) Because of the magnetic field

Q43RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What is the smallest 4-digit number which, when divided by 12, 16, and 20, gives a remainder of 9?
  1. A1209
  2. B1217
  3. C1017
  4. D1049
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Correct answer: (A) 1209

Q44RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The first ruler of Delhi Sultanate was:
  1. ABalban
  2. BQutb-ud-din Aibak
  3. CAlauddin Khalji
  4. DIltutmish
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Correct answer: (B) Qutb-ud-din Aibak

Q45RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ? # : GOK :: HPL : %
  1. A# = EMI, % = JRN
  2. B# = EMI, % = JSN
  3. C# = EMI, % = JRM
  4. D# = EMJ, % = JRN
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Correct answer: (A) # = EMI, % = JRN

Q46RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If a substance has a pH of 11, which of the following statements is true?
  1. AIt is neutral and does not change the litmus colour.
  2. BIt is basic and can turn red litmus paper blue.
  3. CIt is acidic and can turn blue litmus paper red.
  4. DIt is acidic and does not change the colour of the litmus paper.
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Correct answer: (B) It is basic and can turn red litmus paper blue.

Q47RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What should come in place of the question mark (?) in the given series? 64 61.7 59.4 57.1 ? 52.5
  1. A54.8
  2. B53.1
  3. C55.4
  4. D56.7
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Correct answer: (A) 54.8

Q48RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A man walks to a viewpoint and returns to the starting point by his car maintaining constant speed and thus takes a total time of 6 hours 45 minutes. He would have gained 2 hours by driving both ways. How long would it have taken for him to walk both ways with same walking speed?
  1. A8 hours 30 minutes
  2. B9 hours 15 minutes
  3. C7 hours 45 minutes
  4. D8 hours 45 minutes
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Correct answer: (D) 8 hours 45 minutes

Q49RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A and B complete a work in 18 days. If A alone can do it in 54 days then, B alone can do in______________(days).
  1. A29
  2. B27
  3. C26
  4. D28
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Correct answer: (B) 27

Q50RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the one that DOES NOT belong to that group?
  1. AEC – HF
  2. BMK – PN
  3. CIG – LJ
  4. DTR – XV
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Correct answer: (D) TR – XV

Q51RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Article 51 A (b) of the Indian Constitution states that it is the duty of the citizens 'to cherish and follow the noble ideals that inspired the _______'.
  1. Acustoms and traditions of India
  2. Bglobal values and principles
  3. Cnational struggle for freedom
  4. Dpolitical ideas of various parties
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Correct answer: (C) national struggle for freedom

Q52RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If A = 7.5°, what is the value of (12.8 × (1/√3) cot4A + 7.2 tan6A)?
  1. A12
  2. B8
  3. C20
  4. D10
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Correct answer: (C) 20

Q53RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Write the expanded form of (9a + 6b + 4c)².
  1. A81a² + 36b² + 16c² + 108ab + 43bc + 72ac
  2. B81a² + 36b² + 16c² + 108ab + 48bc + 72ac
  3. C81a² + 36b² + 16c² + 108ab + 48bc + 82ac
  4. D81a² + 36b² + 16c² + 112ab + 48bc + 72ac
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Correct answer: (B) 81a² + 36b² + 16c² + 108ab + 48bc + 72ac

Q54RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In which direction does the force act on a conductor placed in a magnetic field in an electric motor?
  1. AOpposite to the magnetic field
  2. BIn the direction of the current
  3. CAlong the magnetic field
  4. DPerpendicular to both the current and magnetic field
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Correct answer: (D) Perpendicular to both the current and magnetic field

Q55RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The average marks of some students in a class is 75. When five students are included, the average becomes 78 and the marks of those five students are 80, 85, 89, 81 and 82. Find the total number of students.
  1. A6
  2. B9
  3. C8
  4. D10
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Correct answer: (B) 9

Q56RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
How many of the following Union territories were created after State Reorganisation Act passed in 1956?
  1. A7
  2. B6
  3. C5
  4. D4
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Correct answer: (B) 6

Explanation

Official answer key: (2) 6 The original paper does not list the Union territories this question refers to, so it cannot be answered from the question alone. Scoring follows the official key.

