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January 05 2024 Prelims Practice Questions (PPQs)
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- These Prelims Practice Questions (PPQs) are based on PMF IAS Daily Current Affairs.
- The daily current affairs are uploaded every day by 8 PM. You can read the Daily Current Affairs from here.
- Subscribers of the “Current Affairs” course can Download Daily Current Affairs in PDF/DOC from here.
[Quiz] Daily Prelims Practice Questions (PPQs) – January 05 2024
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These MCQs are based on PMF IAS Daily Current Affairs. The daily current affairs are uploaded every day by 8 PM. You can read the Daily Current Affairs from here. Subscribers of the “Current Affairs” course can Download Daily Current Affairs in PDF/DOC from here.
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Question 1 of 8
1. Question
Q1. {Geo – EG – Mineral Resources} Consider the following statements about Graphene:
- Graphene is completely impermeable to all gases and liquids.
- Graphene is the first two-dimensional material that human beings ever created.
- Graphene-Based Nanomaterials are used in Electronic Skin Biosensing.
- It is almost fully transparent.
How many of the above statement(s) is/are correct?
Correct
Explanation
Statement 1 is correct
- As the thinnest material, graphene is composed of sp2 hybridized carbon atoms linked to one another in a 2D honeycomb lattice with high electron-density in the aromatic rings, which blocks-off all molecules.
- This phenomenon, in combination with its strong structure (C-C bond energy = 4.9 eV and intrinsic strength = 43 N/m) makes graphene the most impermeable membrane (thinnest membrane that is impermeable).
Statement 2 is correct
- It is extracted from graphite. Graphite is arranged in a 3D crystalline manner, whereas graphene is a 2D crystal, only an atom thick.
- Graphene was discovered in 2004 by Andre Geim and Konstantin Novoselov, who received the Nobel Prize in Physics for this in 2010.
- It is an excellent conductor of electricity and has high thermal conductivity.
Statement 3 is correct
- The development of electronic skin (E-skin) for the imitation of the human sensory system has recently gained a lot of attention due to its potential applications in wearable human health monitoring and care systems, advanced robotics, artificial intelligence, and human–machine interfaces. Electronic skin sensing devices have accelerated due to graphene’s high mechanical flexibility and capacity to achieve unique functionality using a variety of assembly processable processes.
- Graphene’s low density makes it able to stretch to great lengths without getting fractured.
Statement 4 is correct
- Graphene is the thinnest known two-dimensional (2D) material. This thinness is responsible for graphene’s well-known optical transparency. In addition to being transparent to light, its extreme thinness and nonpolar nature also render graphene partially transparent to van der Waals and electrostatic interactions.
Answer: (d) All; Difficulty Level: Medium
Incorrect
Explanation
Statement 1 is correct
- As the thinnest material, graphene is composed of sp2 hybridized carbon atoms linked to one another in a 2D honeycomb lattice with high electron-density in the aromatic rings, which blocks-off all molecules.
- This phenomenon, in combination with its strong structure (C-C bond energy = 4.9 eV and intrinsic strength = 43 N/m) makes graphene the most impermeable membrane (thinnest membrane that is impermeable).
Statement 2 is correct
- It is extracted from graphite. Graphite is arranged in a 3D crystalline manner, whereas graphene is a 2D crystal, only an atom thick.
- Graphene was discovered in 2004 by Andre Geim and Konstantin Novoselov, who received the Nobel Prize in Physics for this in 2010.
- It is an excellent conductor of electricity and has high thermal conductivity.
Statement 3 is correct
- The development of electronic skin (E-skin) for the imitation of the human sensory system has recently gained a lot of attention due to its potential applications in wearable human health monitoring and care systems, advanced robotics, artificial intelligence, and human–machine interfaces. Electronic skin sensing devices have accelerated due to graphene’s high mechanical flexibility and capacity to achieve unique functionality using a variety of assembly processable processes.
- Graphene’s low density makes it able to stretch to great lengths without getting fractured.
