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Daily Current Affairs Quiz 5 April 2023
- April 5, 2023
- Posted by: Admin
- Category: Current Affairs Quiz GK Today Quiz
Daily Current Affairs Quiz UPSC | Daily Current Affairs Quiz 2023
This quiz is designed to introduce you to concepts and key facts related to Civil Service Exams 2023 such as UPSC, MPPSC, BPSC, UPPCS, and others. This is not a knowledge test. Do not worry if you receive a lower score.
The following quiz will consist of 5 multiple-choice questions (MCQs). The questions are mostly based on news stories from The Hindu and PIB, among other sources.
Try your best to enjoy the questions, talk about the ideas and information they are trying to get you to believe and offer suggestions for improvement.
I hope you enjoy the test. Please spread the word if you enjoy it. Thank you very much.
Daily Current Affairs Quiz 5 April 2023
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Question 1 of 5
1. Question
1 pointsSpace internet companies prefer low-earth-orbit (LEO) satellites over geostationary-orbit satellites (GOS) because
Correct
a) the latency of signal from GOS satellites is much higher than that from LEO satellites.
Geostationary orbit is located at a height of 35,786 km over the Earth’s surface, directly above the Equator. Satellites in this orbit move at speeds of about 11,000 km per hour, and complete one revolution of the Earth in the same time that the earth rotates once on its axis. To the observer on the ground, therefore, a satellite in geostationary orbit appears stationary.
Signals from geostationary orbit can cover a very large part of the Earth. Signals from one satellite can cover roughly a third of the planet — and three to four satellites would be enough to cover the entire Earth. Also, because they appear to be stationary, it is easier to link to them.
However, there is a time lag — called latency — between a user seeking data, and the server sending that data.
And because data transfers cannot happen faster than the speed of light, the longer the distance that needs to be covered the greater is the time lag, or latency.
A transmission from a satellite in geostationary orbit has a latency of about 600 milliseconds.
A satellite in the lower orbit, 200-2,000 km from the Earth’s surface, can bring the lag down to 20-30 milliseconds, roughly the time it takes for terrestrial systems to transfer data.
However, owing to their lower height, their signals cover a relatively small area. As a result, many more satellites are needed in order to reach signals to every part of the planet.
Incorrect
a) the latency of signal from GOS satellites is much higher than that from LEO satellites.
Geostationary orbit is located at a height of 35,786 km over the Earth’s surface, directly above the Equator. Satellites in this orbit move at speeds of about 11,000 km per hour, and complete one revolution of the Earth in the same time that the earth rotates once on its axis. To the observer on the ground, therefore, a satellite in geostationary orbit appears stationary.
Signals from geostationary orbit can cover a very large part of the Earth. Signals from one satellite can cover roughly a third of the planet — and three to four satellites would be enough to cover the entire Earth. Also, because they appear to be stationary, it is easier to link to them.
However, there is a time lag — called latency — between a user seeking data, and the server sending that data.
And because data transfers cannot happen faster than the speed of light, the longer the distance that needs to be covered the greater is the time lag, or latency.
A transmission from a satellite in geostationary orbit has a latency of about 600 milliseconds.
A satellite in the lower orbit, 200-2,000 km from the Earth’s surface, can bring the lag down to 20-30 milliseconds, roughly the time it takes for terrestrial systems to transfer data.
However, owing to their lower height, their signals cover a relatively small area. As a result, many more satellites are needed in order to reach signals to every part of the planet.
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Question 2 of 5
2. Question
1 pointsWith which country India is participating in the SLINEX-2023 Maritime Exercise?
Correct
d) Sri Lanka
The Indian Navy, along with the Sri Lanka Navy is conducting the 10th edition of bilateral maritime exercise SLINEX-2023 in Colombo from April 03, 2023. The Indian Navy is represented by INS Kiltan and INS Savitri, while the Sri Lankan Navy is represented by SLNS Vijayabahu and SLNS Samudura. In addition to this, Indian Navy’s Chetak helicopters and Dornier maritime patrol aircraft and BEL 412 helicopters are also participating in it. The purpose of its organization is to strengthen cooperation in the maritime sector between India and Sri Lanka. It will conclude on April 08.
Incorrect
d) Sri Lanka
The Indian Navy, along with the Sri Lanka Navy is conducting the 10th edition of bilateral maritime exercise SLINEX-2023 in Colombo from April 03, 2023. The Indian Navy is represented by INS Kiltan and INS Savitri, while the Sri Lankan Navy is represented by SLNS Vijayabahu and SLNS Samudura. In addition to this, Indian Navy’s Chetak helicopters and Dornier maritime patrol aircraft and BEL 412 helicopters are also participating in it. The purpose of its organization is to strengthen cooperation in the maritime sector between India and Sri Lanka. It will conclude on April 08.
