BPSC TRE 3.0 General Studies Question Paper (Class 6–8, 19 July 2024) with Official Answers

BPSC TRE 3.0 General Studies question paper (Class 6–8, 19 July 2024): all 40 GS questions in English with BPSC’s official final answers and a short explanation for each.

These questions are from the Class 6–8 booklet ‘Language, General Studies and Hindi’ (Series I). The other Class 6–8 subject booklets that day carried the same GS questions, in some booklets in a different order.

BPSC TRE 4.0 is now open for 33,320 teacher posts, including 8,563 for Class 6–8. General Studies counts towards your merit whatever your subject, so it’s a good place to start practising.

Table of Contents

• Exam overview
• BPSC TRE 4.0 at a glance
• GS questions with answers (Q31–70)
• How to prepare for GS
• FAQs

BPSC TRE 3.0 Class 6–8: Exam Overview

Exam	BPSC School Teacher (Re-)Examination, TRE 3.0 (Advt. No. 22/2024)
Conducting body	Bihar Public Service Commission (BPSC)
Class level	Class 6–8
Exam date	19 July 2024
General Studies	40 questions (Q31–70)
Options	Five per question; (D) is usually ‘More than one of the above’ and (E) ‘None of the above’
Answers on this page	BPSC Final Answer Key (19 September 2024), booklet Series I

BPSC TRE 4.0 at a Glance

Advertisement	No. 15/2026 (replaces Advt. 14/2026)
Total posts	33,320
Class 6–8 posts	8,563
Last date to apply	3 November 2026 (fee by 2 November)
Exam date	Not announced yet

BPSC TRE 3.0 GS Questions with Answers (Q31–70)

Question numbers are as in the original booklet (Series I). Answers follow BPSC’s final answer key; the explanations are written by the ExamYaari team.

Q31. Which of the following oxides is soluble in water?

(A) FeO
(B) ZnO
(C) CaO
(D) More than one of the above
(E) None of the above

Answer: (C) CaO
Explanation: Calcium oxide (quicklime) dissolves in water to form calcium hydroxide (slaked lime). FeO and ZnO are insoluble in water.

Q32. Which one of the following is not a colloid?

(A) Vinegar
(B) Smoke
(C) Blood
(D) More than one of the above
(E) None of the above

Answer: (A) Vinegar
Explanation: Vinegar is a true solution of acetic acid in water. Smoke (solid in gas) and blood are colloids.

Q33. Which river makes boundary between India and Nepal?

(A) Kosi
(B) Kali
(C) Gandak
(D) More than one of the above
(E) None of the above

Answer: (B) Kali
Explanation: The Kali (Mahakali/Sharda) river forms the western boundary between India (Uttarakhand) and Nepal. As per BPSC’s final answer key, the answer is (B).

Q34. In how many years will ₹ 7,500 double at 8% simple interest?

(A) 16 years
(B) 10 years
(C) 12.5 years
(D) More than one of the above
(E) None of the above

Answer: (C) 12.5 years
Explanation: To double, the interest must equal the principal: 100% ÷ 8% per year = 12.5 years.

Q35. Which one of the following is not among the four pilots who have been trained to become astronauts for the ISRO’s Gaganyaan mission to space planned for 2024-25?

(A) Wing Commander Subhanshu Shukla
(B) Group Captain P.B. Nair
(C) Group Captain Ajit Krishnan
(D) More than one of the above
(E) None of the above

Answer: (E) None of the above
Explanation: The four Gaganyaan astronaut-designates are Prasanth Balakrishnan Nair, Ajit Krishnan, Angad Pratap and Shubhanshu Shukla. All three listed are among them, so none of the options is correct.

Q36. Which of the following represents non-ohmic resistance?

(A) Copper
(B) Torch Bulb
(C) Nichrome
(D) More than one of the above
(E) None of the above

Answer: (B) Torch Bulb
Explanation: A bulb filament heats up as current rises, so its resistance changes and it does not follow Ohm’s law. Copper and nichrome wires are ohmic at steady temperature.

Q37. Asiatic Society of Bengal was founded by

(A) Sir William Bentinck
(B) Sir James Todd
(C) Sir William Jones
(D) More than one of the above
(E) None of the above

Answer: (C) Sir William Jones
Explanation: Sir William Jones founded the Asiatic Society in Calcutta in 1784.