Statement 4 is correct
- Graphene is the thinnest known two-dimensional (2D) material. This thinness is responsible for graphene’s well-known optical transparency. In addition to being transparent to light, its extreme thinness and nonpolar nature also render graphene partially transparent to van der Waals and electrostatic interactions.
Answer: (d) All; Difficulty Level: Medium
Unattempted
Explanation
Statement 1 is correct
- As the thinnest material, graphene is composed of sp2 hybridized carbon atoms linked to one another in a 2D honeycomb lattice with high electron-density in the aromatic rings, which blocks-off all molecules.
- This phenomenon, in combination with its strong structure (C-C bond energy = 4.9 eV and intrinsic strength = 43 N/m) makes graphene the most impermeable membrane (thinnest membrane that is impermeable).
Statement 2 is correct
- It is extracted from graphite. Graphite is arranged in a 3D crystalline manner, whereas graphene is a 2D crystal, only an atom thick.
- Graphene was discovered in 2004 by Andre Geim and Konstantin Novoselov, who received the Nobel Prize in Physics for this in 2010.
- It is an excellent conductor of electricity and has high thermal conductivity.
Statement 3 is correct
- The development of electronic skin (E-skin) for the imitation of the human sensory system has recently gained a lot of attention due to its potential applications in wearable human health monitoring and care systems, advanced robotics, artificial intelligence, and human–machine interfaces. Electronic skin sensing devices have accelerated due to graphene’s high mechanical flexibility and capacity to achieve unique functionality using a variety of assembly processable processes.
- Graphene’s low density makes it able to stretch to great lengths without getting fractured.
Statement 4 is correct
- Graphene is the thinnest known two-dimensional (2D) material. This thinness is responsible for graphene’s well-known optical transparency. In addition to being transparent to light, its extreme thinness and nonpolar nature also render graphene partially transparent to van der Waals and electrostatic interactions.
Answer: (d) All; Difficulty Level: Medium
-
Question 2 of 8
2. Question
Q2. {Ministries – Initiatives} Consider the following statements about ERNET India:
- It is a not-for-profit scientific society operating under Ministry of Education.
- It serves as the exclusive domain registrar for educational and research institutions.
Which of the above statement(s) is/are correct?
Correct
Explanation
Statement 1 is incorrect
- ERNET India, or the Education and Research Network is a not-for-profit scientific society operating under Ministry of Electronics and Information Technology (MeitY).
Statement 2 is correct
- It provides advanced networking and communication infrastructure to educational and research institutions nationwide.
- It serves as the exclusive domain registrar for educational and research institutions, managing domain names with extensions such as ‘ac. in,’ ‘edu. in,’ and ‘res.in.’
- ERNET India also helps with web accessibility, campus Wi-Fi, smart classrooms, and internet connections for schools and research centres.
Answer: (b) 2 Only; Difficulty Level: Medium
Incorrect
Explanation
Statement 1 is incorrect
- ERNET India, or the Education and Research Network is a not-for-profit scientific society operating under Ministry of Electronics and Information Technology (MeitY).
Statement 2 is correct
- It provides advanced networking and communication infrastructure to educational and research institutions nationwide.
- It serves as the exclusive domain registrar for educational and research institutions, managing domain names with extensions such as ‘ac. in,’ ‘edu. in,’ and ‘res.in.’
- ERNET India also helps with web accessibility, campus Wi-Fi, smart classrooms, and internet connections for schools and research centres.
Answer: (b) 2 Only; Difficulty Level: Medium
Unattempted
Explanation
Statement 1 is incorrect
- ERNET India, or the Education and Research Network is a not-for-profit scientific society operating under Ministry of Electronics and Information Technology (MeitY).
Statement 2 is correct
- It provides advanced networking and communication infrastructure to educational and research institutions nationwide.
- It serves as the exclusive domain registrar for educational and research institutions, managing domain names with extensions such as ‘ac. in,’ ‘edu. in,’ and ‘res.in.’
- ERNET India also helps with web accessibility, campus Wi-Fi, smart classrooms, and internet connections for schools and research centres.
