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General Knowledge questions and answers on various inventions and discoveries in the world. These questions are important for various competitive exam point of view.

1) Who invented the telephone ? a. J.L Baird b. Alexander Graham Belt c. Marconi d. James Dewar
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Answer =B
2) Who propounded the Quantum Theory ? a. Albert Einstein b. James C. Maxwell c. Heisenberg d. Max Planck
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Answer =D
3) Who is the inventor of railway engine ? a. George Stephenson b. W.H.F. Talbot c. Richard Trevithik d. Eli Whitney
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Answer = C
4) Who is believed to be the father of Virology, i.e study of viruses and the disease caused by them ? a. Beljernick b. Andre lwolf c. Louis Pasteur d. William Harvey
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Answer = A
5) Who invented the safety match ? a. Humphrey Davy b. Gillette c. Landstorm d. R.W. Thomson
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Answer = C
6) Who among the following was propounded the theory that hysteria represented undischarged emotional energy ? a. William Harvey b. Edward Jenner c. Sigmund Freud d. Johann Baeyer
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Answer = C
7) Who is the inventor of printing press ? a. Johann Gutenberg b. William Lee c. George Eastman d. R.W. Thomson
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Answer = A
8) Who was the founder of modern atomic theory ? a. John Dalton b. James Ritty c. Ernest Walton d. None of above
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Answer = A
9) Who invented Zero? a. Aristotle b. Bhaskara c. Varahamihira d. None of above
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Answer = D
10) Name the famous German physician who propounded the theory that "like cures like"? a. Frank Mores b. Karl Landsteiner c. Samuel Hahnermann d. None of above
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Answer = C Information technology multiple choice and objective type quiz questions and answers

1) Who invented microprocessor ? a. Joseph Jacquard b. Herman H Goldstein c. Marcian E Huff d. George Boole
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Answer =C
2) .INI extention refers to which kind of file ? a. Image file b. System file c. Hypertext related file d. Image color matching profile file
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Answer =B
3) Who built the world's first binary digit computer ? a. Alan Turing b. Konrad Zuse c. George Boole d. Ken Thompson
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Answer =B
4) What is VCM ? a. Virtual Connection Manager b. Virtual Channel Memory c. Video Controlled Modem d. Voice Connection Module
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Answer =B
5) Who is largely responsible for breaking the German Enigma Codes created a test provided a foundation for artificial intelligence ? a. Alan Turing b. Jeff Bezos c. George Boole d. Charles Babbage
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Answer = A
6) Who co - founded Hotmail in 1996 and then sold the company to microsoft ? a. Shawn Fanning b. Ada Byron Lovelace c. Sabeer Bhatia d. Ray Tomlinson
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Answer = C
7) What was the first ARPANET message? a. Hello world b. Cyberspace, the final frontier c. mary has a little lamp d. Lo
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Answer = D
8) Where are the headquarters of Microsoft located ? a. Santa Clara b. Tucson c. Redmond d. Richmond
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Answer = A
9) What does DOCSIS stands for ? a. Data over cable service internet standard b. Data over cable security internet standard c. Data over cable secure international standard d. Data over cable service interface srandard
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Answer = D
10) Who designed the first electronic computer - ENIAC? a. Von Neumann b. Joseph M Jacquard c. J.P.Eckert and J.W.Mauchly d. All of above
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Answer = C