Q38. The value of (0.03125)^−2/5 is

(A) 9
(B) 4
(C) 6
(D) More than one of the above
(E) None of the above

Answer: (B) 4
Explanation: 0.03125 = 1/32 = 2⁻⁵, so (2⁻⁵)^−2/5 = 2² = 4.

Q39. Ghatshila of Jharkhand is famous for which mineral production?

(A) Mica
(B) Copper
(C) Bauxite
(D) More than one of the above
(E) None of the above

Answer: (B) Copper
Explanation: Ghatshila in the Singhbhum copper belt is known for copper mining and smelting (Hindustan Copper, Maubhandar).

Q40. In which year was the African Convention for the Conservation of Natural Resources held?

(A) 1990
(B) 1980
(C) 1960
(D) 1968
(E) None of the above

Answer: (D) 1968
Explanation: The African Convention on the Conservation of Nature and Natural Resources was adopted at Algiers in 1968.

Q41. If (1/5)^3x = 0.008, then the value of (0.25)^x is

(A) 4.0
(B) 0.25
(C) 1.0
(D) More than one of the above
(E) None of the above

Answer: (B) 0.25
Explanation: 0.008 = 1/125 = (1/5)³, so 3x = 3 and x = 1. Hence (0.25)¹ = 0.25.

Q42. The Ministry of Science and Technology recently announced a new set of National Awards in the field of Science, Technology and Innovation known as ‘Rashtriya Vigyan Puraskar’, for which the award ceremony for all categories of awards will be held every year on

(A) 23rd August – National Space Day
(B) 28th February – National Science Day
(C) 11th May – National Technology Day
(D) More than one of the above
(E) None of the above

Answer: (A) 23rd August – National Space Day
Explanation: The Rashtriya Vigyan Puraskar ceremony is to be held every year on 23 August, National Space Day (marking Chandrayaan-3’s landing).

Q43. Congress Socialist Party (CSP) was formed in the year

(A) 1934
(B) 1930
(C) 1932
(D) More than one of the above
(E) None of the above

Answer: (A) 1934
Explanation: The Congress Socialist Party was formed in 1934 by Jayaprakash Narayan, Acharya Narendra Dev and others.

Q44. Subramaniam and Naidu donate some money in a relief fund. The amount paid by Naidu is ₹ 125 more than that of Subramaniam. If the total money paid by them is ₹ 975, then the amount of money donated by Subramaniam is

(A) ₹ 385
(B) ₹ 575
(C) ₹ 425
(D) More than one of the above
(E) None of the above

Answer: (C) ₹ 425
Explanation: Let Subramaniam give x; then x + (x + 125) = 975, so 2x = 850 and x = ₹ 425.

Q45. Which Country in the world became the first to enshrine right to abortion in its Constitution?

(A) Denmark
(B) United States
(C) France
(D) More than one of the above
(E) None of the above

Answer: (C) France
Explanation: In March 2024 France amended its Constitution to guarantee the freedom to have an abortion, the first country to do so.

Q46. What is manganese used for?

(A) Matchbox industry
(B) Battery production
(C) Photography industry
(D) More than one of the above
(E) None of the above

Answer: (D) More than one of the above
Explanation: Manganese dioxide is used in dry-cell batteries and also in match heads, so more than one option is correct. As per BPSC’s final answer key, the answer is (D).

Q47. Which of the following organs control body balance?

(A) Cerebellum
(B) Ear
(C) Ribs
(D) More than one of the above
(E) None of the above

Answer: (B) Ear
Explanation: As per BPSC’s final answer key, the answer is (B) Ear. The inner ear (vestibular system) senses balance, while the cerebellum coordinates posture and balance, so (D) could also be argued.

Q48. Subhashchandra Bose was President of Indian National Congress in the year/s

(A) 1939
(B) 1937
(C) 1938
(D) More than one of the above
(E) None of the above

Answer: (D) More than one of the above
Explanation: Bose presided over the Haripura session (1938) and was re-elected for the Tripuri session (1939), so both 1938 and 1939 are correct.

Q49. Which of the following is true?

(A) 31/36 < 17/18 < 43/45 < 59/60
(B) 17/18 < 31/36 < 43/45 < 59/60
(C) 31/36 < 17/18 < 59/60 < 43/45
(D) More than one of the above
(E) None of the above

Answer: (A) 31/36 < 17/18 < 43/45 < 59/60
Explanation: 31/36 ≈ 0.861, 17/18 ≈ 0.944, 43/45 ≈ 0.956 and 59/60 ≈ 0.983, so the order in (A) is correct.