Answer: (b) 2 Only; Difficulty Level: Medium
-
Question 3 of 8
3. Question
Q3. {Ministry – Initiatives} Consider the following statements about PRERNA scheme:
- Under the scheme, Accredited Social Health Activists hold monthly meetings with the adolescent girls in their area to talk about health issues including menstrual hygiene management.
- It is an Initiative by Ministry of Women and Child Development.
How many of the above statement(s) is/are correct?
Correct
Explanation
Statement 1 is incorrect
- PRERANA: An Experiential Learning program
- The program will run from a Vernacular School, established in 1888, in Vadnagar, Gujarat.
- The curriculum of Prerana School is prepared by IIT Gandhi Nagar.
- Students can register through the portal forth where the registered applicants will go through a selection process, conducted at the school/block level, on designated ‘Prerana Utsav’ day.
- It is a week-long residential program for selected students of class IX to XII.
- A batch of 20 selected students (10 boys and 10 girls) will attend the program, every week from various parts of the country.
Statement 2 is incorrect
- It is launched by Ministry of Education.
Answer: (d) Neither 1 nor 2; Difficulty: Medium
Incorrect
Explanation
Statement 1 is incorrect
- PRERANA: An Experiential Learning program
- The program will run from a Vernacular School, established in 1888, in Vadnagar, Gujarat.
- The curriculum of Prerana School is prepared by IIT Gandhi Nagar.
- Students can register through the portal forth where the registered applicants will go through a selection process, conducted at the school/block level, on designated ‘Prerana Utsav’ day.
- It is a week-long residential program for selected students of class IX to XII.
- A batch of 20 selected students (10 boys and 10 girls) will attend the program, every week from various parts of the country.
Statement 2 is incorrect
- It is launched by Ministry of Education.
Answer: (d) Neither 1 nor 2; Difficulty: Medium
Unattempted
Explanation
Statement 1 is incorrect
- PRERANA: An Experiential Learning program
- The program will run from a Vernacular School, established in 1888, in Vadnagar, Gujarat.
- The curriculum of Prerana School is prepared by IIT Gandhi Nagar.
- Students can register through the portal forth where the registered applicants will go through a selection process, conducted at the school/block level, on designated ‘Prerana Utsav’ day.
- It is a week-long residential program for selected students of class IX to XII.
- A batch of 20 selected students (10 boys and 10 girls) will attend the program, every week from various parts of the country.
Statement 2 is incorrect
- It is launched by Ministry of Education.
Answer: (d) Neither 1 nor 2; Difficulty: Medium
-
Question 4 of 8
4. Question
Q4. {Social Sector – Health Issues} Consider the following statements:
- Gram-negative group of bacteria are Omnipresent in Nature.
- Gram-negative bacteria are generally more resistant to the Antibiotics.
- Pneumonia causing Acinetobacter belongs to the Gram-positive group of bacteria.
- National Programme on Anti-Microbial Resistance (AMR) Containment is being coordinated by National Centre for Disease Control (NCDC).
How many of the above statement(s) is/are correct?
Correct
Explanation
Statement 1 is correct
- Gram-negative group of bacteria are ubiquitous in nature and can be found in soil, water, and various environments.
- It causes a variety of diseases, including lung infections (“pneumonia”), sepsis and blood, wound, or urinary tract infections.
Statement 2 is correct
- Outer Membrane is present in Gram Negative Bacteria.
- Gram-negative bacteria are generally more resistant to the Antibiotics due to the presence of this Membrane.
Statement 3 is incorrect
- Acinetobacter belongs to the Gram-negative group of bacteria.
Statement 4 is correct
- India has given due cognizance to the problem of antimicrobial resistance and to tackle this issue, Government of India launched the “National Programme on AMR Containment” during the 12th five-year plan in the year 2013. The programme is being coordinated by the Centre for Bacterial Diseases and Drug Resistance, NCDC.
Answer: (c) Only three; Difficulty Level: Medium
Incorrect
Explanation
Statement 1 is correct
- Gram-negative group of bacteria are ubiquitous in nature and can be found in soil, water, and various environments.
- It causes a variety of diseases, including lung infections (“pneumonia”), sepsis and blood, wound, or urinary tract infections.