| | | | * General Knowledge :: Inventions Exercise * Section 1"I never see what has been done; I only see what remains to be done."- Marie Curie 1. | Who invented the BALLPOINT PEN? A. | Biro Brothers | | | | | | | | | Answer & ExplanationAnswer: Option AExplanation:The Hungarian brothers, Laszlo and George Biro, made the first ball point pen in 1894. It followed the first workable fountain pen which was invented by L.E. Waterman in 1884. View Answer Workspace Report Discuss in Forum | 2. | In which decade was the first solid state integrated circuit demonstrated? A. | 1950s | B. | 1960s | C. | 1970s | D. | 1980s | | | Answer & ExplanationAnswer: Option AExplanation:On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild. View Answer Workspace Report Discuss in Forum | 3. | What J. B. Dunlop invented? A. | Pneumatic rubber tire | B. | Automobile wheel rim | C. | Rubber boot | D. | Model airplanes | | | Answer & ExplanationAnswer: Option AExplanation:Invented in 1887. View Answer Workspace Report Discuss in Forum | 4. | Which scientist discovered the radioactive element radium? A. | Isaac Newton | B. | Albert Einstein | C. | Benjamin Franklin | D. | Marie Curie | | | Answer & ExplanationAnswer: Option DExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum | 5. | When was barb wire patented? A. | 1874 | B. | 1840 | C. | 1895 | D. | 1900 | | | Answer & ExplanationAnswer: Option AExplanation:Joseph F. Glidden was born in New York on Jan. 18, 1812. He invented barbed wire in 1873 and was granted the patent on Nov. 24, 1874. After a three year battle over the patent, which he eventually won, Gidden became known as the "Father of Barbed Wire". View Answer Workspace Report Discuss in Forum | 6. | What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? A. | Charles Richter | B. | Hiram Walker | C. | Giuseppe Mercalli | D. | Joshua Rumble | | | Answer & ExplanationAnswer: Option AExplanation:Richter was born on an Ohio farm in 1900. He died in 1985. View Answer Workspace Report Discuss in Forum | 7. | What Galileo invented? A. | Barometer | B. | Pendulum clock | C. | Microscope | D. | Thermometer | | | Answer & ExplanationAnswer: Option DExplanation:Various authors have credited the invention of the thermometer to Cornelius Drebbel, Robert Fludd, Galileo Galilei or Santorio Santorio. The thermometer was not a single invention, however, but a development.Galileo Galilei also discovered that objects (glass spheres filled with aqueous alcohol) of slightly different densities would rise and fall, which is nowadays the principle of the Galileo thermometer (shown). Today such thermometers are calibrated to a temperature scale.View Answer Workspace Report Discuss in Forum | 8. | This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel. A. | George Washington | B. | Alexander Hamilton | C. | John Adams | D. | Thomas Jefferson | | | Answer & ExplanationAnswer: Option DExplanation:Thomas Jefferson (April 13, 1743 - July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776). | | | | | 9. | What James Watt invented? A. | Diving bell | B. | Steam boat | C. | Hot air balloon | D. | Rotary steam engine | | | Answer & ExplanationAnswer: Option DExplanation:Invented in 1765. View Answer Workspace Report Discuss in Forum |

10. | Where is the village of Branston, after which the famous pickle is named? A. | Yorkshire | B. | Lancashire | C. | Staffordshire | D. | Norfolk | | | Answer & ExplanationAnswer: Option CExplanation:The village of Branston is in Staffordshire, just south of Burton-on-Trent. View Answer Workspace Report Discuss in Forum |

11. | Who invented Jet Engine? A. | Sir Frank Whittle | B. | Gottlieb Daimler | C. | Roger Bacon | D. | Lewis E. Waterman | | | Answer & ExplanationAnswer: Option AExplanation:Dr. Hans von Ohain and Sir Frank Whittle are recognized as the co-inventors of the jet engine. Each was working separately and knew nothing of the others work. Although Whittle started first, von Ohain was first to design and develop a turbojet engine to power an aircraft.

Of the many honors received by both, the most significant honor was probably "The Charles Draper Prize" in 1992 which was given to both Hans von Ohain and Sir Frank Whittle for their efforts and contributions to aviation and mankind. "The Charles Draper Prize" is recognized as the equivalent to the Nobel Prize in technology. View Answer Workspace Report Discuss in Forum |

12. | What invention caused many deaths while testing it? A. | Dynamite | B. | Ladders | C. | Race cars | D. | Parachute | | | Answer & ExplanationAnswer: Option DExplanation:Many people who tried to test the first parachutes died by jumping from high places. One attempt was a parachute hat, but the inventor broke his neck while testing it. The first successful parachute was tested from a hot air balloon in 1797, in France, by Jacques Garnerin. View Answer Workspace Report Discuss in Forum |