Q50. Bihar Diwas is celebrated on ______ to

(A) On March 22 to commemorate its separation form the Calcutta Presidency
(B) On March 22 to commemorate its separation form the Mughal Presidency
(C) On March 22 to commemorate its separation form the Bengal Presidency
(D) More than one of the above
(E) None of the above

Answer: (C) On March 22 to commemorate its separation form the Bengal Presidency
Explanation: Bihar was carved out of the Bengal Presidency on 22 March 1912, which is celebrated as Bihar Diwas.

Q51. Who was conferred the Dadasaheb Phalke Award 2023 for lifetime contribution to cinema?

(A) Asha Parekh
(B) Waheeda Rehman
(C) Dilip Kumar (Posthumously)
(D) More than one of the above
(E) None of the above

Answer: (B) Waheeda Rehman
Explanation: Waheeda Rehman received the Dadasaheb Phalke Award, announced in 2023. Asha Parekh got it a year earlier.

Q52. Which of the following is true about respiration?

(A) Energy is not released at all
(B) Energy is released and stored in form of ATP
(C) Energy is released and stored in form of ADP
(D) More than one of the above
(E) None of the above

Answer: (B) Energy is released and stored in form of ATP
Explanation: Respiration breaks down food to release energy, which is stored in cells as ATP.

Q53. The formation of Simon Commission was announced on

(A) 8th November 1929
(B) 8th December 1927
(C) 8th November 1928
(D) More than one of the above
(E) None of the above

Answer: (E) None of the above
Explanation: The Simon Commission was announced on 8 November 1927, which is not among the options.

Q54. Store house of malarial parasite in our body is

(A) Stomach
(B) Liver
(C) Spleen
(D) More than one of the above
(E) None of the above

Answer: (C) Spleen
Explanation: As per BPSC’s final answer key, the answer is (C) Spleen. The spleen filters out infected red blood cells and enlarges in malaria; the parasite also multiplies in the liver.

Q55. The ratio of two numbers is 14 : 25. If the difference between them is 264, then the smaller of the two numbers is

(A) 336
(B) 282
(C) 317
(D) More than one of the above
(E) None of the above

Answer: (A) 336
Explanation: The difference is 25 − 14 = 11 parts = 264, so one part = 24 and the smaller number = 14 × 24 = 336.

Q56. For what purpose is water used the most in India?

(A) Domestic
(B) Irrigation
(C) Industries
(D) More than one of the above
(E) None of the above

Answer: (B) Irrigation
Explanation: Irrigation (agriculture) uses by far the largest share of India’s water, around 80% or more.

Q57. What was the electoral symbol that was restored to Imran Khan’s Pakistan Tehreek-e-Insaf party by a ruling of the Peshawar High Court against the decision of the Country’s election commission in January 2024?

(A) Cricket ‘Ball’
(B) Cricket ‘Bat’
(C) Crescent Moon
(D) More than one of the above
(E) None of the above

Answer: (B) Cricket ‘Bat’
Explanation: PTI’s symbol is the cricket bat. The Peshawar High Court restored it in January 2024, though the Supreme Court later set that ruling aside.

Q58. Where has the Gharial Breeding Center been established in India?

(A) Corbett (Uttarakhand)
(B) Morena (M.P.)
(C) Sundarbans (W.B.)
(D) More than one of the above
(E) None of the above

Answer: (B) Morena (M.P.)
Explanation: A gharial breeding centre runs at Deori in Morena district, Madhya Pradesh, part of the National Chambal Sanctuary.

Q59. If x⁴ + y⁴ = 17 and x + y = 1, then the value of x²y² − 2xy is

(A) 12
(B) 4
(C) 8
(D) More than one of the above
(E) None of the above

Answer: (C) 8
Explanation: Let p = xy. Then x² + y² = 1 − 2p and x⁴ + y⁴ = (1 − 2p)² − 2p² = 17, which gives 2p² − 4p = 16, so p² − 2p = 8.

Q60. Who threw harmless bombs in the Central Legislative Assembly?

(A) Jatin Das
(B) Chandrashekhar Azad
(C) Batukeshwar Dutt
(D) More than one of the above
(E) None of the above

Answer: (C) Batukeshwar Dutt
Explanation: Bhagat Singh and Batukeshwar Dutt threw harmless bombs in the Central Legislative Assembly on 8 April 1929. Of the options, only Dutt is correct.