Statement 2 is correct
- Outer Membrane is present in Gram Negative Bacteria.
- Gram-negative bacteria are generally more resistant to the Antibiotics due to the presence of this Membrane.
Statement 3 is incorrect
- Acinetobacter belongs to the Gram-negative group of bacteria.
Statement 4 is correct
- India has given due cognizance to the problem of antimicrobial resistance and to tackle this issue, Government of India launched the “National Programme on AMR Containment” during the 12th five-year plan in the year 2013. The programme is being coordinated by the Centre for Bacterial Diseases and Drug Resistance, NCDC.
Answer: (c) Only three; Difficulty Level: Medium
Unattempted
Explanation
Statement 1 is correct
- Gram-negative group of bacteria are ubiquitous in nature and can be found in soil, water, and various environments.
- It causes a variety of diseases, including lung infections (“pneumonia”), sepsis and blood, wound, or urinary tract infections.
Statement 2 is correct
- Outer Membrane is present in Gram Negative Bacteria.
- Gram-negative bacteria are generally more resistant to the Antibiotics due to the presence of this Membrane.
Statement 3 is incorrect
- Acinetobacter belongs to the Gram-negative group of bacteria.
Statement 4 is correct
- India has given due cognizance to the problem of antimicrobial resistance and to tackle this issue, Government of India launched the “National Programme on AMR Containment” during the 12th five-year plan in the year 2013. The programme is being coordinated by the Centre for Bacterial Diseases and Drug Resistance, NCDC.
Answer: (c) Only three; Difficulty Level: Medium
-
Question 5 of 8
5. Question
Q5. {Envi – Conservation} Hasdeo River, recently seen in news, is a tributary of?
Correct
Explanation
- Hasdeo River is the largest tributary of Mahanadi River. The river flows in the state of Chhattisgarh. It joins Mahanadi River near Shiladehi (Birra). Hasdeo Bango Dam is constructed across this river. The river originates about 910.0 m (2,985.6 feet) above sea level, in a place about 10.0 km from Sonhat in Koriya district.
- The major tributary of Hasdeo River is Gej River.
- The river flows through the Hasdeo Arand forest.
- Called as lungs of Chhattisgarh, Hasdeo Arand is a 1,70,000-hectare forest.
- The forest falls under Korba, Sujapur and Sarguja districts with a sizeable tribal population.
- It is the largest unfragmented forest in Central India consisting of pristine Sal and teak forests.
- It is home to animals like sloth bears, elephants, bird species, and endangered butterfly species.
- The forests are ecologically sensitive and are part of the elephant corridor.
Answer: (b) Mahanadi River; Difficulty Level: Medium
Incorrect
Explanation
- Hasdeo River is the largest tributary of Mahanadi River. The river flows in the state of Chhattisgarh. It joins Mahanadi River near Shiladehi (Birra). Hasdeo Bango Dam is constructed across this river. The river originates about 910.0 m (2,985.6 feet) above sea level, in a place about 10.0 km from Sonhat in Koriya district.
- The major tributary of Hasdeo River is Gej River.
- The river flows through the Hasdeo Arand forest.
- Called as lungs of Chhattisgarh, Hasdeo Arand is a 1,70,000-hectare forest.
- The forest falls under Korba, Sujapur and Sarguja districts with a sizeable tribal population.
- It is the largest unfragmented forest in Central India consisting of pristine Sal and teak forests.
- It is home to animals like sloth bears, elephants, bird species, and endangered butterfly species.
- The forests are ecologically sensitive and are part of the elephant corridor.
Answer: (b) Mahanadi River; Difficulty Level: Medium
Unattempted
Explanation
- Hasdeo River is the largest tributary of Mahanadi River. The river flows in the state of Chhattisgarh. It joins Mahanadi River near Shiladehi (Birra). Hasdeo Bango Dam is constructed across this river. The river originates about 910.0 m (2,985.6 feet) above sea level, in a place about 10.0 km from Sonhat in Koriya district.
- The major tributary of Hasdeo River is Gej River.
- The river flows through the Hasdeo Arand forest.
