Current Affairs Questions
Science & Technology:
Sodium-ion (Na+) Battery
Consider the following statements:
- A sodium-ion (Na+) battery is a kind of rechargeable battery which primarily relies on the movement of sodium ions between the positive and negative electrodes to work.
- Its working principle and cell construction are different from those of lithium-ion batteries.
Which of the above statement(s) is/are true?
A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Nanocomposites
Consider the following statements:
- Recently, a team of Indian scientists has developed a nanocomposite using lignin and nanoparticles of cadmium sulfide called L@CdS QDs (quantum dots).
- Lignin is a complex, woody biopolymer that gives mechanical support to plants and helps transport water and nutrients.
- Lignin is rich in carbon, polyphenols, and antioxidants, besides having antimicrobial properties.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Multispectral Maps Of Mars
Consider the following statements:
- Recently, National Aeronautics and Space Administration (NASA) released the first portions of the multispectral maps of the surface of Mars.
- The first batch of the map comprises 20000 images, with each image representing a strip of land 540 km long and 10 km wide.
- The multicoloured map covers 86 percent of the Martian surface. NASA will release the map in its entirety over the next six months in batches.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Geospatial Self Certification Portal
Consider the following statements:
- The Department of Science and Technology (DST), Government of India, had released the new Geospatial Data Guidelines in April, 2022.
- Recently, DST launched the Self Certification Portal for conveying adherence to provisions of the Geospatial Guidelines.
- The portal has been developed by the Department of Science and Technology in collaboration with National Informatics Centre (NIC).
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Ultra-Thin Heteroprotein Films
Consider the following statements:
- Recently, Indian scientists developed ultra-thin heteroprotein films which can pave the way for expanding applications of thin films in biomedical and food packaging industries.
- The ultrathin monolayer protein films consist of two globular proteins: bovine serum albumin (BSA) and lysozyme (Lys).
- The scientists used the Langmuir-Blodgett (LB) technique which gives the films thickness in the order of nanometer.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
VL-SRSAM
Consider the following statements:
- Recently, the Vertical Launch Short Range Surface to Air Missile (VL-SRSAM) was successfully flight-tested by Defence Research & Development Organisation (DRDO) and the Indian Navy.
- It is meant for neutralising various aerial threats at close ranges including sea-skimming targets.
- The VL-SRSAM system has been designed to strike at the high-speed airborne targets at the range of 200km to 300km and at an altitude of around 15km.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Indian Space Research Organisation (ISRO)
Consider the following statements:
- Recently, the Indian Space Research Organisation (ISRO) successfully launched three Singaporean satellites in a commercial mission of the New Space India Limited (NSIL).
- This was the fourth launch of the year by ISRO.
- DS-EO is an electro-optic, earth-observation satellite capable of providing full-colour images for land classification and disaster-relief operations.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
International Liquid-Mirror Telescope (ILMT)
Consider the following statements:
- Recently, the International Liquid-Mirror Telescope (ILMT) was commissioned at the Devasthal Observatory campus.
- The telescope employs a 4-meter-diameter rotating mirror made up of a thin film of liquid mercury to collect and focus light.
- The Aryabhatta Research Institute of Observational Sciences (ARIES) is located in Shimla, Himachal Pradesh.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Rocket Booster
Consider the following statements:
- Recently, the Indian Space Research Organisation (ISRO) successfully carried out the static test of the HS200 solid rocket booster.
- The HS200 is the human-rated version of the S200 rocket booster of the Geosynchronous Satellite Launch Vehicle MkIII (GSLV Mk III), also known as LVM3.
- It was designed and developed at the Satish Dhawan Space Centre (SDSC) in Kerala's Thiruvananthapuram.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Event Horizon Telescope (EHT)
Consider the following statements:
- Recently, scientists from the Event Horizon Telescope (EHT) facility revealed the first image of the black hole named Sagittarius A* (SgrA*) at the centre of our galaxy, i.e., the Milky Way.
- It is a supermassive black hole at the centre of our galaxy, located near the border of the constellations Sagittarius and Scorpius.
- SgrA* possesses 1 million times the mass of our sun and is located about 26,000 light-years from Earth.
Which of the above statement(s) is/are true?
A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above
Sodium-ion (Na+) Battery
Consider the following statements:
- A sodium-ion (Na+) battery is a kind of rechargeable battery which primarily relies on the movement of sodium ions between the positive and negative electrodes to work.
