Previous year questions · CIL (Coal India Limited)

CIL (Coal India Limited) Paper — Previous Year Questions

350 Paper questions asked in past CIL (Coal India Limited) papers, split into 35 timed practice sets — every question with its answer and explanation.

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About CIL (Coal India Limited) Paper previous year questions

This page collects every Paper question that has appeared in past CIL (Coal India Limited) papers on AajExam — 350 questions in total, organised into 35 short, timed practice sets. Each question is shown with its four options, the correct answer, and an explanation of the reasoning, so you can use the page either as a self-test or as a revision reference. Why previous year questions are the highest-value Paper preparation you can do for CIL (Coal India Limited): recruitment boards reuse a stable pool of concepts across cycles. The wording changes, the underlying idea rarely does. Working through a few hundred genuine past Paper questions teaches you which sub-topics the paper actually rewards, how the examiner likes to frame distractors, and roughly how long each question type should take — none of which a syllabus document can tell you. How to use this page: attempt questions in blocks of ten without looking at the answers, then review every question you got wrong or guessed. Read the explanation for the concept, not just the answer letter. When a concept keeps catching you out, open the related topic page linked below and drill that single area before returning here. Repeat across the full bank, and track how your accuracy on the second pass compares with your first — a 15-20% improvement is normal and is the clearest sign your preparation is working. What is in this bank: the questions are transcribed from actual CIL (Coal India Limited) question papers, kept in the original order and wording, with solutions written by subject specialists. Sets are free to attempt, work on mobile, and need no login to read. If you would rather practise a complete paper end to end under exam conditions, the full CIL (Coal India Limited) previous-year papers are linked below as well.

Paper PYQs asked in CIL (Coal India Limited)

A sample of 30 questions from the full bank of 350. Try each one before opening the solution — the remaining questions are in the timed practice sets below.

