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UPSC Science & Technology PYQs 2000 | Vaidra | Vaidra
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Science & Technology UPSC PYQ 2000

63 questions from the UPSC 2000 examination. Showing a preview of 3 below — generate a full practice test to solve the rest.

3 questions

1Easyprelims2 marks
Space Technology & Astronomy
A ‘black hole’ is a body in space which does not allow any radiation to come out. This property is due to its
Avery small size
Bvery large size
Cvery high density
Dvery low density
2Easyprelims2 marks
Health & Diseases
Most of the explosions in mines occur due to the mixing of
Ahydrogen with oxygen
Boxygen with acetylene
Cmethane with air
Dcarbon dioxide with ethane
3Mediumprelims2 marks
Biotechnology & Genetics
Assertion (A): “DNA Finger-printing” has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason (R): Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.
ABoth A and R are true, and R is the correct explanation of A
BBoth A and R are true, but R is not a correct explanation of A
CA is true, but R is false
DA is false, but R is true

60 more Science & Technology 2000 questions await

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Science & Technology — All Years|All Subjects