UPSC Prelims Marathon 24th April – Science – III – 2024

Consider the following statements regarding “Net Energy Gain (NEG)”:
1.It implies nuclear fusion process generates more energy than the nuclear fusion process consumes.
2.India is a part of the International Thermonuclear Experimental Reactor (ITER) project to demonstrate NEG from the fusion reactors.
Which of the statements given above is/are correct?

Consider the following statements regarding “uranium enrichment”:
1.Weapon-grade uranium is considered enriched above 90 percent U-235.
2.Highly enriched uranium (HEU) is anything enriched above 20 percent U-235.
Which of the statements given above is/are correct?

The “Advanced Liquid Processing System” is recently seen in news related to?

Which of the following is/are advantage/s of “Direct Methanol Fuel Cells (DMFC’s)”?
1.High energy density
2.High efficiency
3.High operating temperatures
How many of the statements given above are correct?

Which of the following is/are lanthanide elements?
1.Neodymium
2.Promethium
3.Cadmium
How many of the statements given above are correct?

In which of the following application/s is/are rare earth elements used?
1.Computers
2.Cell phones
3.Electric vehicles
How many of the statements given above are correct?

Which of the following country is the largest exporter of “vanadium”?

Which of the following is/are characteristic/s of lab grown diamonds?
1.No dirt or impurities ingrained in it.
2.Created with little to no environmental damage.
3.They mostly came from conflict areas.
How many of the statements given above are correct?

The “BepiColombo spacecraft” is recently seen in news to study which of the following planet?