Q1.Sentences of a paragraph are given below. While theﬁrst and the last sentences (S1 and S6) are in the correct order, the sentences in between are jumbled up. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. S1 . Machinery is like a snake-hole which may contain from one to a hundred snakes. Honest physicians will tell you that where means of artiﬁcial locomotion have increased, the health of the people has suffered. Where there is machinery, there are large cities. English villages do not boast of any of these things. Where there are large cities, there are cars, buses, and electric lights. S6. I cannot recall a single good point in connection with machinery.
- A.BDAC BDCA ABCD ACBD
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. BDAC BDCA ABCD ACBD
Q2.[[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] Q.1 0 What is the most effective GIS application for monitoring deforestation in India?
- A.Fiscal impact assessment Fleet assessment Land cover mapping
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Fiscal impact assessment Fleet assessment Land cover mapping
Q3.0 In which year was the 'World Wildlife Fund', the leading organisation in wildlife conservation 3 and endangered species, established?
- A.1 968 2. 1 961
- B.Option 2
- C.1 975
- D.1 983
Show answer
Answer: A. 1 968 2. 1 961
Q4.0 In which of the following conditions will gross and net caloriﬁc values of the given fuel be the 4 same? Ans [[TICK]] 1 . When hydrogen content is zero When carbon content is equal to hydrogen content When ash content is zero When there's 50% volatile matter
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q5.0 Which of the following bins are commonly used for collecting organic waste in urban areas?
- A.Blue bins Red bins Green bins Yellow bins
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Blue bins Red bins Green bins Yellow bins
Q6.0 In which of the following years were the Indian Forest Act and the Forest (Conservation) Act 6 established?
- A.1 820 and 1 947, respectively 1 927 and 1 980, respectively 1 825 and 1 949, respectively 1 947 and 1 971 , respectively
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. 1 820 and 1 947, respectively 1 927 and 1 980, respectively 1 825 and 1 949, respectively 1 947 and 1 971 , respectively
Q7.0 What is the principle used in a chemiluminescence detector for measuring nitrogen dioxide? Ans [[TICK]] 1 . Emission of light during a chemical reaction Adsorption onto a solid surface Absorption of ultraviolet radiation Change in electrical resistance of a sensor
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q8.0 All of the following are the effects of increased eutrophication EXCEPT:
- A.increase in turbidity decrease in rate of sedimentation possibility of anoxic conditions developing decrease in species diversity
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. increase in turbidity decrease in rate of sedimentation possibility of anoxic conditions developing decrease in species diversity
Q9.0 What is the primary environmental concern associated with excessive nitrates and phosphates 9 in water bodies? Ans [[TICK]] 1 . Eutrophication, leading to algal blooms and oxygen depletion Increased water clarity and improved oxygen levels Reduction in water temperature, promoting aquatic biodiversity Enhanced growth of beneﬁcial aquatic plants without adverse effects
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q10.Which process plays the primary role in generating water vapour within the hydrosphere?
- A.Runoff water Condensation Evaporation Precipitation
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Runoff water Condensation Evaporation Precipitation
Q11.For applications sensitive to frictional torque and operating under light loads, which type of lubricant is preferred?
- A.High viscosity Coolant Low viscosity Adhesive
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. High viscosity Coolant Low viscosity Adhesive
Q12.Which of the following best describes the energy-efficient approach when replacing O-rings in high-pressure systems? Ans [[TICK]] 1. Select material based on pressure/temp/fluid Replace only on major leak Apply grease to seal Use larger O-rings
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q13.The direction of rotation of a three-phase induction motor can be reversed by which of the following?
- A.Adding resistance to the stator Interchanging any two supply phases Changing frequency of supply Increasing the supply voltage
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Adding resistance to the stator Interchanging any two supply phases Changing frequency of supply Increasing the supply voltage
Q14.In a generator, what happens when the field switch is opened?
- A.The generator's output voltage increases. The generator stops producing power. The generator continues to operate normally. The generator experiences a short circuit.
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. The generator's output voltage increases. The generator stops producing power. The generator continues to operate normally. The generator experiences a short circuit.
Q15.Which Article of the Indian Constitution deals with the Right to Property after it was deleted from the list of fundamental rights?
- A.Article 300A Article 31 Article 1 9(f) Article 1 2
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Article 300A Article 31 Article 1 9(f) Article 1 2
Q16.भारत सरकार gारा बw1 म* पढ़ने कl आदत Pवकfसत करने के fलए समग्र fशक्षा के तहत एक पृथक वाfषक पुस्तकालय अनुदान का प्रावधान Pनम्नfलÎ**खत म* से कब Pकया गया था?
- A.201 9-20 2. 201 8-1 9
- B.Option 2
- C.2020-21
- D.201 7-1 8
Show answer
Answer: A. 201 9-20 2. 201 8-1 9
Q17.Which of the following Portuguese governors captured Goa in 1 51 0, marking the beginning of Portuguese dominance in the Indian Ocean?
- A.Vasco da Gama Nino da Cunha Afonso de Albuquerque Francisco de Almeida
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Vasco da Gama Nino da Cunha Afonso de Albuquerque Francisco de Almeida
Q18.Which of the following Central Universities was established in 201 9?
- A.Central University of Kerala Central University of South Bihar Central University of Andhra Pradesh Central University of Karnataka
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Central University of Kerala Central University of South Bihar Central University of Andhra Pradesh Central University of Karnataka
Q19.What was the revolutionary journal published by Madam Cama in Paris?
- A.Hind Swaraj The Indian Sociologist Young India Bande Mataram
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Hind Swaraj The Indian Sociologist Young India Bande Mataram
Q20.Which of the following statements correctly depicts the growth of the industrial sector in FY23 compared to FY22 in India?
- A.Industry sector witnessed a growth of 4.3 Industry sector witnessed the same growth in both FY23 and FY22 Industry sector witnessed a growth of 1 0.1 % in FY23 Industry sector witnessed lower growth in FY23 as compared to FY22
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Industry sector witnessed a growth of 4.3 Industry sector witnessed the same growth in both FY23 and FY22 Industry sector witnessed a growth of 1 0.1 % in FY23 Industry sector witnessed lower growth in FY23 as compared to FY22
Q21.2025 म*, साPहत्य और fशक्षा के क्षेत्र म* पद्म Pवभूषण (मरणोपरांत) से Pनम्नfलÎ**खत म* से Pकसे सम्माPनत Pकया गया? Ans [[TICK]] 1 . एम.टń. वासुदेवन नायर
- A.Option 1
- B.डॉ. राधाकृष्णन Pपल्लई
- C.डॉ. सुधा मूDत
- D.डॉ. Pबबेक देबरॉय
Show answer
Answer: A. Option 1
Q22.भारत का कछार क्षेत्र कl खेती के fलए प्रfसद्ध है।
- A.जीरा
- B.केसर
- C.चाय
- D.कॉफl
Show answer
Answer: B. केसर
Q23.0 The tropical humid climate is hot and humid. The annual range of temperature is very low, and annual rainfall is _.
- A.low high normal very low
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. low high normal very low
Q24.What does the ﬁgure of 1 01 .8 crore e-way bills raised in November 2024 signify? Ans [[TICK]] 1 . Number of electronic permits issued for the movement of goods in November 2024 Total number of businesses registered under GST in November 2024 GST revenue collected in November 2024, reﬂecting the taxes on goods and services Number of tax returns ﬁled under GST up to November 2024
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q25.2 In which year was Fundamental Duties included in the Indian Constitution through the 42nd Amendment?
- A.1 972 2. 1 976
- B.Option 2
- C.1 971
- D.1 970
Show answer
Answer: A. 1 972 2. 1 976
Q26.3 Which of the following memory types is non-volatile and can be electrically erased and reprogrammed?
- A.Cache Memory DRAM EEPROM SRAM
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Cache Memory DRAM EEPROM SRAM
Q27.4 Which of the following is inspired by the Soviet Constitution in the Indian Constitution? Ans [[TICK]] 1 . Fundamental Duties Directive Principles of State Policy Fundamental Rights Preamble
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q28.8 According to the Union Budget 2025-26, the turnover threshold for Micro Enterprises has been increased to:
- A.₹20 crore ₹1 5 crore ₹1 0 crore ₹8 crore
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. ₹20 crore ₹1 5 crore ₹1 0 crore ₹8 crore
Q29.9 The third Meeting of States Parties to the Treaty on the Prohibition of Nuclear Weapons is scheduled to be held in which of the following cities from 3 to 7 March 2025? Ans [[TICK]] 1 . New York Vienna Geneva Tokyo
- A.Option 1
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. Option 1
Q30.Which initiative, designed to revolutionise public service delivery and boost citizen engagement through generative AI in language, speech, and computer vision, was inaugurated in October 2024?
- A.AI for India SmartGov AI BharatGen Digital India AI
- B.Option 2
- C.Option 3
- D.Option 4
Show answer
Answer: A. AI for India SmartGov AI BharatGen Digital India AI