- Called as lungs of Chhattisgarh, Hasdeo Arand is a 1,70,000-hectare forest.
- The forest falls under Korba, Sujapur and Sarguja districts with a sizeable tribal population.
- It is the largest unfragmented forest in Central India consisting of pristine Sal and teak forests.
- It is home to animals like sloth bears, elephants, bird species, and endangered butterfly species.
- The forests are ecologically sensitive and are part of the elephant corridor.
Answer: (b) Mahanadi River; Difficulty Level: Medium
-
Question 6 of 8
6. Question
Q6. {Envi – Conservation} Consider the following statements:
- Wetland City Accreditation is a voluntary system that provides an opportunity for cities that value their natural wetlands to gain international recognition.
- The Amrit Dharohar is an initiative of the MoEF&CC that aims to achieve similar goals by promoting unique conservation values of Ramsar Sites.
- No Indian city have been formally accredited in the Wetland City Accreditation.
Which of the above statement(s) is/are incorrect?
Correct
Explanation
Statement 1 is incorrect
- Wetland City Accreditation (WCA) aims to promote the conservation and wise use of urban and peri–urban wetlands, as well as sustainable socio-economic benefits for local populations.
- The Accreditation seeks to encourage cities that are close to and dependent on wetlands, primarily Wetlands of International Importance.
- The Ramsar Convention during COP12 held in the year 2015 approved this voluntary WCA system that recognizes cities that have taken exceptional steps to safeguard their urban wetlands.
- This voluntary scheme provides an opportunity for cities that value their natural or human-made wetlands to gain international recognition.
Statement 2 is correct
- The Amrit Dharohar is an initiative of the MoEF&CC that aims to achieve similar goals by promoting unique conservation values of Ramsar Sites.
- This scheme was announced in the 2023-24 budget for a period of 3 years. The scheme, identifying the importance of the wetlands, aims to promote their optimal use. Under this scheme, the communities will be at the centre stage with regard to wetland protection.
Statement 3 is correct
- No Indian city have been formally accredited in the Wetland City Accreditation.
- Recently Ministry of Environment, Forest, and Climate Change (MoEF&CC) have selected Indore, Bhopal and Udaipur to get accredited formally in Wetland City Accreditation.
Answer: (a) Only one; Difficulty Level: Medium
Incorrect
Explanation
Statement 1 is incorrect
- Wetland City Accreditation (WCA) aims to promote the conservation and wise use of urban and peri–urban wetlands, as well as sustainable socio-economic benefits for local populations.
- The Accreditation seeks to encourage cities that are close to and dependent on wetlands, primarily Wetlands of International Importance.
- The Ramsar Convention during COP12 held in the year 2015 approved this voluntary WCA system that recognizes cities that have taken exceptional steps to safeguard their urban wetlands.
- This voluntary scheme provides an opportunity for cities that value their natural or human-made wetlands to gain international recognition.
Statement 2 is correct
- The Amrit Dharohar is an initiative of the MoEF&CC that aims to achieve similar goals by promoting unique conservation values of Ramsar Sites.
- This scheme was announced in the 2023-24 budget for a period of 3 years. The scheme, identifying the importance of the wetlands, aims to promote their optimal use. Under this scheme, the communities will be at the centre stage with regard to wetland protection.
Statement 3 is correct
- No Indian city have been formally accredited in the Wetland City Accreditation.
- Recently Ministry of Environment, Forest, and Climate Change (MoEF&CC) have selected Indore, Bhopal and Udaipur to get accredited formally in Wetland City Accreditation.
Answer: (a) Only one; Difficulty Level: Medium
Unattempted
Explanation
Statement 1 is incorrect
- Wetland City Accreditation (WCA) aims to promote the conservation and wise use of urban and peri–urban wetlands, as well as sustainable socio-economic benefits for local populations.
- The Accreditation seeks to encourage cities that are close to and dependent on wetlands, primarily Wetlands of International Importance.
- The Ramsar Convention during COP12 held in the year 2015 approved this voluntary WCA system that recognizes cities that have taken exceptional steps to safeguard their urban wetlands.
