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Daily UPSC Prelims Current Affairs – February 11, 2023 [Mock Test]
Daily UPSC Prelims Current Affairs – February 11, 2023 [Mock Test]
![Daily UPSC Prelims Current Affairs – February 11, 2023 [Mock Test]](https://i0.wp.com/www.gktoday.in/wp-content/uploads/2023/02/unnamed-1.png?fit=300%2C200&ssl=1)
1. Consider the following pairs regarding trilateral defence exercises and participating countries:
| Exercise | Participating Countries |
| Dosti | India, Bangladesh, Sri Lanka |
| IMT TRILAT | India, Mozambique, Tanzania |
| SITMEX | India, Singapore, Thailand |
How many of the above pairs are correctly matched?
[A] Only One
[B] Only Two
[C] Only Three
[D] None of them
Show Answer
Correct Answer: B [Only Two]
Notes:
Dosti involves India, Maldives, and Sri Lanka, not Bangladesh; incorrect. IMT TRILAT involves India, Mozambique, and Tanzania; correct. SITMEX involves India, Singapore, and Thailand; correct.
2. Who among the following has/have been listed among the 500 most influential Muslims globally?
- Mirwaiz Umar Farooq
- Ayatollah Khamenei
- Recep Tayyip Erdogan
- Imran Khan
Choose the correct answer using the codes given below:
[A] Only 4
[B] Only 2 & 3
[C] Only 1, 2 & 3
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:- Hurriyat chairman and Kashmir Valley’s chief cleric Mirwaiz Umar Farooq has been listed among the 500 most influential Muslims globally by the Jordan-based The Royal Islamic Strategic Studies Centre.
- Others on the list are King Salman of Saudi Arabia, Ayatollah Khamenei of Iran, former Prime Minister of Pakistan Imran Khan, Turkey’s President Recep Tayyip Erdogan and King Abdullah of Jordan.
3. Consider the following statements:
- A lab-grown diamond is chemically, physically, and optically the same as the natural diamond.
- Chemical Vapour Deposition is the only process to develop a lab-grown diamond.
- CVD mimic the pressure and temperatures found within the earth where natural diamonds are formed.
Which of the statements given above is/are correct?
[A] Only 1
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: A [Only 1]
Notes:- A lab-created diamond is “grown” inside a lab using cutting-edge technology that replicates the natural diamond growing process. The result is a man-made diamond that is chemically, physically, and optically the same as those grown beneath the Earth’s surface.
- There are two types of lab-grown diamonds — CVD and HPHT. India particularly specializes and leads in the chemical vapour decomposition (CVD) technology that is certified as the purest type of diamonds.
- The process to create an HPHT diamond (High-Pressure High Temperature) mimic the pressure and temperatures found within the earth where natural diamond crystals are formed over millions of years.
- A CVD diamond (Chemical Vapour Deposition) is grown from a hydrocarbon gas mixture, similar to how diamonds form in interstellar gas clouds. It is a less costly method.
- In this, a thin slice of diamond seed is placed in a sealed chamber and heated to around 800 degrees Celsius, and then the chamber is filled with other carbon-rich gases such as methane. The gases are ionized into plasma using microwaves, lasers, and other techniques.
- The ionization breaks down the gases and allows the carbon to merge with the diamond seed, growing the diamond up layer by layer.
Originally written on
February 25, 2023
and last modified on
February 25, 2023.
Tags: upsc prelims test series 2023
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