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GK Previous Year Questions (PYQ)

GK questions actually asked in SSC, Banking, Railway and other exam papers, with the exam, year and shift, answers and explanations. Pick a subject or an exam.

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Recently added previous-year questions

Q1.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which of the following statements associated with cancer is/are correct ? 1. Oncogenes expression and some viral infections can cause cancer 2. In metastasis, the cancer cells spread through the blood and lymphatic system Select the answer using the code given below:

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

Both statements describe how cancer starts and how it spreads, and both are correct. Cancer is uncontrolled division of cells.

Q2.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which one of the following statements is NOT correct ?

  1. A.Single celled eukaryotes belong to Kingdom Protista
  2. B.Yeast, a fungus is multicellular
  3. C.The fungi constitute a unique kingdom of heterotrophs
  4. D.Ascomycetes, a saprophytic fungi is multicellular or rarely unicellular
Show answer
Correct answer: B. Yeast, a fungus is multicellular

This statement is false, because yeast is one of the few fungi that are unicellular. In Whittaker's five-kingdom system, fungi form a separate kingdom.

Q4.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which of the following statements is/are associated with role of enzymes in genetic engineering? 1. Exonucleases remove nucleotides from the ends of DNA 2. Restriction endonucleases are used to form recombinant molecule of DNA Select the answer using the code given below:

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

Both statements describe how nucleases are used as tools of recombinant DNA technology. Nucleases are enzymes that break the phosphodiester bonds of DNA.

Q5.Environment & EcologyAsked in: CDS · CDS-II 2026, GKEasy

Which of the following can be considered associated with mitigation of environmental problems ?

  1. A.Biomagnification
  2. B.Accelerated eutrophication
  3. C.Release of Nuclear wastes
  4. D.Categorical disposal of different wastes
Show answer
Correct answer: D. Categorical disposal of different wastes

Sorting wastes into categories and disposing of each in the proper way reduces pollution, so it helps solve environmental problems rather than cause them.

Q6.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which of the following statements is NOT correct ?

  1. A.Hardy-Weinberg Principle says that allele frequencies in a population is unstable
  2. B.Branching descent and natural selection are the two key concepts of Darwinian Theory of evolution
  3. C.Lamarckism is based on inheritance of acquired character
  4. D.The concept of mutation, gene flow, genetic drift, gene recombination and natural selection affect Hardy-Weinberg equilibrium
Show answer
Correct answer: A. Hardy-Weinberg Principle says that allele frequencies in a population is unstable

The Hardy-Weinberg principle states the opposite: allele frequencies in a population stay stable, that is constant, from generation to generation.

Q8.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which of the following is associated to Schizophrenia ?

  1. A.Multiple personalities
  2. B.Neurodegeneration
  3. C.Not subjected to environmental influence
  4. D.Hallucination
Show answer
Correct answer: D. Hallucination

Hallucinations, most often hearing voices that others cannot hear, are a core symptom of schizophrenia. Schizophrenia is a serious mental disorder in which a person loses touch with reality.

Q10.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Consider the following statements associated with Malaria : 1. Only the female Anopheles mosquitoes take human blood for reproduction 2. Plasmodium can pass across the placenta from mother to foetus Which of the statements given above is/are correct ?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

Female Anopheles mosquitoes bite humans because they need blood to mature their eggs, and the malaria parasite can cross the placenta.