Daily UPSC Prelims Current Affairs – July 16, 2022 [Mock Test]
July 16, 2022 July 16, 2022
1. ‘Black widow binary system’ was in news of late. It pertains to which of the following?
[A] Space
[B] Artificial Intelligence
[C] Spiders
[D] None of the above
Show Answer
Correct Answer: A [Space]
Notes:- Black widow binary is a unique system that consists of a pulsar (rapidly spinning neutron star) that is circling and slowly consuming a smaller companion star. The system derives its name from the “black widow” spiders, in which the female eats the male after mating.
- This system has the shortest orbital period yet identified. The system has a pulsar and a companion star that circle each other every 62 minutes.
- The system has been named ZTF J1406+1222.
- Another thing that makes the system unique apart from the short orbital period is the fact that it seems to host a third far-flung star that orbits the other two every 10,000 years.
2. Which of the following pairs of silks and respective silkworms are matched correctly?
- Muga – Antheraea assamensis
- Eri – Samia ricini
- Tasar – Antheraea mylitta
- Mulberry – Bombyx mori
Choose the correct answer using the codes given below:
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:- There are four major types of silk of commercial importance, obtained from different species of silkworms. These are Mulberry, Tasar, Muga and Eri. Except for mulberry, other non-mulberry varieties of silks are wild silks, known as vanya silks.
- Muga silk is one of the rarest silks produced in the world. This silk is produced by the larva of a silkworm named Assam silkmoth (Antheraea assamensis).
- Eri silk, also known as Endi or Errandi silk is processed from the open-ended cocoons of the domesticated silkworms known as Samia ricini and Philosamia ricini, which are native to Assam. Since the silk is obtained without killing the silkworm, it is also referred to as Ahimsa silk or peace silk.
- Tasar silk is also known as Kosa silk in Sanskrit. It is generated from the larvae of the silkworm Antheraea mylitta that live in wild forests.
- Mulberry silk is produced by the domesticated silkworm called Bombyx mori.
3. Which of the following projects are located on Krishna River?
- Srisailam Left Bank Canal Project
- Mahatma Gandhi Kalwakurthy Lift Irrigation Project
- Nettempadu Scheme Project
Choose the correct answer using the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:- Alimineti Madhava Reddy Projectearlier known as Srisailam Left Bank Canal is an irrigation project located in Nalgonda district in Telangana. It is located on River Musi, a tributary of Krishna River.
- Mahatma Gandhi Kalwakurthy lift irrigation scheme(MGKLIS) is a lift irrigation project on River Krishna located in Mahbubnagar district in Telangana.
- The Nettempadu Scheme envisages creation of irrigation potential and drinking water facilities for drought prone areas of Mahabubnagar District, by lifting water from Krishna River from the foreshore of Priyadarshini Jurala Project.
