Daily UPSC Prelims Current Affairs – September 21, 2022 [Mock Test]
September 21, 2022 September 21, 2022
1. Consider the following statements:
- The Jiribam-Imphal railway line is India’s tallest pier rail bridge over Brahmaputra River.
- Ejei is a tributary of the Irang, which eventually joins the Barak River.
Which of the statements given above is/are correct?
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: B [Only 2]
Notes:- The Jiribam-Imphal railway line is India’s tallest pier rail bridge in Tamenglong district over Barak river.
- Ejei – also spelt ‘Ijei’ and ‘Ijai’ – is one of the main tributaries of the Irang, which flows into the Naga-inhabited Senapati, Tamenglong and Noney districts of Manipur. It eventually joins the Barak river in the south.
- The massive landslide occurred due to incessant rains which caused damage to the Tupul station building of the ongoing Jiribam – Imphal new line project.
2. Recently tested Autonomous Flying Wing Technology Demonstrator refers to which of the following?
[A] Change the motion of an asteroid in space
[B] Unmanned aerial vehicle
[C] Aircraft carrier
[D] None of the above
Show Answer
Correct Answer: B [Unmanned aerial vehicle]
Notes:- Recently, Defence Research and Development Organization (DRDO) has carried out the maiden test flight of a new unmanned Aerial Vehicle, an Autonomous Flying Wing Technology Demonstrator.
- It is a precursor to an autonomous stealthy UCAV which is being developed by the DRDO’s Aeronautical Development Establishment (ADE), primarily for the Indian Air Force.
- The UCAV will be capable of launching missiles and precision-guided munitions.
- The vehicle is powered by a small turbofan engine.
- UAVs presently being used: Ghatak (India), Reaper (USA), Predator (USA).
3. With reference to the Higgs Boson, consider the following statements:
- It is also popularly referred as “the God Particle”.
- It has a short lifespan.
- It is positively charged.
- It is the only elementary particle with no spin.
Which of the statements given above are correct?
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1, 2 & 4
[D] Only 1, 3 & 4
Show Answer
Correct Answer: C [Only 1, 2 & 4]
Notes:- The Higgs boson is the fundamental particle associated with the Higgs field, a field that gives mass to other fundamental particles such as electrons and quarks.
- It is also popularly referred as “the God Particle”.
- The Higgs boson has a mass of 125 billion electron volts, meaning it is 130 times more massive than a proton.
- It has a short lifespan. Once it is created during the particle collisions, it sticks around for merely less than a trillionth of a billionth of a second or, more precisely, 1.6 x 10-22 seconds.
- The Higgs boson is chargeless.
- Higgs boson, has an intrinsic angular momentum, or spin, of 0. The Higgs Boson is the only elementary particle with no spin.