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Frequently Asked Questions

How many CIL (Coal India Limited) Paper previous year questions are available?

350 Paper questions from past CIL (Coal India Limited) papers are available on AajExam, split into 35 practice sets. New questions are added as fresh papers are released.

Are the answers and explanations free?

Yes. Every question on this page shows its correct answer and explanation free of charge, and you do not need an account to read them. A free account only adds attempt tracking and performance analytics.

Do CIL (Coal India Limited) repeat questions from previous years?

Exact repeats do occur, but the more reliable pattern is conceptual: the same Paper sub-topics reappear cycle after cycle with reworded questions. That is why working through past questions raises your score more reliably than reading theory alone.

How should I use these questions in my CIL (Coal India Limited) preparation?

Attempt a set of ten cold, review every wrong and guessed question with its explanation, then drill the weak sub-topic on its topic page before moving on. Revisit the same set after a few days — your second-attempt accuracy is the honest measure of whether the concept stuck.

CIL (Coal India Limited) Paper practice sets

Each set is a timed 10-question drill drawn from the same question bank.

About CIL (Coal India Limited) Paper previous year questions

Paper PYQs asked in CIL (Coal India Limited)

Q2.[[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] [[TICK]] Q.1 0 What is the most effective GIS application for monitoring deforestation in India?

Q3.0 In which year was the 'World Wildlife Fund', the leading organisation in wildlife conservation 3 and endangered species, established?

Q4.0 In which of the following conditions will gross and net caloriﬁc values of the given fuel be the 4 same? Ans [[TICK]] 1 . When hydrogen content is zero When carbon content is equal to hydrogen content When ash content is zero When there's 50% volatile matter

Q5.0 Which of the following bins are commonly used for collecting organic waste in urban areas?

Q6.0 In which of the following years were the Indian Forest Act and the Forest (Conservation) Act 6 established?

Q7.0 What is the principle used in a chemiluminescence detector for measuring nitrogen dioxide? Ans [[TICK]] 1 . Emission of light during a chemical reaction Adsorption onto a solid surface Absorption of ultraviolet radiation Change in electrical resistance of a sensor

Q8.0 All of the following are the effects of increased eutrophication EXCEPT:

Q10.Which process plays the primary role in generating water vapour within the hydrosphere?

Q11.For applications sensitive to frictional torque and operating under light loads, which type of lubricant is preferred?

Q12.Which of the following best describes the energy-efficient approach when replacing O-rings in high-pressure systems? Ans [[TICK]] 1. Select material based on pressure/temp/fluid Replace only on major leak Apply grease to seal Use larger O-rings

Q13.The direction of rotation of a three-phase induction motor can be reversed by which of the following?

Q14.In a generator, what happens when the field switch is opened?

Q15.Which Article of the Indian Constitution deals with the Right to Property after it was deleted from the list of fundamental rights?

Q17.Which of the following Portuguese governors captured Goa in 1 51 0, marking the beginning of Portuguese dominance in the Indian Ocean?

Q18.Which of the following Central Universities was established in 201 9?

Q19.What was the revolutionary journal published by Madam Cama in Paris?

Q20.Which of the following statements correctly depicts the growth of the industrial sector in FY23 compared to FY22 in India?

Q22.भारत का कछार क्षेत्र कl खेती के fलए प्रfसद्ध है।

Q23.0 The tropical humid climate is hot and humid. The annual range of temperature is very low, and annual rainfall is _.

Q25.2 In which year was Fundamental Duties included in the Indian Constitution through the 42nd Amendment?

Q26.3 Which of the following memory types is non-volatile and can be electrically erased and reprogrammed?

Q27.4 Which of the following is inspired by the Soviet Constitution in the Indian Constitution? Ans [[TICK]] 1 . Fundamental Duties Directive Principles of State Policy Fundamental Rights Preamble

Q28.8 According to the Union Budget 2025-26, the turnover threshold for Micro Enterprises has been increased to:

Q29.9 The third Meeting of States Parties to the Treaty on the Prohibition of Nuclear Weapons is scheduled to be held in which of the following cities from 3 to 7 March 2025? Ans [[TICK]] 1 . New York Vienna Geneva Tokyo

Q30.Which initiative, designed to revolutionise public service delivery and boost citizen engagement through generative AI in language, speech, and computer vision, was inaugurated in October 2024?

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