- This voluntary scheme provides an opportunity for cities that value their natural or human-made wetlands to gain international recognition.
Statement 2 is correct
- The Amrit Dharohar is an initiative of the MoEF&CC that aims to achieve similar goals by promoting unique conservation values of Ramsar Sites.
- This scheme was announced in the 2023-24 budget for a period of 3 years. The scheme, identifying the importance of the wetlands, aims to promote their optimal use. Under this scheme, the communities will be at the centre stage with regard to wetland protection.
Statement 3 is correct
- No Indian city have been formally accredited in the Wetland City Accreditation.
- Recently Ministry of Environment, Forest, and Climate Change (MoEF&CC) have selected Indore, Bhopal and Udaipur to get accredited formally in Wetland City Accreditation.
Answer: (a) Only one; Difficulty Level: Medium
-
Question 7 of 8
7. Question
Q7. {A&C – Art} Consider the following statements about Thalaiyatti and Uruttu Dolls:
- It is a traditional Indian doll modelled on the human form that is predominantly made in Calicut, Kerala.
- The art of making these dolls was introduced by Maratha rule in the early 19th Century.
- It was granted the Geographical Indication (GI) tag in 2009.
How many of the above statement(s) is/are Correct?
Correct
Explanation
Statement 1 is incorrect
- Thalaiyatti and Uruttu Dolls are traditional Indian dolls modelled on the human form that is predominantly made in Thanjavur of Tamil Nadu.
- At present, all the dolls have a lightweight body which are made of tapioca flour, papier mache and plaster of Paris cooked and kneaded to the consistency of roti dough.
- Papier mache is a material made from paper, water, glue and other substances that hardens as it dries.
- Earlier the dolls were heavier as they were made of terracotta.
Statement 2 is correct
- The art of making these dolls was introduced by Maratha ruler Raja Serfoji in the early 19th Century.
Statement 3 is correct
- Thalaiyatti and Uruttu Dolls are also known as Thanjavur dolls which received Geographical Indication (GI) tag in 2009.
- These dolls reflect a unique combination of modern aesthetics and ingenious engineering.
Answer: (b) Only two; Difficulty Level: Medium
Incorrect
Explanation
Statement 1 is incorrect
- Thalaiyatti and Uruttu Dolls are traditional Indian dolls modelled on the human form that is predominantly made in Thanjavur of Tamil Nadu.
- At present, all the dolls have a lightweight body which are made of tapioca flour, papier mache and plaster of Paris cooked and kneaded to the consistency of roti dough.
- Papier mache is a material made from paper, water, glue and other substances that hardens as it dries.
- Earlier the dolls were heavier as they were made of terracotta.
Statement 2 is correct
- The art of making these dolls was introduced by Maratha ruler Raja Serfoji in the early 19th Century.
Statement 3 is correct
- Thalaiyatti and Uruttu Dolls are also known as Thanjavur dolls which received Geographical Indication (GI) tag in 2009.
- These dolls reflect a unique combination of modern aesthetics and ingenious engineering.
Answer: (b) Only two; Difficulty Level: Medium
Unattempted
Explanation
Statement 1 is incorrect
- Thalaiyatti and Uruttu Dolls are traditional Indian dolls modelled on the human form that is predominantly made in Thanjavur of Tamil Nadu.
- At present, all the dolls have a lightweight body which are made of tapioca flour, papier mache and plaster of Paris cooked and kneaded to the consistency of roti dough.
- Papier mache is a material made from paper, water, glue and other substances that hardens as it dries.
- Earlier the dolls were heavier as they were made of terracotta.
Statement 2 is correct
- The art of making these dolls was introduced by Maratha ruler Raja Serfoji in the early 19th Century.
Statement 3 is correct
- Thalaiyatti and Uruttu Dolls are also known as Thanjavur dolls which received Geographical Indication (GI) tag in 2009.
- These dolls reflect a unique combination of modern aesthetics and ingenious engineering.
Answer: (b) Only two; Difficulty Level: Medium
-
Question 8 of 8
8. Question
Q8. {S&T – Space} Consider the following statements with respect to Square Kilometre Array Observatory (SKAO):
- It is a single telescope installed in radio-quiet region of Australia.