13. | Who invented Gunpowder? A. | G. Ferdinand Von Zeppelin | B. | Sir Frank Whittle | C. | Roger Bacon | D. | Leo H Baekeland | | | Answer & ExplanationAnswer: Option CExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum |

14. | Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? A. | 1828 | B. | 1831 | C. | 1825 | D. | There is no sure date | | | Answer & ExplanationAnswer: Option DExplanation:No one knows for sure when the first chocolate bar appeared or even who made it, but an important event occurred in 1828. The Van Houten press was invented, which extracted cocoa butter from the bean - the same press that brought the Cadbury Brothers success with Cocoa Essence. View Answer Workspace Report Discuss in Forum |

15. | In which decade was the telephone invented? A. | 1850s | B. | 1860s | C. | 1870s | D. | 1880s | | | Answer & ExplanationAnswer: Option CExplanation:Alexander Graham Bell's notebook entry of 10 March 1876 describes his successful experiment with the telephone. Speaking through the instrument to his assistant, Thomas A. Watson, in the next room, Bell utters these famous first words, "Mr. Watson -- come here -- I want to see you". View Answer Workspace Report Discuss in Forum |

16. | Who perfected GENETIC ENGINEERING? A. | Cohen & Boyer | B. | Hunt & Davids | C. | Sinclair & Roberts | D. | Jaysson & Simons | | | Answer & ExplanationAnswer: Option AExplanation:Genetic Engineering, the technique of DNA cloning was perfected by Stanley Cohen and Herbert Boyer in 1973. | 7. | What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? A. | Microwave oven | B. | Remote control | C. | VCR | D. | Calculator | | | Answer & ExplanationAnswer: Option BExplanation:The first wireless remote control for television was called Flashmatic. (Remember when you had to get up to change the channel?) View Answer Workspace Report Discuss in Forum |

18. | What Benjamin Franklin invented? A. | Bifocal spectacles | B. | Radio | C. | Barometer | D. | Hygrometer | | | Answer & ExplanationAnswer: Option AExplanation:Invented in 1760.

A list of Benjamin Franklin's inventions reveals a man of many talents and interests. It was the scientist in Ben that brought out the inventor. His natural curiosity about things and the way they work made him try to find ways to make them work better.

Ben had poor vision and needed glasses to read. He got tired of constantly taking them off and putting them back on, so he decided to figure out a way to make his glasses let him see both near and far. He had two pairs of spectacles cut in half and put half of each lens in a single frame. Today, we call them bifocals. View Answer Workspace Report Discuss in Forum |

19. | This part-time race car driver invented the bucket seat in 1969. Who was he?? A. | Steve McQueen | B. | Harrison Frazier | C. | Paul Newman | D. | John Wayne | | | Answer & ExplanationAnswer: Option AExplanation:McQueen died in 1980 from a rare form of lung cancer. View Answer Workspace Report Discuss in Forum |

20. | What plaything was invented by Joe McVicker in 1956? A. | Silly Putty | B. | Etch-A-Sketch | C. | Lite-Brite | D. | Play-Doh | | | Answer & ExplanationAnswer: Option DExplanation:The stuff was originally intended to be wallpaper cleaner! (I used to eat this as a child) View Answer Workspace Report Discuss in Forum |

21. | Who was the first American female to patent her invention, a method of weaving straw with silk? A. | Marjorie Joyner | B. | Margaret Knight | C. | Amanda Jones | D. | Mary Kies | | | Answer & ExplanationAnswer: Option DExplanation:Mary was not the first American woman inventor to be sure, there were many female inventors before her, but they never bothered to get a patent. View Answer Workspace Report Discuss in Forum |

22. | Who invented Gramophone? A. | Michael Faraday | B. | Fahrenheit | C. | Sir Alexander Graham Bell | D. | Thomas Alva Edison | | | Answer & ExplanationAnswer: Option DExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum |

