Current Affairs Questions
Science & Technology:
Multi-Stage Memetic Binary Tree Anomaly Identifier (MSMBTAI)
Consider the following statements:
- Recently, Indian Astronomers, utilising an Artificial Intelligence-based algorithm, have devised a new approach for identifying potentially habitable planets.
- The AI-based method, named Multi-Stage Memetic Binary Tree Anomaly Identifier (MSMBTAI), is based on a novel multi-stage memetic algorithm (MSMA).
- The method is based on the postulate that Earth - being the only habitable planet among thousands of planets - is an anomaly, with the possibility of existence of few other anomalies among thousands of data points.
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 Scientists
Consider the following statements:
- Recently, Indian scientists, along with international collaborators from Brazil and France, have derived the accurate value of Pluto’s atmospheric pressure at its surface.
- The atmospheric pressure of Pluto was found to be 8.23 μbar, which is over 80,000 times less than the atmospheric pressure at mean sea level on Earth.
- In astronomy, an occultation happens when a celestial object gets hidden from the view of the observer due to another celestial object passing in between them.
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
Giant Metrewave Radio Telescope (GMRT)
Consider the following statements:
- Giant Metrewave Radio Telescope (GMRT) consists of 30 fully steerable gigantic parabolic dishes of 45m diameter each, spread over distances of up to 25 km.
- The metre wavelength part of the radio spectrum has been particularly chosen for study with GMRT because man-made radio interference is considerably lower in this part of the spectrum in India.
- GMRT is located in Hyderabad.
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 Organization (ISRO)
Consider the following statements:
- Indian Space Research Organization (ISRO) successfully launched three satellites – earth observation satellite EOS-04 and two small satellites (INSPIRESat-1 and INS-2TD) - onboard the Polar Satellite Launch Vehicle PSLV-C52.
- It was the first launch of ISRO in 2022, and the 54th flight of PSLV.
- It would replace the RISAT-2
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
Multi-slit Solar Explorer (MUSE)
Consider the following statements:
- Recently, NASA selected two science missions - the Multi-slit Solar Explorer (MUSE) and HelioSwarm - to help improve our understanding of the dynamics of the Sun, the Sun-Earth connection, and the constantly changing space environment.
- The primary goal of the Multi-slit Solar Explorer (MUSE) mission is to investigate the causes of coronal heating and instability, such as flares and coronal mass ejections, and gain insight into the basic plasma properties of the corona.
- The HelioSwarm mission will capture the first multiscale in-space measurements of fluctuations in the magnetic field and motions of the solar wind known as solar wind turbulence.
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
Chang’e 5 Lunar Mission
Consider the following statements:
- Recently, China’s Chang’e 5 lunar lander found the first-ever on-site evidence of water on the surface of the moon, lending new evidence to its dryness.
- It was the lunar rocks that contributed the most to humidity of lunar soil.
- Chang’e 5 lunar mission is the Chinese National Space Administration’s mission that sent a robotic spacecraft to the moon to collect samples and return them to the Earth for scientific study.
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
Deoxyribonucleic Acid (DNA)
Consider the following statements:
- Recently, a team of researchers developed the world’s tiniest nanoantenna made of Deoxyribonucleic acid (DNA) and polyethylene glycol (PEG) to study changes in the structure of protein molecules.
- It is formed when a fluorescent molecule is first attached to the DNA, and then this fluorescent nanoantenna is attached to a biological nanomachine, such as an enzyme.
- The nanoantenna works like a one-way radio that can only receive radio waves.
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
Nuclear Fusion
Consider the following statements:
- Nuclear fusion is defined as the combining of several small nuclei into one large nucleus with the subsequent release of huge amounts of energy.
- Nuclear fusion is employed in the nuclear reactors.
- Nuclear fission refers to the process of breaking up heavy nuclei into smaller fragments which is accompanied by release of vast amount of energy.
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
SSLV-D1 Micro SAT
Consider the following statements:
- India’s Small Satellite Launch Vehicle (SSLV) named “SSLV-D1 Micro SAT” is scheduled to be launched in April 2022.
- SSLV has three solid propulsion stages and a liquid velocity trimming module as a terminal stage.
- SSLV has a capability to launch up to 1000 kg satellite mass into 500 km Low Earth Orbit (LEO)
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
Low Earth Orbit
Consider the following statements:
- Low Earth Orbit (LEO) encompasses Earth-centred orbits with an altitude of 2,000 km or less.
- It is considered the area in Earth orbit near enough to Earth for convenient transportation, communication, observation and resupply.