- Its working principle and cell construction are different from those of lithium-ion batteries.
Which of the above statement(s) is/are true?
| A |
1 only
|
|
| B |
2 only
|
|
| C |
Both 1 and 2
|
|
| D |
Neither 1 nor 2
|
|
Nanocomposites
Consider the following statements:
- Recently, a team of Indian scientists has developed a nanocomposite using lignin and nanoparticles of cadmium sulfide called L@CdS QDs (quantum dots).
- Lignin is a complex, woody biopolymer that gives mechanical support to plants and helps transport water and nutrients.
- Lignin is rich in carbon, polyphenols, and antioxidants, besides having antimicrobial properties.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Multispectral Maps Of Mars
Consider the following statements:
- Recently, National Aeronautics and Space Administration (NASA) released the first portions of the multispectral maps of the surface of Mars.
- The first batch of the map comprises 20000 images, with each image representing a strip of land 540 km long and 10 km wide.
- The multicoloured map covers 86 percent of the Martian surface. NASA will release the map in its entirety over the next six months in batches.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Geospatial Self Certification Portal
Consider the following statements:
- The Department of Science and Technology (DST), Government of India, had released the new Geospatial Data Guidelines in April, 2022.
- Recently, DST launched the Self Certification Portal for conveying adherence to provisions of the Geospatial Guidelines.
- The portal has been developed by the Department of Science and Technology in collaboration with National Informatics Centre (NIC).
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Ultra-Thin Heteroprotein Films
Consider the following statements:
- Recently, Indian scientists developed ultra-thin heteroprotein films which can pave the way for expanding applications of thin films in biomedical and food packaging industries.
- The ultrathin monolayer protein films consist of two globular proteins: bovine serum albumin (BSA) and lysozyme (Lys).
- The scientists used the Langmuir-Blodgett (LB) technique which gives the films thickness in the order of nanometer.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
VL-SRSAM
Consider the following statements:
- Recently, the Vertical Launch Short Range Surface to Air Missile (VL-SRSAM) was successfully flight-tested by Defence Research & Development Organisation (DRDO) and the Indian Navy.
- It is meant for neutralising various aerial threats at close ranges including sea-skimming targets.
- The VL-SRSAM system has been designed to strike at the high-speed airborne targets at the range of 200km to 300km and at an altitude of around 15km.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Indian Space Research Organisation (ISRO)
Consider the following statements:
- Recently, the Indian Space Research Organisation (ISRO) successfully launched three Singaporean satellites in a commercial mission of the New Space India Limited (NSIL).
- This was the fourth launch of the year by ISRO.
- DS-EO is an electro-optic, earth-observation satellite capable of providing full-colour images for land classification and disaster-relief operations.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
International Liquid-Mirror Telescope (ILMT)
Consider the following statements:
- Recently, the International Liquid-Mirror Telescope (ILMT) was commissioned at the Devasthal Observatory campus.
- The telescope employs a 4-meter-diameter rotating mirror made up of a thin film of liquid mercury to collect and focus light.
- The Aryabhatta Research Institute of Observational Sciences (ARIES) is located in Shimla, Himachal Pradesh.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Rocket Booster
Consider the following statements:
- Recently, the Indian Space Research Organisation (ISRO) successfully carried out the static test of the HS200 solid rocket booster.
- The HS200 is the human-rated version of the S200 rocket booster of the Geosynchronous Satellite Launch Vehicle MkIII (GSLV Mk III), also known as LVM3.
- It was designed and developed at the Satish Dhawan Space Centre (SDSC) in Kerala's Thiruvananthapuram.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
Event Horizon Telescope (EHT)
Consider the following statements:
- Recently, scientists from the Event Horizon Telescope (EHT) facility revealed the first image of the black hole named Sagittarius A* (SgrA*) at the centre of our galaxy, i.e., the Milky Way.
- It is a supermassive black hole at the centre of our galaxy, located near the border of the constellations Sagittarius and Scorpius.
- SgrA* possesses 1 million times the mass of our sun and is located about 26,000 light-years from Earth.
Which of the above statement(s) is/are true?
| A |
1 and 2
|
|
| B |
2 and 3
|
|
| C |
1 and 3
|
|
| D |
All of the above
|
|