23. | Who invented Internal Combustion Engine? A. | Roger Bacon | B. | Karl Benz | C. | Dr. Alan M. Turing | D. | Otto | | | Answer & ExplanationAnswer: Option DExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum |

24. | When was Monopoly created? A. | 1940s | B. | 1930s | C. | 1920s | D. | 1950s | | | Answer & ExplanationAnswer: Option BExplanation:After the Stock Market crash, a buying and selling game created by Charles Darrow came to be. The first games were hand drawn on linoleum with streets from Atlantic City, N.J. as the property. He took the game to the Parker Brothers company, and Monopply was brought out for Christmas 1934. Everyone wanted to buy the games after Christmas, and Monopoly became a big success. | 25. | What furniture item was invented by California furniture designer Charles Prior Hall in 1968? A. | Sofa bed | B. | Captain's chair | C. | Waterbed | D. | Hammock | | | Answer & ExplanationAnswer: Option CExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum |

26. | The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? A. | Robert Oppenheimer | B. | James B. Conant | C. | Leslie R. Groves | D. | Vannevar Bush | | | Answer & ExplanationAnswer: Option AExplanation:Leslie R. Groves, however, was the military head of the project and the overall supremo, while Robert Oppenheimer was the scientific director. The world's first atomic bomb was exploded in the New Mexico desert on July 16, 1945. View Answer Workspace Report Discuss in Forum |

27. | When was the first lawn mower invented? A. | 1830 | B. | 1854 | C. | 1835 | D. | 1849 | | | Answer & ExplanationAnswer: Option AExplanation:The first lawn mowers were not engine powered. Invented in 1830 by Edwin Budding of England, the mowers were turning blades on wooden sticks used to cut grass. Engine powered mowers were not invented until 1919 by an American Army colonel, who used the motor from a washing machine. View Answer Workspace Report Discuss in Forum |

28. | In which decade were the first successful diode and triode vacuum tubes invented? A. | 1800s | B. | 1880s | C. | 1890s | D. | 1900s | | | Answer & ExplanationAnswer: Option DExplanation:In 1904, John Ambrose Fleming invented the first practical electron tube called the 'Fleming Valve', which is a diode rectifier. In 1906, Lee de Forest invented the audion later called the triode, which provided signal amplification. View Answer Workspace Report Discuss in Forum |

29. | Who is the English physicist responsible for the 'Big Bang Theory'? A. | Albert Einstein | B. | Michael Skube | C. | George Gamow | D. | Roger Penrose | | | Answer & ExplanationAnswer: Option CExplanation:George Gamow. Gamow, who died in 1968, was a physicist, who published "Thirty Years that Shook Physics". View Answer Workspace Report Discuss in Forum |

30. | What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892? A. | Frisbee | B. | Monopoly | C. | Ouija board | D. | Ping Pong | | | Answer & ExplanationAnswer: Option CExplanation:The board was invented by Isaac and William Fuld. The word 'Ouija' comes from the French and German words for 'yes', 'oui' and 'ja'. View Answer Workspace Report Discuss in Forum |

31. | Who had an explosive idea and first patented DYNAMITE? A. | J. R. Gluber | B. | A. Nobel | C. | G. Fawks | D. | W. Bickford | | | Answer & ExplanationAnswer: Option BExplanation:Alfred Noble patented dynamite in 1876. Nobel left $9 million in his will to be used as awards for people whose work benefit humanity - The Nobel Peace Prize etc. View Answer Workspace Report Discuss in Forum |

32. | Who invented the Spinning Jenny? A. | Thornton Hargreaves | B. | Peter Hargreaves | C. | James Hargreaves | D. | Simon Hargreaves | | | Answer & ExplanationAnswer: Option CExplanation:Awarded a Patent in 1770. It used 8 bobbins at once. | 33. | Which insurance salesman invented the fountain pen in 1884? A. | Lewis Edson Waterman | B. | Sir William Grove | C. | Charles Kettering | D. | George Fountain | | | Answer & ExplanationAnswer: Option AExplanation:Lewis Edson Waterman patented the first practical fountain pen in 1884. View Answer Workspace Report Discuss in Forum |

