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10 sample questions
Technological Breakthroughs MCQ Practice Test
Scientific discoveries and innovations
Q1. A recent technological breakthrough has enabled the development of a new type of solar panel that can harness energy from sunlight during both day and night. This innovation is made possible by the use of
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A. a special type of glass that allows for the capture of infrared radiation ✓
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B. a new material that can store solar energy for later use
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C. a thin film that can convert UV radiation into electricity
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D. a device that can convert kinetic energy into electrical energy
Explanation: This breakthrough is based on the development of a new type of glass that can capture infrared radiation, allowing for the harnessing of energy during both day and night.
Q2. In January 2023, a team of scientists in the United States announced a breakthrough in the development of a new material that can “hear” and amplify sound waves. This innovation has the potential to improve the quality of sound in …
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A. allow for the creation of more realistic sound effects in video games
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B. enable the development of more efficient hearing aids ✓
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C. facilitate the creation of thinner, lighter speakers
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D. enhance the sensitivity of microphones
Explanation: The new material can detect and amplify sound waves, which could lead to advancements in hearing aid technology, allowing people with hearing impairments to better understand speech and other sounds.
Q3. What is the name of the new satellite launched by SpaceX in February 2023 that will provide high-speed internet to remote areas of the world?
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A. Starlink Gen 2 ✓
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B. OneWeb Constellation
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C. Amazon’s Kuiper Systems
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D. Iridium Next
Explanation: SpaceX launched the Starlink Gen 2 satellite in February 2023, which aims to provide high-speed internet to remote areas of the world. The satellite is part of SpaceX’s Starlink constellation, which is designed to provide global internet coverage.
Q4. Which country is collaborating with the United States on a satellite project designed to monitor ocean health and climate change using advanced radar technology?
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A. India ✓
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B. China
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C. Japan
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D. South Korea
Explanation: India, in collaboration with the United States, is developing the NISAR satellite, which will use advanced radar technology to monitor ocean health and climate change. The satellite is a joint project between NASA and ISRO.
Q5. A recent breakthrough in additive manufacturing allows 3D printers to produce functional electronic circuits and components directly. What is it?
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A. The development of a new 3D printing technology that can create functional electronics ✓
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B. The discovery of a new source of renewable energy
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C. The invention of a robot that can assist with search and rescue missions
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D. The creation of a virtual reality platform for education
Explanation: Recently, scientists have made a breakthrough in 3D printing technology that allows for the creation of functional electronics. This innovation has the potential to revolutionize various industries, including healthcare and consumer electronics.
Q6. Researchers have demonstrated nighttime 'solar' power generation using thermoradiative diodes. What physical principle do these devices exploit?
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A. Radiative cooling - a warm device radiating heat to the cold night sky creates a usable voltage ✓
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B. Storing sunlight in chemical batteries during the day
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C. Concentrating moonlight with mirrors
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D. Harvesting wind chill after sunset
Explanation: Thermoradiative diodes run the photovoltaic effect in reverse: pointed at the cold of space, the warm Earth-facing device radiates infrared and generates a small power potential (demonstrated by UNSW Sydney and Stanford teams). The original 'which country leads' framing was unverifiable.
Q7. A recent breakthrough in Japan has led to the development of a new "smart" road that can...
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A. detect and respond to the presence of wild animals
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B. generate electricity from the movement of vehicles
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C. display real-time traffic information to drivers
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D. all of the above ✓
Explanation: Smart roads utilize various technologies, including sensors and displays, to enhance safety and efficiency. They can detect animals, generate electricity, and provide real-time traffic information.
Q8. Much fast-charging battery research focuses on which approach?
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A. New electrode materials such as silicon anodes and niobium or tungsten oxides that tolerate rapid lithium insertion ✓
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B. Making electrodes thicker
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C. Removing the electrolyte
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D. Raising charging voltages without limit
Explanation: Fast charging is limited by how quickly electrodes accept ions without degradation; research therefore centers on materials engineered for rapid, stable ion intercalation (and matching electrolytes). The original 'nanoporous carbon' attribution was not a settled fact.
Q9. Which of the following is a hypothetical high-speed rail project connecting Taipei and Hong Kong, assuming it would reduce travel time significantly?
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A. Taiwan Strait Expressway
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B. Taipei-Hong Kong Maglev ✓
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C. East Asia Bullet Train
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D. China Sea Express
Explanation: The Taipei-Hong Kong Maglev is a hypothetical high-speed rail project. While not currently in existence, it's a plausible concept for a high-speed rail line connecting Taipei and Hong Kong, and the expected travel time reduction is a common goal for such projects.
Q10. Why can't satellites maintain a stable orbit at the Karman line, 100 km above Earth?
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A. Atmospheric drag is still strong enough there to deorbit them quickly ✓
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B. Gravity is too weak at that altitude
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C. It lies inside the Van Allen radiation belt
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D. International law forbids orbits below 150 km
Explanation: At 100 km the atmosphere, though thin, exerts enough drag to decay an orbit within days to weeks; practical low Earth orbits start around 160 km minimum and most operate above 400 km. The original premise of an asteroid-hunting satellite at the Karman line was fabricated.
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