Inventions Practice Question and Answer

Q:

____ was the inventor of radar?

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  • 1
    J. H. Van Tassel
    Correct
    Wrong
  • 2
    Wilhelm K. Roentgen
    Correct
    Wrong
  • 3
    P.T.Farksworth
    Correct
    Wrong
  • 4
    A. H. Taylor and Leo C. Young
    Correct
    Wrong
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Answer : 4. "A. H. Taylor and Leo C. Young"
Explanation :

A. H. Taylor and Leo C. Young were American scientists who played a crucial role in the development of radar technology. They are credited with creating the first radar system in the United States. Radar, which stands for "Radio Detection and Ranging," is a technology that uses radio waves to detect and locate objects. It became essential during World War II for various applications, including aircraft detection and navigation. The work of Taylor and Young contributed significantly to the advancement of radar technology and its subsequent widespread use in military and civilian applications.

Q:

In which of the following states Rawatbhata Nuclear Plant is situated? 

1750 1

  • 1
    Rajasthan
    Correct
    Wrong
  • 2
    Gujarat
    Correct
    Wrong
  • 3
    Madhya Pradesh
    Correct
    Wrong
  • 4
    Tamil Nadu
    Correct
    Wrong
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Answer : 1. "Rajasthan "
Explanation :

The Rawatbhata Nuclear Power Plant is located in Rawatbhata, a town in the Chittorgarh district of the Indian state of Rajasthan. It is a complex that houses several nuclear reactors, including pressurized heavy water reactors (PHWR) and pressurized heavy water reactors of the Indian design. The plant plays a significant role in contributing to the electricity generation capacity of the region and the country.


Q:

Which space agency sends 104 satellites in a single mission in 2017?

1284 1

  • 1
    Russian Agency
    Correct
    Wrong
  • 2
    NASA
    Correct
    Wrong
  • 3
    ISRO
    Correct
    Wrong
  • 4
    China space Agency
    Correct
    Wrong
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Answer : 3. "ISRO"
Explanation :

The space agency that sent 104 satellites in a single mission in 2017 is the Indian Space Research Organisation (ISRO). The correct answer is (C) ISRO. ISRO's Polar Satellite Launch Vehicle (PSLV-C37) set a record by launching 104 satellites in a single mission on February 15, 2017.

Q:

Telephone was invented by

3066 1

  • 1
    Alexander Graham Bell
    Correct
    Wrong
  • 2
    J.L. Baird
    Correct
    Wrong
  • 3
    Stevenson
    Correct
    Wrong
  • 4
    Newton
    Correct
    Wrong
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Answer : 1. "Alexander Graham Bell"
Explanation :

The telephone was invented by Alexander Graham Bell. The correct answer is (A) Alexander Graham Bell. Bell is widely recognized for his pioneering work in the development of the telephone, and he received the first US patent for the invention of the telephone in 1876.


Q:

Who invented the railway engine?

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  • 1
    Charles Babbage
    Correct
    Wrong
  • 2
    Isaac Newton
    Correct
    Wrong
  • 3
    James Watt
    Correct
    Wrong
  • 4
    George Stephenson
    Correct
    Wrong
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Answer : 4. "George Stephenson"
Explanation :

The invention of the railway engine is credited to George Stephenson. The correct answer is (D) George Stephenson. George Stephenson, an English engineer, is known for developing the first practical steam locomotive, named "The Rocket," which played a crucial role in the early development of railways.

Q:

Who invented the FM radio?

5260 2

  • 1
    Edwin Howard Armstrong
    Correct
    Wrong
  • 2
    Edward Henrik Armstrong
    Correct
    Wrong
  • 3
    Louis Theroux
    Correct
    Wrong
  • 4
    Adam Anter
    Correct
    Wrong
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Answer : 1. "Edwin Howard Armstrong"
Explanation :

The inventor of FM (Frequency Modulation) radio is Edwin Howard Armstrong. The correct answer is (A) Edwin Howard Armstrong. Armstrong made significant contributions to radio technology, and he is credited with inventing FM radio in the 1930s.

Q:

In 1831, electricity became viable for use in technology when ________ created the electric dynamo.

2876 0

  • 1
    Benjamin Franklin
    Correct
    Wrong
  • 2
    Alessandro Volta
    Correct
    Wrong
  • 3
    Michael Faraday
    Correct
    Wrong
  • 4
    Thomas Edison
    Correct
    Wrong
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Answer : 3. "Michael Faraday"
Explanation :

In 1831, electricity became viable for use in technology when Michael Faraday created the electric dynamo. The correct answer is (C) Michael Faraday. 

Faraday's work on electromagnetic induction laid the foundation for the development of electric generators and dynamos, which played a crucial role in the generation of electric power.

Q:

Who is said to be the father of Indian Space Programme? 

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  • 1
    Abdul Kalam
    Correct
    Wrong
  • 2
    Rakesh Sharma
    Correct
    Wrong
  • 3
    Vikram Sarabhai
    Correct
    Wrong
  • 4
    Homi Bhabha
    Correct
    Wrong
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Answer : 3. "Vikram Sarabhai "
Explanation :

The father of the Indian Space Programme is often considered to be:

(C) Vikram Sarabhai

Dr. Vikram Sarabhai, an eminent scientist, visionary, and the founder of the Indian Space Research Organisation (ISRO), is widely regarded as the father of the Indian Space Programme. He played a pivotal role in establishing and nurturing India's space capabilities. Dr. Sarabhai was instrumental in the launch of India's first satellite, Aryabhata, in 1975, marking a significant milestone in the country's space exploration journey. His vision and leadership laid the foundation for the development of ISRO and the growth of India's space capabilities, making space exploration an integral part of the country's scientific and technological advancements.

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