Explorers and Inventors MCQs - General Knowledge Practice | PakExamPoint
Practise Explorers and Inventors MCQs in General Knowledge. Attempt multiple-choice questions, check answers and revise related subtopics.
Explorers and Inventors MCQs and revision practice
Study Explorers and Inventors through multiple-choice questions in General Knowledge. This subtopic contains 379 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Explorers and Inventors MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation The first mechanical computer was designed by Charles Babbage. Analytical Engine, generally considered the first computer, designed by Charles Babbage I n the 19th century (he worked on it until he died in 1871).
Explanation The Nobel Prize for the discovery of the electron was awarded to J. J. Thomson in 1906 . He received the Nobel Prize in Physics for his investigations into the conduction of electricity in gases, which led to the discovery of the electron in 1897 . *****
Explanation Braille education system was introduced by Braille for Blinds. Braille education system Creator: Louis Braille Additional information Braille is a system that uses combinations of raised dots to spell letters and numbers. Louis Braille was a French educator and the inventor of a reading and writing system Braille was blinded at the age of three in one eye
Explanation On March 18, 2025 , NASA astronauts Nick Hague, Sunita (Suni) Williams, and Butch Wilmore , along with Roscosmos cosmonaut Aleksandr Gorbunov, safely splashed down near Tallahassee, Florida in a SpaceX Dragon spacecraft. A unique sight during landing was a pod of dolphins circling the capsule , making the event memorable.
Explanation The concept of the ' invisible hand ' was introduced by Adam Smith . It describes how individuals pursuing their own self-interest unintentionally contribute to the overall economic well-being of society.
Explanation Shirley Ann Jackson ( 1946-present) i s a theoretical physicist. Her research and experiments paved the way for the creation of: fiber optic cables touch-tone telephones caller ID and call waiting. Awards : National Medal of Science for Physical Science while Fiber optics was invented by Thomas Mensah ND17-1-2023
Explanation David Livingstone In 1855, David Livingstone was the first European to see Victor i 1855, David Livingstone was the first European to see Victori a Falls (the border betw (the border betw een modern Zambia and Zimbabwe). He named her after Queen Victoria.
Explanation James Harrison , an Australian inventor, is credited with creating the first practical refrigeration system in 1856 . His work laid the foundation for modern refrigeration technology , which was crucial for preserving food and other goods.
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