Current Affairs Quiz 11 April 2024
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Current Affairs Quiz 11 April 2024 for UPSC Prelims
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- Question 1 of 5
1. Question
With reference to Coordinated Lunar Time (LTC) and Earth’s Time Standard – Coordinated Universal Time (UTC), consider the following statements:
1. LTC serves as a precise time-keeping standard primarily for Earth-based operations.
2. Due to lower gravity on the Moon, time passes slightly slower compared to Earth, creating a time discrepancy of approximately 58.7 microseconds per Earth day.
3. UTC is determined using a weighted average of over 400 atomic clocks worldwide, measuring time based on the resonant frequencies of atoms like cesium-133.Which of the statements given above is/are correct?
CorrectAnswer: (b) 2 and 3 only
Explanation:
Statement 1 is incorrect as LTC serves as a precise time-keeping standard for lunar spacecraft, satellites, and lunar missions, ensuring synchronized communication between satellites, astronauts, bases, and Earth, not primarily for Earth-based operations.
Statement 2 is correct as due to lower gravity on the Moon, time passes slightly faster compared to Earth, creating a time discrepancy of approximately 58.7 microseconds per Earth day, affecting spacecraft docking, data transfer timing, communication, and navigation.
Statement 3 is correct as UTC is determined using a weighted average of over 400 atomic clocks worldwide, measuring time based on the resonant frequencies of atoms like cesium-133, offering high stability and precision.IncorrectAnswer: (b) 2 and 3 only
Explanation:
Statement 1 is incorrect as LTC serves as a precise time-keeping standard for lunar spacecraft, satellites, and lunar missions, ensuring synchronized communication between satellites, astronauts, bases, and Earth, not primarily for Earth-based operations.
Statement 2 is correct as due to lower gravity on the Moon, time passes slightly faster compared to Earth, creating a time discrepancy of approximately 58.7 microseconds per Earth day, affecting spacecraft docking, data transfer timing, communication, and navigation.
Statement 3 is correct as UTC is determined using a weighted average of over 400 atomic clocks worldwide, measuring time based on the resonant frequencies of atoms like cesium-133, offering high stability and precision. - Question 2 of 5
2. Question
Which among the following countries share border with Turkey?
1) Jordan
2) Bulgaria
3) Armenia
4) Georgia
Select the correct answer using the code given below.CorrectTurkey’s neighbour to the northwest is Bulgaria; Greece to the west; Armenia, Azerbaijan and Iran to the east; Georgia to the northeast; Syria to the south; and Iraq to the southeast.
IncorrectTurkey’s neighbour to the northwest is Bulgaria; Greece to the west; Armenia, Azerbaijan and Iran to the east; Georgia to the northeast; Syria to the south; and Iraq to the southeast.
- Question 3 of 5
3. Question
Consider the following statements about NavIC:
1) It is an independent stand-alone navigation satellite system developed by the Indian Space Research Organisation (ISRO).
2) It consists of six satellites and covers the whole of India’s landmass and up to 1,500 km from its boundaries.
Which of the following statements is/are correct?CorrectNavigation with Indian Constellation (NavIC)
• NavIC is an independent stand-alone navigation satellite system developed by the Indian Space Research Organisation (ISRO).
• NavIC was originally approved in 2006 at a cost of $174 million.
• It was expected to be completed by late 2011, but only became operational in 2018.
• NavIC consists of eight satellites and covers the whole of India’s landmass and up to 1,500 km (930 miles) from its boundaries.
• Application:
o It is being used in public vehicle tracking in India, for providing emergency warning alerts to fishermen venturing into the deep sea where there is no terrestrial network connectivity, and for tracking and providing information related to natural disasters.
o NavIC finds utilization in national projects like public vehicle safety, power grid synchronization, real-time train information system and fishermen safety.
• Significance:
o NavIC is an indigenous positioning system that is under Indian control.
o Removing dependence on foreign satellite systems for navigation service requirements, particularly for “strategic sectors.”
o There is no risk of the service being withdrawn or denied in a given situation.IncorrectNavigation with Indian Constellation (NavIC)
• NavIC is an independent stand-alone navigation satellite system developed by the Indian Space Research Organisation (ISRO).
• NavIC was originally approved in 2006 at a cost of $174 million.
• It was expected to be completed by late 2011, but only became operational in 2018.
• NavIC consists of eight satellites and covers the whole of India’s landmass and up to 1,500 km (930 miles) from its boundaries.
• Application:
o It is being used in public vehicle tracking in India, for providing emergency warning alerts to fishermen venturing into the deep sea where there is no terrestrial network connectivity, and for tracking and providing information related to natural disasters.
o NavIC finds utilization in national projects like public vehicle safety, power grid synchronization, real-time train information system and fishermen safety.
• Significance:
o NavIC is an indigenous positioning system that is under Indian control.
o Removing dependence on foreign satellite systems for navigation service requirements, particularly for “strategic sectors.”
o There is no risk of the service being withdrawn or denied in a given situation. - Question 4 of 5
4. Question
Consider the following statements regarding Atomic Clocks:
1. Atomic clocks are highly accurate timekeeping devices that rely on the resonance frequencies of atoms, commonly cesium or rubidium, to measure time.
2. Atomic clocks were invented in 1955 by Louise Essen.Which of the statements given above is/are correct?
CorrectAnswer: C
Both statements are correct:IncorrectAnswer: C
Both statements are correct: - Question 5 of 5
5. Question
Consider the following statements regarding Hepatitis:
1. Hepatitis A (HAV) is primarily transmitted through contact with infected blood or other body fluids.
2. Hepatitis C (HCV) can often be asymptomatic in its early stages but may lead to chronic liver disease and liver cancer over time.Which of the statements given above is/are correct?
CorrectCorrect Answer: B
1. Hepatitis A (HAV) is primarily transmitted through contaminated food, water, or direct contact with an infected person, not through contact with infected blood or other body fluids.
2. Hepatitis C (HCV) is indeed often asymptomatic in its early stages but can lead to chronic liver disease, cirrhosis, and liver cancer if left untreated.IncorrectCorrect Answer: B
1. Hepatitis A (HAV) is primarily transmitted through contaminated food, water, or direct contact with an infected person, not through contact with infected blood or other body fluids.
2. Hepatitis C (HCV) is indeed often asymptomatic in its early stages but can lead to chronic liver disease, cirrhosis, and liver cancer if left untreated.
