Question Discussion & Solution

The correct answer is Violence.

Key Points

• Violence
  • It is defined by the World Health Organization in the WRVH as “the intentional use of physical force or power, threatened or actual, against oneself, another person, or against a group or community, that either results in or has a high likelihood of resulting in injury, death, psychological harm, maldevelopment or deprivation” 

Additional Information

• Nonviolence
  • It is the personal practice of not causing harm to one's self and others under every condition.
• Hatred
  • It is an angry or resentful emotional response to certain people or ideas. 

Explanation:

• Bronze is an alloy of copper and tin as the two main constituent elements.
• Bronze is a copper-based alloy that typically consists of approximately 88% copper and 12% tin.
• Some other elements added in minute quantities can be aluminium, nickel or zinc.
• It is one of the first alloys used by mankind and an entire era known as the 'Bronze Age' is known because of the extensive use of the alloy in many human artefacts.

Additional Information

Steel: 

• Stainless steel is an alloy of iron and chromium.
• Steel is an alloy of iron and carbon.
• Stainless steels are steels containing at least 10.5% chromium, less than 1.2% carbon, and other alloying elements.

Solder:

• Soldering is a joining process used to join different types of metals together having different properties. 
• Solder is a metal alloy, usually made up of tin and lead which is melted using a hot iron (soldering iron).
• The iron is heated to temperatures above 600˚F which then cools to create a strong bond.
• Flux material used in soldering is ZnCl2 (Zinc Chloride) and NH4Cl (Ammonium Chloride).

Brass:

• Brass is a metal alloy that is made up of copper and zinc.
• The proportions of zinc and copper can vary to create different types of brasses with different properties.
• It has higher malleability than bronze or zinc and has a relatively low melting point (900 to 940 °C).

Mistake Points

• Copper was the first metal used by men.
• Copper was first used by man over 10,000 years ago.  
• Probably copper can be found as a naturally occurring native metal that is sometimes found in large lumps on the ground.
• People learned to make this into copper tools and other things, although, for a metal, it is quite soft.
• When it was melted over the fire, people learned how to make an alloy called bronze, which is much harder and stronger than copper.

The correct answer is number of pixels.

• The resolution of the monitor is measured by a number of pixels on the monitor.
  • Resolution is the capability of a sensor to observe the smallest object clearly.
• Pixel is the smallest unit of an image/display that a computer is capable of printing or displaying.
  • It is the basic logical unit in digital graphics.
  • A complete image or any visible thing on a computer display is formed by a combination of pixels.
  • The resolution depends upon the size of the pixel.
  • Images with smaller pixels will have a higher resolution.

The correct answer is Jodhpur.

• The 'Central Arid Zone Research Institute (ICAR)' of Rajasthan is located in Jodhpur.

Key Points

• Central Arid Zone Research Institute (ICAR):
  • It was established by the Government of India in 1959.
  • Its current director is Dr. O.P. Yadav.
  • This institute does arid zone research and development.  
  • It comes under the Indian Council of Agricultural Research.
  • ICAR comes under the aegis of the Ministry of Agriculture and Farmers Welfare.

Concept:

System modelling is the process of developing abstract models of a system and each model presenting a different view or perspective of that system. 

Explanation:

Concept that has to be considered while modelling a new system are:

Abstraction: at highest level of abstraction, a solution is stated in broad terms while at the lowest level of abstraction a more detailed solution is provided.

Modularity: it is the single attribute of the software that allows a program to be individually manageable.

Information hiding in this algorithms and data contained within a module are inaccessible to to other modules.

Some other factors that are considered are: architecture, pattern, functional independence, refinement, refinement.