- This is the area where the International Space Station and many other satellites currently orbit the 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
Multi-Stage Memetic Binary Tree Anomaly Identifier (MSMBTAI)
Consider the following statements:
- Recently, Indian Astronomers, utilising an Artificial Intelligence-based algorithm, have devised a new approach for identifying potentially habitable planets.
- The AI-based method, named Multi-Stage Memetic Binary Tree Anomaly Identifier (MSMBTAI), is based on a novel multi-stage memetic algorithm (MSMA).
- The method is based on the postulate that Earth - being the only habitable planet among thousands of planets - is an anomaly, with the possibility of existence of few other anomalies among thousands of data points.
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 Scientists
Consider the following statements:
- Recently, Indian scientists, along with international collaborators from Brazil and France, have derived the accurate value of Pluto’s atmospheric pressure at its surface.
- The atmospheric pressure of Pluto was found to be 8.23 μbar, which is over 80,000 times less than the atmospheric pressure at mean sea level on Earth.
- In astronomy, an occultation happens when a celestial object gets hidden from the view of the observer due to another celestial object passing in between them.
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
|
|
Giant Metrewave Radio Telescope (GMRT)
Consider the following statements:
- Giant Metrewave Radio Telescope (GMRT) consists of 30 fully steerable gigantic parabolic dishes of 45m diameter each, spread over distances of up to 25 km.
- The metre wavelength part of the radio spectrum has been particularly chosen for study with GMRT because man-made radio interference is considerably lower in this part of the spectrum in India.
- GMRT is located in Hyderabad.
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 Organization (ISRO)
Consider the following statements:
- Indian Space Research Organization (ISRO) successfully launched three satellites – earth observation satellite EOS-04 and two small satellites (INSPIRESat-1 and INS-2TD) - onboard the Polar Satellite Launch Vehicle PSLV-C52.
- It was the first launch of ISRO in 2022, and the 54th flight of PSLV.
- It would replace the RISAT-2
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
|
|
Multi-slit Solar Explorer (MUSE)
Consider the following statements:
- Recently, NASA selected two science missions - the Multi-slit Solar Explorer (MUSE) and HelioSwarm - to help improve our understanding of the dynamics of the Sun, the Sun-Earth connection, and the constantly changing space environment.
- The primary goal of the Multi-slit Solar Explorer (MUSE) mission is to investigate the causes of coronal heating and instability, such as flares and coronal mass ejections, and gain insight into the basic plasma properties of the corona.
- The HelioSwarm mission will capture the first multiscale in-space measurements of fluctuations in the magnetic field and motions of the solar wind known as solar wind turbulence.
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
|
|
Chang’e 5 Lunar Mission
Consider the following statements:
- Recently, China’s Chang’e 5 lunar lander found the first-ever on-site evidence of water on the surface of the moon, lending new evidence to its dryness.
- It was the lunar rocks that contributed the most to humidity of lunar soil.
- Chang’e 5 lunar mission is the Chinese National Space Administration’s mission that sent a robotic spacecraft to the moon to collect samples and return them to the Earth for scientific study.
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
|
|
Deoxyribonucleic Acid (DNA)
Consider the following statements:
- Recently, a team of researchers developed the world’s tiniest nanoantenna made of Deoxyribonucleic acid (DNA) and polyethylene glycol (PEG) to study changes in the structure of protein molecules.
- It is formed when a fluorescent molecule is first attached to the DNA, and then this fluorescent nanoantenna is attached to a biological nanomachine, such as an enzyme.
- The nanoantenna works like a one-way radio that can only receive radio waves.
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
|
|
Nuclear Fusion
Consider the following statements:
- Nuclear fusion is defined as the combining of several small nuclei into one large nucleus with the subsequent release of huge amounts of energy.
- Nuclear fusion is employed in the nuclear reactors.
- Nuclear fission refers to the process of breaking up heavy nuclei into smaller fragments which is accompanied by release of vast amount of energy.
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
|
|
SSLV-D1 Micro SAT
Consider the following statements:
- India’s Small Satellite Launch Vehicle (SSLV) named “SSLV-D1 Micro SAT” is scheduled to be launched in April 2022.
- SSLV has three solid propulsion stages and a liquid velocity trimming module as a terminal stage.
- SSLV has a capability to launch up to 1000 kg satellite mass into 500 km Low Earth Orbit (LEO)
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
|
|
Low Earth Orbit
Consider the following statements:
- Low Earth Orbit (LEO) encompasses Earth-centred orbits with an altitude of 2,000 km or less.
- It is considered the area in Earth orbit near enough to Earth for convenient transportation, communication, observation and resupply.
- This is the area where the International Space Station and many other satellites currently orbit the 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
|
|
