Daily UPSC Prelims Current Affairs – February 11, 2023 [Mock Test]
February 25, 2023 February 25, 2023
1. Consider the following pairs of trilateral defence exercises and respective states:
- Dosti – India, Bangladesh and Sri Lanka
- IMT TRILAT – India, Maldives and Thailand
- SITMEX – India, Singapore and Thailand
Which of the pairs given above is/are correctly matched?
[A] Only 2
[B] Only 3
[C] Only 2 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: B [Only 3]
Notes:- Dosti trilateral Exercise was started in 1995 between India and Maldives later it was joined by Sri Lanka. The year 2021 marks 30 years since these exercises were first launched.
- The first edition of India-Mozambique-Tanzania Trilateral Exercise (IMT TRILAT), a joint maritime exercise among the Indian, Mozambique and Tanzanian navies commenced at Dar Es Salaam, Tanzania on 27 Oct 22.
- SITMEX is a trilateral maritime exercise between Singapore-India-Thailand. The first edition was conducted off Port Blair in September 2019.
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.