Q61. Lamps used in street lighting are connected in

(A) Both series and parallel
(B) Parallel
(C) Series
(D) More than one of the above
(E) None of the above

Answer: (B) Parallel
Explanation: Street lamps are connected in parallel so each gets full voltage and one failing lamp does not switch off the rest.

Q62. Where are more favorable conditions found in India for tidal and wave energy production?

(A) Ganga river
(B) Gulf of Kutch
(C) Mannar bay
(D) Khambhat bay
(E) None of the above

Answer: (D) Khambhat bay
Explanation: The Gulf of Khambhat has India’s highest tidal range, making it the most favourable site for tidal energy. As per BPSC’s final answer key, the answer is (D).

Q63. National Library of India started its journey with the opening of

(A) Calcutta Public Library in March 1838
(B) Calcutta Public Library in March 1836
(C) Calcutta Public Library in March 1837
(D) More than one of the above
(E) None of the above

Answer: (B) Calcutta Public Library in March 1836
Explanation: The National Library traces its origin to the Calcutta Public Library, opened in March 1836.

Q64. A room is 8 meters long, 6 meters wide and 10 meters high, then the length of the longest pole that can be placed in the room is

(A) 12√6 meters
(B) 10√2 meters
(C) 12 meters
(D) More than one of the above
(E) None of the above

Answer: (B) 10√2 meters
Explanation: The longest pole is the room’s diagonal: √(8² + 6² + 10²) = √200 = 10√2 m.

Q65. Under the Government of India Act 1935, who was the first elected Chairman of Bihar Legislative Council?

(A) Rai Bahadur Satish Chandra
(B) Rajendra Prasad
(C) Rajiv Ranjan Sinha
(D) More than one of the above
(E) None of the above

Answer: (C) Rajiv Ranjan Sinha
Explanation: Rajiv Ranjan Prasad Sinha became the first elected Chairman of the Bihar Legislative Council formed in 1937 under the 1935 Act.

Q66. Where is the UN Climate Change Conference 2024 scheduled to be held in November 2024?

(A) Dubai-UAE
(B) Sharmel-Sheikh-Egypt
(C) Baku-Azerbaijan
(D) More than one of the above
(E) None of the above

Answer: (C) Baku-Azerbaijan
Explanation: COP29 was held in Baku, Azerbaijan in November 2024. COP28 was in Dubai and COP27 in Sharm el-Sheikh.

Q67. Which city was recently declared as the tourism capital of the Country by the government of Nepal?

(A) Pokhara
(B) Lumbini
(C) Kathmandu
(D) More than one of the above
(E) None of the above

Answer: (A) Pokhara
Explanation: Nepal’s government declared Pokhara the country’s tourism capital in 2023.

Q68. Plants appear to bend towards light due to

(A) Concentration of auxins at shoot tip
(B) Diffusion of auxins towards shady side of shoot
(C) Concentration of auxins at root tip
(D) More than one of the above
(E) None of the above

Answer: (B) Diffusion of auxins towards shady side of shoot
Explanation: Auxin moves to the shaded side of the shoot, making cells there grow longer, so the shoot bends towards light.

Q69. What is India’s position in the world on the basis of per capita water availability per year?

(A) 133rd
(B) 140th
(C) 100th
(D) 123rd
(E) None of the above

Answer: (A) 133rd
Explanation: India is commonly cited as ranking 133rd in the world in per capita annual water availability. As per BPSC’s final answer key, the answer is (A).

Q70. Famous for his role during 26/11 Mumbai terrorist attacks, Dr. Sadanand Date was appointed as Chief of which one of the following forces in March 2024?

(A) Enforcement Directorate (ED)
(B) Border Security Force (BSF)
(C) Central Reserve Police Force (CRPF)
(D) More than one of the above
(E) None of the above

Answer: (E) None of the above
Explanation: Sadanand Date was appointed Director General of the National Investigation Agency (NIA) in March 2024, which is not among the options.

How to Prepare for BPSC TRE General Studies

• Work out every maths question on paper. (E) None of the above is often the answer, so check your result rather than picking the closest option.
• Read options (D) and (E) carefully. They are real answers in TRE, not fillers.
• Give extra time to Bihar: districts, crops, and Bihar’s role in the freedom struggle.
• Revise current affairs from the 12 months before your exam.
• Practise timed mock tests on the ExamYaari app.

More BPSC TRE Resources

• All BPSC TRE General Studies question papers
• यही प्रश्न पत्र हिंदी में देखें
• BPSC TRE 4.0 Recruitment 2026
• BPSC TRE 4.0 Syllabus 2026

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