Q57RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The potential difference versus current plot for a conducting wire is a straight line. The slope of this line gives us the:
  1. Acurrent flowing through the wire
  2. Bresistance of the wire
  3. Cvoltage across the wire
  4. Dnumber of electrons in the wire
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Correct answer: (B) resistance of the wire

Q58RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In ΔPQR and ΔXYZ, PQ = 5 cm, QR = 6 cm, PR = 7 cm, XY = 5 cm, YZ = 6 cm and XZ = 7 cm. Then which of the following is true?
  1. AΔPQR ≅ ΔYXZ
  2. BΔPQR ≅ ΔXYZ
  3. CΔQPR ≅ ΔXYZ
  4. DΔPRQ ≅ ΔXYZ
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Correct answer: (B) ΔPQR ≅ ΔXYZ

Q59RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
  1. AMQZE
  2. BGKTY
  3. CWAIO
  4. DOSBG
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Correct answer: (C) WAIO

Q60RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A number when increased by 50 %, gives 2850. The number is:
  1. A950
  2. B3800
  3. C5700
  4. D1900
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Correct answer: (D) 1900

Q61RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If three resistors of 6 Ω, 3 Ω and 2 Ω are connected in parallel, the total equivalent resistance is ________.
  1. A11 Ω
  2. B0.5 Ω
  3. C2 Ω
  4. D1 Ω
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Correct answer: (D) 1 Ω

Q62RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Refer to the following number, symbol series and answer the question. Counting to be done from left to right only. (Left) 9 8 & & © € % 8 $ 9 8 2 # 5 2 7 7 1 5 £ € % (Right) How many such numbers are there each of which is immediately preceded by a symbol and also immediately followed by a symbol?
  1. A0
  2. B3
  3. C2
  4. D1
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Correct answer: (D) 1

Q63RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
According to experimental results, when does the magnitude of the force on a current-carrying conductor in a magnetic field become the highest?
  1. AWhen the current is perpendicular to the magnetic field
  2. BWhen the current is opposite to the magnetic field
  3. CWhen the current is parallel to the magnetic field
  4. DWhen the current flows at any angle to the magnetic field
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Correct answer: (A) When the current is perpendicular to the magnetic field

Q64RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Who among the following women started the Women's Indian Association in 1917?
  1. AUsha Mehta
  2. BMadam Bhikaji Cama
  3. CSarojini Naidu
  4. DAnnie Besant
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Correct answer: (D) Annie Besant

Q65RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
B, C, E, F and H have different heights. B is taller than C but shorter than H. H is taller than E but shorter than F. E is taller than C but shorter than B. How many people are shorter than B?
  1. ATwo
  2. BFour
  3. COne
  4. DThree
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Correct answer: (A) Two

Q66RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A shopkeeper sells an item for ₹770.7 after giving two successive discounts of 58% and 80% on its marked price. Had he not given any discount, he would have earned a profit of 25%. What is the cost price (in ₹) of the item?
  1. A7322
  2. B7353
  3. C7315
  4. D7340
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Correct answer: (D) 7340

Q67RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? JCF25, KDG34, LEH43, MFI52, ?
  1. ANGI61
  2. BNGI60
  3. CNGJ60
  4. DNGJ61
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Correct answer: (D) NGJ61

Q68RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
This question is based on the five, three-digit numbers given below. (Left) 473 987 324 529 648 (Right) (Example: 697 – First digit = 6, second digit = 9 and third digit = 7) NOTE: All the operations to be performed from left to right. The position of how many numbers will remain unchanged if all these numbers are arranged in ascending order?
  1. ANone
  2. BOne
  3. CThree
  4. DTwo
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Correct answer: (A) None

Q69RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The author of the famous novel 'Midnight's Children' is:
  1. ASalman Rushdie
  2. BKhushwant Singh
  3. CShashi Tharoor
  4. DRuskin Bond
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Correct answer: (A) Salman Rushdie

Q70RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
(a¹ × b⁷ × c⁷) / (a¹ × b² × c¹⁰) in simplified form is:
  1. A(a²) × (b⁴) × (c⁻⁵)
  2. B(a⁰) × (b⁵) × (c⁻³)
  3. C(a⁴) × (b²) × (c²)
  4. D(a⁻⁸) × (b⁻⁵) × (c⁻⁹)
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Correct answer: (B) (a⁰) × (b⁵) × (c⁻³)