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Question 3 of 5
3. Question
1 pointsProsopis chilensis, recently seen in news is?
Correct
c) An invasive plant from South America
Prosopis Chilensis
· Prosopis chilensis is a drought-resistant plant.
· Prosopis chilensis is a species of tree in the genus Prosopis, belonging to the family Fabaceae.
· It is found in parts of central Chile, southern Peru, Bolivia, and Andean Argentina.
· Its common names include Chilean mesquite, cupesí, and Chilean Algarrobo.
· It is a trouble for Gulf of Mannar island groups.
· It is not only trouble for these islands but also Tuticorin, Vembar, Kilakkarai, and Mandapam groups.
· The coral reef has been destroyed in several places near these islands.
An invasive plant from South America is threatening indigenous plants across Gulf of Mannar islands.
Incorrect
c) An invasive plant from South America
Prosopis Chilensis
· Prosopis chilensis is a drought-resistant plant.
· Prosopis chilensis is a species of tree in the genus Prosopis, belonging to the family Fabaceae.
· It is found in parts of central Chile, southern Peru, Bolivia, and Andean Argentina.
· Its common names include Chilean mesquite, cupesí, and Chilean Algarrobo.
· It is a trouble for Gulf of Mannar island groups.
· It is not only trouble for these islands but also Tuticorin, Vembar, Kilakkarai, and Mandapam groups.
· The coral reef has been destroyed in several places near these islands.
An invasive plant from South America is threatening indigenous plants across Gulf of Mannar islands.
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Question 4 of 5
4. Question
1 pointsISRO successfully tests reusable launch vehicles in collaboration with DRDO and which other organisation?
Correct
c) Indian Air Force
In a major breakthrough, the Indian Space Research Organization (ISRO) has successfully tested the Reusable Launch Vehicle Autonomous Landing Mission (RLV LEX). This mission was accomplished with the help of DRDO and the Indian Air Force and its testing was done from Aeronautical Test Range (ATR), Chitradurga, Karnataka. This is the first time in the world that a ‘wing body’ was taken to an altitude of 4.5 km with the help of a helicopter and released for an autonomous landing on the runway. The first testing of RLV was started by ISRO in 2010, but its testing was postponed due to technical reasons.
Incorrect
c) Indian Air Force
In a major breakthrough, the Indian Space Research Organization (ISRO) has successfully tested the Reusable Launch Vehicle Autonomous Landing Mission (RLV LEX). This mission was accomplished with the help of DRDO and the Indian Air Force and its testing was done from Aeronautical Test Range (ATR), Chitradurga, Karnataka. This is the first time in the world that a ‘wing body’ was taken to an altitude of 4.5 km with the help of a helicopter and released for an autonomous landing on the runway. The first testing of RLV was started by ISRO in 2010, but its testing was postponed due to technical reasons.
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Question 5 of 5
5. Question
1 pointsConsider the following statements
1. Alumina is the main components of bauxite ore.
2. Bayer Process is the industrial means of refining bauxite to produce alumina.
Choose the incorrect statements:Correct
c) Neither 1 nor 2
Alumina is the main components of bauxite, so bauxite is refined in order to produce Alumina.
· Alumina, also called aluminum oxide, synthetically produced Al2O3, a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminum metal. Hence, statement 1 is correct.The Bayer process is the principal way for producing alumina by refining Bauxite.
· Bauxite other than with 30-60% of aluminum oxide contains mixture of silica, iron oxides and titanium dioxide.Bayer process of producing alumina can be divided into following four steps:
Digestion
Filtration
Precipitation
Calcination
Hence, statement 2 is correct.Scientists have estimated the quantity of rare earth elements that can be recovered from a toxic byproduct of aluminum extraction.
Incorrect
c) Neither 1 nor 2
Alumina is the main components of bauxite, so bauxite is refined in order to produce Alumina.
· Alumina, also called aluminum oxide, synthetically produced Al2O3, a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminum metal. Hence, statement 1 is correct.The Bayer process is the principal way for producing alumina by refining Bauxite.
· Bauxite other than with 30-60% of aluminum oxide contains mixture of silica, iron oxides and titanium dioxide.Bayer process of producing alumina can be divided into following four steps:
Digestion
Filtration
Precipitation
Calcination
Hence, statement 2 is correct.Scientists have estimated the quantity of rare earth elements that can be recovered from a toxic byproduct of aluminum extraction.
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