Question Discussion & Solution

The correct answer is Plotter.

• The plotter is an output device producing continuous lines of different colours.

​Key Points

• Plotter
  • ​The plotter is used to draw Continuous lines.
  • A plotter is a printer that reads commands from a computer to make line drawings on paper with one or more automated pens.
  • The plotter can draw continuous point-to-point lines directly from vector graphics files or commands.
• There are a number of different types of plotters:
  • A drum plotter
    • Draws on paper wrapped around a drum which turns to produce one direction of the plot, while the pens move to provide the other direction.
  • A flatbed plotter
    • It draws on paper placed on a flat surface.
  • An electrostatic plotter
    • It is used to draw on negatively charged paper with positively charged toner.

Additional Information

• Daisy wheel printing 
  • It is an impact printing technology invented in 1970 by Dr. Andrew Gabor.
  • Used for high-quality text printing.
• Chain Printer
  • An early line printer that used type slugs linked together in a chain as its printing mechanism.
  • The chain spins horizontally around a set of hammers.
  • When the desired character is in front of the selected print column, the corresponding hammer hits the paper into the ribbon and onto the character in the chain.

The correct answer is Visakha.

• In Visakha, case reference does the 'Sexual Harassment of Women at Workplace' Act enshrines and encompasses almost all the guidelines given.

Key Points

• ​Sexual Harassment of Women at Workplace Act
  • Workplace sexual harassment in India was for the very first time recognized by the Supreme Court of India (“Supreme Court”) in its landmark judgment of Vishaka v. State of Rajasthan (“Vishaka Judgment”),
  • Here the Supreme Court framed certain guidelines and issued directions to the Union of India to enact an appropriate law for combating workplace sexual harassment

​Additional Information

• Workplace sexual harassment is a form of gender discrimination that violates a woman’s fundamental right to equality and right to life, guaranteed under Articles 14, 15 and 21 of the Constitution of India (Constitution).​

The correct answer is Al2O3.

Key Points

•  Al2O3  reacts with acids and bases.
  • Aluminum oxide (Al2O3) is an amphoteric substance.
  • The amphoteric substance is a substance that can react with both acids and bases usually to produce salt and water.
  • Aluminium oxide therefore can react with both acids as well as bases. We will take the example of its reaction with hydrochloric acid (strong acid) and sodium hydroxide (strong base).
  • When mixed with these two compounds aluminium oxide either acts like  acid with a base and a base with an acid.

Additional Information

• Al₂O₃ + 6 HCl → 2 AlCl₃ + 3 H₂O (acts like a base)
• Al2O3 + 2 NaOH + 3 H₂O → 2 NaAl(OH)₄ (sodium aluminate) (acts like an acid)
• On reacting Al2O3 with HCl, we get Aluminium Chloride as the salt and water as a by-product.
  • Likewise, the reaction between NaOH ( Strong Base) and Al₂O₃ results in the formation of Sodium Aluminate as salt and water.

The correct answer is Daya Bai.

Key Points 

• Daya Bai-
  • She was born in Dehra village, Alwar.
  • She was the disciple of Charandas ji.
  • The Daya Bodh and Vinaya Malika texts were written by her.

Additional Information 

• Meera Bai was a disciple of Sant Raidas Ji, Tika Ra Govinda, Narsi Mehta Ri Hundi, Rukmani Mangal, and Meera Padvaliya were written by her.
• Ratan Kumari Jhali was the disciple of Raidas Ji and was Mirabai's mother-in-law.
• Sahajo Bai was the disciple of Charandas Ji.
  • Sahaj Prakash Granth was written by her.

In this question we shows that Pen is used for Writing.

Similarly, Spoon is used for Eating.

But Gun comes under Weapon, Teacher teach in School and Eraser and Pencil is different things.

Option 1, 3 and 4 is not correct.

Hence, "Spoon : Eating" is the correct answer.