DLPT Science and Technology Texts — Questions and Answers
Question 1: A technical passage states: 'The new satellite telemetry system achieves latency reductions of approximately 40 milliseconds compared to legacy ground-based relay stations, enabling near-real-time data transmission for time-sensitive military operations.' What is the primary advantage described?
- The system is less expensive to maintain than ground-based stations
- It reduces data transmission delays compared to older relay systems (Correct answer)
- It eliminates the need for satellite infrastructure entirely
- It improves data encryption standards for classified communications
Correct answer: It reduces data transmission delays compared to older relay systems
The passage explicitly states the system achieves 'latency reductions' compared to 'legacy ground-based relay stations,' enabling near-real-time transmission. The advantage described is reduced delay, not cost savings, elimination of satellites, or encryption improvements.
Question 2: A scientific text reads: 'Desalination throughput is constrained by membrane biofouling, which reduces permeability over time and necessitates periodic chemical cleaning cycles that interrupt continuous operations.' What problem does biofouling cause?
- It permanently destroys desalination membranes after a single cycle
- It decreases the membranes' ability to pass water through over time (Correct answer)
- It introduces chemical contaminants directly into the drinking water
- It accelerates the speed of water filtration beyond safe limits
Correct answer: It decreases the membranes' ability to pass water through over time
'Biofouling reduces permeability' means it makes the membranes less able to allow water through. The passage says this requires cleaning cycles but does not say the damage is permanent, that contaminants enter the water, or that filtration speeds up.
Question 3: A passage about aerospace technology states: 'Composite materials have supplanted traditional aluminum alloys in airframe construction due to their superior strength-to-weight ratio, though their susceptibility to delamination under repeated stress cycles remains an engineering challenge.' Which statement best summarizes this passage?
- Composite materials are no longer used in airframes because delamination makes them unsafe
- Aluminum alloys are stronger than composites but significantly heavier
- Composites offer a weight advantage over aluminum but have a structural vulnerability (Correct answer)
- Delamination is a problem that affects aluminum alloys but not composite materials
Correct answer: Composites offer a weight advantage over aluminum but have a structural vulnerability
The passage states composites replaced aluminum due to a better strength-to-weight ratio (an advantage), but delamination under stress is a remaining challenge (a vulnerability). Option C accurately captures both points without distorting either.
Question 4: A technology article reports: 'The proliferation of commercial drone technology has outpaced regulatory frameworks in most jurisdictions, creating surveillance and airspace security vulnerabilities that defense analysts consider an emergent threat vector.' What concern is expressed?
- Commercial drones have become too expensive for widespread military use
- Regulations have evolved faster than drone technology can adapt to them
- The rapid spread of drone technology has created security gaps that laws have not kept up with (Correct answer)
- Defense analysts support unrestricted commercial drone use for surveillance purposes
Correct answer: The rapid spread of drone technology has created security gaps that laws have not kept up with
'Outpaced regulatory frameworks' means technology spread faster than regulations could follow. This gap creates security vulnerabilities. Options A, B, and D contradict or misrepresent what the passage actually states.
Question 5: A scientific passage on epidemiology notes: 'Zoonotic transmission events — instances where pathogens cross from animal reservoirs to human populations — have increased in frequency as human encroachment on wildlife habitats intensifies.' What does the passage identify as a cause of increased zoonotic events?
- Improvements in pathogen detection technology revealing previously unseen cases
- Humans moving into areas previously occupied primarily by wildlife (Correct answer)
- Animals migrating in greater numbers into urban centers
- Declining biodiversity in remote and uninhabited regions
Correct answer: Humans moving into areas previously occupied primarily by wildlife
The passage directly states that 'human encroachment on wildlife habitats' drives the increase in zoonotic transmission. Option B correctly describes this — humans expanding into wildlife areas. The other options are not mentioned as causes.
Question 6: A technology passage states: 'Quantum computing's theoretical advantage over classical computing in cryptographic applications stems from its ability to evaluate superposition states simultaneously, potentially rendering current RSA encryption standards obsolete.' What implication does the passage raise?
- Quantum computers are already widely deployed and breaking RSA encryption today
- Classical computers will soon be more powerful than quantum computers
- RSA encryption could become ineffective if quantum computing advances sufficiently (Correct answer)
- Superposition states make quantum computers less reliable than classical ones
Correct answer: RSA encryption could become ineffective if quantum computing advances sufficiently
The passage says quantum computing could 'render RSA encryption obsolete,' meaning it would no longer be effective as a security standard. The word 'potentially' indicates this is a future risk, not a current reality. The passage does not say classical computers are superior or that quantum computers are unreliable.
DLPT Science and Technology Texts
A technical passage states: 'The new satellite telemetry system achieves latency reductions of approximately 40 milliseconds compared to legacy ground-based relay stations, enabling near-real-time data transmission for time-sensitive military operations.' What is the primary advantage described?