Question Discussion & Solution

The correct answer is Jhulan Goswami.

Key Points

• To promote women’s empowerment, Legends League Cricket (LLC) has appointed cricketer Jhulan Goswami as an ambassador.
• LLC also announced an ‘All Women Match Official Team’ for the League that includes ICC empanelled female umpires and match referees from all across the world.
• Shandre Frtiz from South Africa will be the match referee for the entire League.

Additional Information 

• Important Current Affairs related to Cricket in 2021:
  • India has won the U-19 Asia Cricket Cup 2021 held in Dubai, UAE in December 2021.
  • South African wicket-keeper Quinton de Kock announced retirement from Test cricket on 30 December 2021.
  • India has become the first Asian team to win a Test match at Centurion after beating South Africa by 113-run.
  • Rishabh Pant has become the fastest Indian wicket-keeper to reach 100 dismissals in Test cricket.
  • He achieved this feat against South Africa in Centurion on Dec 28, 2021.​
  • Mohammed Shami has become the fifth Indian pacer to take 200 Test wickets.
  • In December 2021, Rishabh Pant has been appointed as the brand ambassador of Uttarakhand.
  • The International Cricket Council (ICC) has appointed Geoff Allardice as the permanent CEO of the International Cricket governing body in November 2021.
    • ICC Headquarters: Dubai, United Arab Emirates
    • ICC Founded: 15 June 1909
    • ICC Deputy Chairman: Imran Khwaja
    • ICC Chairman: Greg Barclay
  • In December 2021, the Board of Control for Cricket in India ( BCCI) has formed a committee for the differently-abled cricketers of the country.
  • Harbhajan Singh has announced retirement from all forms of cricket in December 2021.
  • He was the 1st Indian Cricketer to take Hat-trick wickets in Test Cricket.

• COCOMO prescribes a three stages process for project estimation
• In the first stage, an initial estimate is arrived at; Over the next two stages, the initial estimate is refined to arrive at a more accurate estimate
• COCOMO uses both single and multivariable estimation models at different stages of estimation
• The three stages of COCOMO estimation technique are basic COCOMO, intermediate COCOMO, and complete COCOMO

Note:

COCOMO stands for Constructive Cost Estimation Model.

The correct answer is Hydrocarbons.

Key Points

• The compounds which are formed by the covalent bond between carbon & hydrogen, are known as hydrocarbons.
• These are also known as 'parent compound'.
• Carbon is placed in the Second period.
• The atomic number of carbon is 6 while the weight is 12.
• Carbon needs 4 electrons to complete the octet state and it is full filled by covalent bonds.

Additional Information

•  Examples of Hydrocarbon.
• Natural Gas:
  • Natural gas contains 97% of Methane.
  • It is a colourless highly flammable gaseous hydrocarbon.
  • It is used as fuel for generating electricity and heat.
  • Natural gas is a compressed form that is used as fuel for vehicles which is known as CNG.
  • This is used for making fertilizers also, mainly ammonia.
• Methane:
  • Methane was discovered by the Italian scientist Alessandro Volta between 1776-1778 while he was studying the gases found in marshy land.
  • Melting Point- -182.5 degree
  • Boiling point- -161.5 degree
  • Methane gas is colourless and is less dense than water.
  • This gas is highly inflammable. While burning with oxygen it has a bluish flame.

The correct answer is Sirohi.

Key Points

• In Battle of Kayadara 1178, fought between Muhammad of Ghori and Bhimdev II the battle took place at Kayadra near Mount Abu (Sirohi District).

Important Points

• The battle of Kayadara (1178):
  • Gujarat was ruled by Mularaja II (1175-78: Chalukyan Dynasty) he was young at the time of Coronation.
  • In 1178, Mohd. Ghori crossed the desert and marched towards Gujarat.
  • Naikidevi (Mother of Mularaja) met forces of Ghori at Kayadara (near Mount Abu).
  • Naikidevi inflicted a major defeat to Muhammad Ghori and he was forced to retreat.
  • In 1178 itself, Bhima II, brother of Mularaja II succeeded Mularaja II.
  • As both the brothers occupied the throne during 1178, hence some historians also credit Bhima II with defeating Mohd. Ghori.

Windows is NOT correct.

Key Points 

• Among the options, only Windows is NOT an open-source operating system.
• Windows is a closed source operating system marketed by Microsoft.
• Microsoft first introduced the Windows operating system on 20 November 1985.
• Closed Operating Systems are built with numerous codes and complex programming and that is called source code. 
• An Open-source Operating System is the Operating System in which source code is visible publically and editable.
• The operating system is a collection of programs that controls the overall operations of the computer.
• Operating system is a System software in computers.
• It works as an interface between user and computer hardware components.
• Examples of operating systems are:
  • Linux.
  • Unix.
  • DOS.
  • Windows.
  • Ubuntu.
  • Embedded operating system.
  • OpenBSD.
  • Mac OS.