Q71RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which country gave the name 'Dana' to the cyclone that hit India from the Bay of Bengal?
  1. AThe Maldives
  2. BThe United Arab Emirates
  3. CSaudi Arabia
  4. DOman
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Correct answer: (C) Saudi Arabia

Explanation

Official answer key: (3) Saudi Arabia Correct answer should be Qatar (not among the options). The name "Dana" for the October 2024 Bay of Bengal cyclone was given by Qatar from the WMO/ESCAP list. Scoring follows the official key.

Q72RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If the mean of the following data is 61, then the value of X is: xᵢ: 55, 60, 70, 95 fᵢ: 48, X, 31, 23
  1. A799
  2. B773
  3. C790
  4. D796
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Correct answer: (B) 773

Q73RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following will cause the greatest increase in power dissipation for a given resistor?
  1. ADoubling the voltage across the resistor
  2. BDoubling the resistance
  3. CHalving the current through the resistor
  4. DHalving the resistance
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Correct answer: (A) Doubling the voltage across the resistor

Q74RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If the length of a wire-shaped resistor is doubled, the resistivity:
  1. Aremains the same
  2. Bis doubled
  3. Cis halved
  4. Dis quadrupled
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Correct answer: (A) remains the same

Q75RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A, B, C, D, E, F and G are sitting around a circular table facing the centre. B sits third to the right of F. D sits fourth to the left of B. C is neither the immediate neighbour of B nor D. A sits third to the right of C. E is not the immediate neighbour of D. How many people sit between E and G, when counted from the left of E?
  1. ANone
  2. BOne
  3. CTwo
  4. DThree
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Correct answer: (D) Three

Q76RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What was the venue of the North Atlantic treaty Organization (NATO) Summit in July 2024?
  1. ANew York, United States
  2. BLondon, England
  3. CWashington, D.C., United States
  4. DParis, France
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Correct answer: (C) Washington, D.C., United States

Q77RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The sum of 8 numbers is 336. Find their average number.
  1. A42
  2. B40
  3. C41
  4. D43
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Correct answer: (A) 42

Q78RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? FIS38, RUE70, DGQ102, PSC134, ?
  1. ABEO166
  2. BBOW165
  3. CBOQ166
  4. DBOE166
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Correct answer: (A) BEO166

Q79RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Two pipes can fill a tank in 34 hours and 94 hours, respectively. The time (in hours) required to fill the tank when both pipes are opened simultaneously is:
  1. A796/30
  2. B797/29
  3. C799/32
  4. D798/31
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Correct answer: (C) 799/32

Q80RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A solution has a pH of 12. Which ion concentration is higher in this solution?
  1. ABoth H⁺and OH⁻ are equal
  2. BMore number S²⁻ ions and more Cl⁻¹
  3. COnly OH⁻
  4. DOnly H⁺
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Correct answer: (C) Only OH⁻

Q81RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
RUON is related to VYSR in a certain way based on the English alphabetical order. In the same way, HKED is related to LOIH. To which of the given options is TWQP related, following the same logic?
  1. AAXUT
  2. BXATU
  3. CXAUT
  4. DAXTU
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Correct answer: (C) XAUT

Q82RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
If the mean proportional of P and 100 is 50, then find the value of P.
  1. A25
  2. B28
  3. C22
  4. D24
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Correct answer: (A) 25

Q83RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Fleming's Right-Hand Rule is applicable in the case of _________.
  1. Aelectric motors
  2. Belectric generators
  3. Celectric kettles
  4. Dfuse wires
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Correct answer: (B) electric generators

Q84RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Why is monitoring pH crucial for understanding the impacts of acid rain on soil and water ecosystems?
  1. AAcid rain only makes the water taste sour.
  2. BAcid rain does not affect soil and water ecosystems.
  3. CAcid rain decreases the pH, harming aquatic life and soil nutrient availability.
  4. DAcid rain increases the pH of soil and water bodies.
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Correct answer: (C) Acid rain decreases the pH, harming aquatic life and soil nutrient availability.

