Question Discussion & Solution

• A CASE tool is a generic term used to denote any form of automated support for software engineering, in a more restrictive sense a CASE tool can mean any tool used to automate some activity associated with software development
• Some of the CASE tools assist in phase-related tasks such as specification, structured analysis, design, coding, testing, etc. and others to non-phase activities such as project management and configuration management
• The primary objectives of using any CASE tool are:

1. To increase productivity.
2. To help produce better quality software at a lower cost.

The correct answer is Anand Math.

• The National song of India, ‘Vande Matram’ has been taken from Anand Math.

Key Points

• Anand Math:
  • It was authored by Bankim Chandra Chatterjee.
  • The book was originally written in 1882.
  • Anandamath takes the reader back to Bengal in the clutches of the famine, the backdrop of the pre-independence struggle and the turmoil of human lives caught in this frame of time. 
  • It is considered one of the most remarkable works of the Bangla language and Indian literature.
  • Through the book, Bankim also gave us the song ‘VandeMataram’which became the rallying call for rebels.
  • The first two stanzas eventually became the National song of India.
  • One of the gems of Indian Literature, ‘Anandmath’ carries a deep sentiment of nationalism which was the essence of the freedom struggle.

Additional Information

• The 'Neel Darpan' published in 1860 portrays the plight of indigo cultivators was created by Deenbandhu Mitra.
• The first play ever commercially staged was Neel Darpan in 1872.
• It was translated by Micheal Madhusudan Dutta and it was published by

The correct answer is Plaster of Paris.

Key Points

• Plaster of Paris is the generic name of calcium sulphate hemihydrate-CaSO₄. 1/2H₂O.
  • Plaster of Paris is manufactured by heating gypsum at 423K or 150^o C/300^o F.
  • On heating gypsum at 423 K, it loses water molecules and becomes calcium sulfate hemihydrate. This product is known as the plaster of Paris.

Important Points

• Application of Plaster of Paris-
  • It is used as a building material as a protective coating on walls and ceilings.
  • It is used as a moulding and vesting agent for decorative elements.
  • It is also used for aesthetic touch to the construction elements.
  • It is also field as plaster in orthopedics and as a filling material by dentists, etc.

Additional Information

• Baking soda is also known as sodium bicarbonate or bicarbonate of soda.
• Vinegar is also known as acetic acid. It typically contains 5–8% acetic acid by volume.
• Washing soda is a chemical compound with the formula Na₂CO₃, also known as sodium carbonate.

The logic is:

Starting from 3 in the clockwise direction:

3 × 2 - 1 = 5

5 × 2 - 2 = 8 

8 × 2 - 3 = 13

13 × 2 - 4 = 22

Similarly, 

22 × 2 - 5 = 44 - 5 = 39

Hence, 39 is the correct answer. 

Explanation:

• Plants that grow in the desert have to withstand long dry spells of summer and extreme weather condition
• Hence their leaves stem and roots get modified to prevent loss of excess water and to store water
• Some common adaptation seen in desert plants are:
• 'they have a long root that goes deep in search of water
• they have reduced or very few leaves
• The stem is modified to store water
• Additionally, leaves may turn into spines to protect from predators

Additional Information

• Desert Oak is a tree that is found in  Australia.
• It is found in the dry and arid regions of Australia
• It grows almost 10 ft tall
• It has very few leaves
• Its roots go very deep in search of water
• This water is stored in the tree trunk. Local people use a thin pipe to drink this water.

• Scientific Name: Allocasuarina decaisneana 

• The suspensions that hand from branches are nothing but modifies leaves in order to reduce water loss