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MPPSC 2025 — Science & Technology Questions with Answers

All 15 Science & Technology previous-year questions from MPPSC 2025, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.

1. Q1.Space

   Consider the following statements: Statement I : Scientific studies suggest that a shift is taking place in the Earth's rotation and axis. Statement II : Solar flares and associated coronal mass ejections bombarded the Earth's outermost atmosphere with tremendous amount of energy. Statement III : As the Earth's polar ice melts, the water tends to move towards the equator. Which one of the following is correct in respect of the above statements?

   • a)Both Statement II and Statement III are correct and both of them explain Statement I
   • b)Both Statement II and Statement III are correct but only one of them explains Statement I
   • c)Only one of the Statements II and III is correct and that explains Statement I
   • d)Neither Statement II nor Statement III is correct
2. Q2.Energy

   With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct? I. It can be used as a way of carbon sequestration. II. It can be a valuable approach for plastic production and in food processing. III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel. Select the correct answer using the code given below.

   • a)I and II only
   • b)III only
   • c)I, II and III
   • d)None of the above statements is correct
3. Q3.Botany

   Consider the following pairs: Plant Description I. Cassava : Woody shrub II. Ginger : Herb with pseudostem III. Malabar spinach : Herbaceous climber IV. Mint : Annual shrub V. Papaya : Woody shrub How many of the above pairs are correctly matched?

   • a)Only two
   • b)Only three
   • c)Only four
   • d)All the five
4. Q4.Energy

   Consider the following types of vehicles: I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?

   • a)Only one
   • b)Only two
   • c)All the three
   • d)None
5. Q5.Aviation

   With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements: I. All types of UAVs can do vertical landing. II. All types of UAVs can do automated hovering. III. All types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?

   • a)Only one
   • b)Only two
   • c)All the three
   • d)None
6. Q6.Chemistry

   In the context of electric vehicle batteries, consider the following elements: I. Cobalt II. Graphite III. Lithium IV. Nickel How many of the above usually make up battery cathodes?

   • a)Only one
   • b)Only two
   • c)Only three
   • d)All the four
7. Q7.Chemistry

   Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them?

   • a)Only one
   • b)Only two
   • c)All the three
   • d)None
8. Q8.Chemistry

   What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

   • a)These are alternatives to hydrofluorocarbon refrigerants
   • b)These are explosives in military weapons
   • c)These are high-energy fuels for cruise missiles
   • d)These are fuels for rocket propulsion
9. Q9.Information Technology

   Consider the following statements: I. It is expected that Majorana 1 chip will enable quantum computing. II. Majorana 1 chip has been introduced by Amazon Web Services (AWS). III. Deep learning is a subset of machine learning. How many of the statements given above are correct?

   • a)Only one
   • b)Only two
   • c)All the three
   • d)None
10. Q10.Biotechnology

    With reference to monoclonal antibodies, often mentioned in news, consider the following statements: I. They are man-made proteins. II. They stimulate immunological function due to their ability to bind to specific antigens. III. They are used in treating viral infections like that of Nipah virus. Which of the statements given above are correct?

    • a)I and II only
    • b)II and III only
    • c)I and III only
    • d)I, II and III
11. Q11.Chemistry

    Consider the following statements: Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. Statement II: Some rare earth elements have phosphorescent properties. Which one of the following is correct in respect of the above statements?

    • a)Both Statement I and Statement II are correct and Statement II explains Statement I
    • b)Both Statement I and Statement II are correct but Statement II does not explain Statement I
    • c)Statement I is correct but Statement II is not correct
    • d)Statement I is not correct but Statement II is correct
12. Q12.Railway Technology

    Consider the following statements: I. Indian Railways have prepared a National Rail Plan (NRP) to create a 'future ready' railway system by 2028. II. 'Kavach' is an Automatic Train Protection system developed in collaboration with Germany. III. 'Kavach' system consists of RFID tags fitted on track in station section. Which of the statements given above are not correct?

    • a)I and II only
    • b)II and III only
    • c)I and III only
    • d)I, II and III
13. Q13.Space

    Consider the following space missions: I. Axiom-4 II. SpaDeX III. Gaganyaan How many of the space missions given above encourage and support micro-gravity research?

    • a)Only one
    • b)Only two
    • c)All the three
    • d)None
14. Q14.Defence

    With reference to India's defence, consider the following pairs: Aircraft type Description I. Dornier-228 : Maritime patrol aircraft II. IL-76 : Supersonic combat aircraft III. C-17 Globemaster III : Military transport aircraft How many of the pairs given above are correctly matched?

    • a)Only one
    • b)Only two
    • c)All the three
    • d)None
15. Q15.Space Technology

    GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in respect of GAGAN? I. It is designed to provide additional accuracy and integrity. II. It will allow more uniform and high quality air traffic management. III. It will provide benefits only in aviation but not in other modes of transportation. Select the correct answer using the code given below.

    • a)I, II and III
    • b)II and III only
    • c)I only
    • d)I and II only