- SKAO will observe and map galaxies at the edge of the observable universe.
- Radio Telescopes can reveal areas of space that may be obscured by cosmic dust.
- India is not a party.
How many of the above statement(s) is/are correct?
Correct
Explanation
Statement 1 is incorrect
- The Square Kilometre Array (SKA) is an international project to build the world’s largest radio telescope.
- The SKAO is not a single telescope but an array of thousands of antennas, to be installed in remote radio-quiet locations in South Africa and Australia.
- It will operate as one large unit meant to observe and study celestial phenomena.
Statement 2 is correct
- The SKAO is a next-generation radio astronomy-driven Big Data facility that will revolutionise our understanding of the Universe and the laws of fundamental physics.
- Its Mission is to build and operate cutting-edge radio telescopes to transform our understanding of the Universe and deliver benefits to society through global collaboration and innovation.
Statement 3 is correct
- Unlike optical telescopes, radio telescopes can detect invisible gas and, therefore, they can reveal areas of space that may be obscured by cosmic dust.
Statement 4 is incorrect
- Countries must sign, and ratify, the SKAO convention to formally become members.
- India, through the Pune-based National Centre for Radio Astrophysics (NCRA) and some other institutions, has been involved in the development of SKA since its inception in the 1990s.
- India’s main contribution to the SKA is in the development, and operation, of the Telescope Manager element, the “neural network” or the software that will make the telescope work.
Answer: (b) Only two ; Difficulty: Medium
Incorrect
Explanation
Statement 1 is incorrect
- The Square Kilometre Array (SKA) is an international project to build the world’s largest radio telescope.
- The SKAO is not a single telescope but an array of thousands of antennas, to be installed in remote radio-quiet locations in South Africa and Australia.
- It will operate as one large unit meant to observe and study celestial phenomena.
Statement 2 is correct
- The SKAO is a next-generation radio astronomy-driven Big Data facility that will revolutionise our understanding of the Universe and the laws of fundamental physics.
- Its Mission is to build and operate cutting-edge radio telescopes to transform our understanding of the Universe and deliver benefits to society through global collaboration and innovation.
Statement 3 is correct
- Unlike optical telescopes, radio telescopes can detect invisible gas and, therefore, they can reveal areas of space that may be obscured by cosmic dust.
Statement 4 is incorrect
- Countries must sign, and ratify, the SKAO convention to formally become members.
- India, through the Pune-based National Centre for Radio Astrophysics (NCRA) and some other institutions, has been involved in the development of SKA since its inception in the 1990s.
- India’s main contribution to the SKA is in the development, and operation, of the Telescope Manager element, the “neural network” or the software that will make the telescope work.
Answer: (b) Only two ; Difficulty: Medium
Unattempted
Explanation
Statement 1 is incorrect
- The Square Kilometre Array (SKA) is an international project to build the world’s largest radio telescope.
- The SKAO is not a single telescope but an array of thousands of antennas, to be installed in remote radio-quiet locations in South Africa and Australia.
- It will operate as one large unit meant to observe and study celestial phenomena.
Statement 2 is correct
- The SKAO is a next-generation radio astronomy-driven Big Data facility that will revolutionise our understanding of the Universe and the laws of fundamental physics.
- Its Mission is to build and operate cutting-edge radio telescopes to transform our understanding of the Universe and deliver benefits to society through global collaboration and innovation.
Statement 3 is correct
- Unlike optical telescopes, radio telescopes can detect invisible gas and, therefore, they can reveal areas of space that may be obscured by cosmic dust.
Statement 4 is incorrect
- Countries must sign, and ratify, the SKAO convention to formally become members.
- India, through the Pune-based National Centre for Radio Astrophysics (NCRA) and some other institutions, has been involved in the development of SKA since its inception in the 1990s.
- India’s main contribution to the SKA is in the development, and operation, of the Telescope Manager element, the “neural network” or the software that will make the telescope work.
Answer: (b) Only two ; Difficulty: Medium
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