Q85RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The centres of two circles with radii 28 cm and 20 cm are 50 cm apart. What is the length (in cm) of the transverse common tangent?
  1. A16
  2. B15
  3. C13
  4. D14
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Correct answer: (D) 14

Q86RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The ratio between HCF and LCM of two numbers 62 and 217 is 1 : 14. Find the LCM.
  1. A439
  2. B402
  3. C430
  4. D434
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Correct answer: (D) 434

Q87RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
For which mission of ISRO has the International Astronautical Federation (IAF) awarded ISRO the World Space Award?
  1. AChandrayaan-2
  2. BAditya-L1
  3. CChandrayaan-3
  4. DVenus Mission
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Correct answer: (C) Chandrayaan-3

Q88RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Study the given diagram carefully and answer the questions. The numbers in different sections indicate the number of persons. How many persons are both poor and uneducated but not famous ? (NOTE: You have to take the given data to be true even if they seem to be at variance from commonly known facts.)
  1. A8
  2. B5
  3. C12
  4. D30
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Correct answer: (B) 5

Q89RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 14 February 2024 to 15 April 2024
  1. A33
  2. B36
  3. C34
  4. D35
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Correct answer: (D) 35

Q90RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The cost of a washing machine is 25% less than the cost of a TV. If the cost of the washing machine increases by 82% and that of the TV decreases by 16%, then what is the change in the total cost of 8 washing machines and 9 TVs?
  1. AIncrease by 23.2%
  2. BIncrease by 20%
  3. CDecrease by 24%
  4. DDecrease by 21%
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Correct answer: (A) Increase by 23.2%

Q91RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Select the letter-cluster pair that best represents a similar relationship to the one expressed in the pairs of letter-clusters given below. NCG : SFF SQO : XTN
  1. AREV : WHW
  2. BMKY : RNX
  3. CIUD : NXA
  4. DQHX : VKV
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Correct answer: (B) MKY : RNX

Q92RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Select the option in which the numbers share the same relationship as that shared by the given pairs of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) 96, 12 184, 23
  1. A130, 16
  2. B144, 18
  3. C156, 19
  4. D180, 20
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Correct answer: (B) 144, 18

Q93RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. Q has the exam on Saturday. Only four people have exams after U. R has the exam immediately before T but not on Monday. S has the exam after P but before U. How many people have exams between R and V?
  1. AThree
  2. BTwo
  3. CFive
  4. DFour
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Correct answer: (B) Two

Q94RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What architectural style is the Meenakshi Amman Temple known for?
  1. AGothic
  2. BRoman
  3. CIndo-Saracenic
  4. DDravidian
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Correct answer: (D) Dravidian

Q95RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which ion is responsible for the acidic properties of acids?
  1. ANa⁺
  2. BH⁺
  3. COH⁻
  4. DCl⁻
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Correct answer: (B) H⁺

Q96RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
When two elements react to form a compound, it can be classified as:
  1. Adisplacement
  2. Bdouble displacement
  3. Cdecomposition
  4. Dcombination
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Correct answer: (D) combination

Q97RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
In a certain code language, ‘fan light door’ is coded as ‘dy ph mt’, ‘door window mat’ is coded as ‘lp ph st’, ‘mat fan glass’ is coded as ‘st bq dy’. What is the code for 'fan' in that language? (Note: All the codes are two-letter coded only.)
  1. Amt
  2. Bbq
  3. Cph
  4. Ddy
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Correct answer: (D) dy

Q98RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What term can be used for substances that are broken down by biological processes?
  1. ANon-biodegradable
  2. BBiodegradable
  3. CCompostable
  4. DRecyclable
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Correct answer: (B) Biodegradable

Q99RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
What role do green plants and certain bacteria play in an ecosystem?
  1. AProducers
  2. BConsumers
  3. CParasites
  4. DDecomposers
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Correct answer: (A) Producers

Q100RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
Which of the following substances will take the longest time to degrade naturally in the environment?
  1. ALeather
  2. BCardboard box
  3. CPaper
  4. DLeaves
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Correct answer: (A) Leather

Practise it as a real test

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