34. | When was the first elevator built? A. | 1743 | B. | 1739 | C. | 1760 | D. | 1785 | | | Answer & ExplanationAnswer: Option AExplanation:The first elevator was built in the palace of King Louis XV. It only traveled up one floor, and was hand powered by men inside the chimney. View Answer Workspace Report Discuss in Forum |

35. | What charge card, developed in 1950, was the first to be accepted nationally in the US? A. | Visa | B. | Discover | C. | MasterCharge | D. | Diner's Club | | | Answer & ExplanationAnswer: Option DExplanation:The card was invented by Frank McNamara and Ralph Schneider. View Answer Workspace Report Discuss in Forum |

36. | What Enrico Fermi invented? A. | X ray machine | B. | Betatron | C. | Cyclotron | D. | Nuclear reactor | | | Answer & ExplanationAnswer: Option DExplanation:Invented in 1942. View Answer Workspace Report Discuss in Forum |

37. | Which of the following was first patented by an Australian in 1889? A. | Electric Drill | B. | Electric Shaver | C. | Electric Fence | D. | Electric Heater | | | Answer & ExplanationAnswer: Option AExplanation:The Electric Drill was the invention of Arthur James Arnot. On 20 August 1889 he patented his design while working for the Union Electric Company in Melbourne. His original design was meant primarily for drilling rock to find coal! View Answer Workspace Report Discuss in Forum |

38. | Who among the following invented the small pox vaccine? A. | Robert Koch | B. | Edward Jenner | C. | Robert Hooke | D. | Louis Pasteur | | | Answer & ExplanationAnswer: Option BExplanation:No answer description available for this question. Let us discuss. View Answer Workspace Report Discuss in Forum |

39. | What George Westinghouse invented? A. | Light bulb | B. | Electric razor | C. | Refrigerator | D. | Railway air brakes | | | Answer & ExplanationAnswer: Option DExplanation:Invented in 1868. View Answer Workspace Report Discuss in Forum |

40. | Who is the only U.S. President to invent and patent something? A. | Abraham Lincoln | B. | Theodore Roosevelt | C. | Thomas Jefferson | D. | Rutherford B. Hayes | | | Answer & ExplanationAnswer: Option AExplanation:In 1849 Honest Abe invented a method to aid ships that got stuck on sandbars. He called it A Device for Buoying Vessels Over Shoals. It was never used. | 41. | What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? A. | Telegraph | B. | Radio | C. | Television | D. | Dishwasher | | | Answer & ExplanationAnswer: Option CExplanation:Zworykin invented both the tube (iconoscope) for transmission and the receiver (kinescope) in 1923 and 1924, respectively. View Answer Workspace Report Discuss in Forum |

42. | Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent? A. | Banjo | B. | Oboe | C. | Clarinet | D. | Harmonium | | | Answer & ExplanationAnswer: Option DExplanation:Ben also holds a lot of firsts - first U.S. ambassador, first political cartoonist, first American philosopher, organized the first fire department, and on and on. View Answer Workspace Report Discuss in Forum |

43. | What Thomas Davenport invented? A. | Screw propellor | B. | Electric streetcar | C. | Chesterfield | D. | Sleeping (railway) car | | | Answer & ExplanationAnswer: Option BExplanation:Invented in 1834. View Answer Workspace Report Discuss in Forum |

44. | What Elisha Otis invented? A. | The brake used in modern elevators | B. | Jet Engine | C. | Turbine | D. | Hydraulic Crane | | | Answer & ExplanationAnswer: Option AExplanation:In 1853, American inventor Elisha Otis demonstrated a freight elevator equipped with a safety device to prevent falling in case a supporting cable should break. This increased public confidence in such devices. Otis established a company for manufacturing elevators and patented (1861) a steam elevator.Many people think that he invented the elevator, but the truth is, he invented the elevator brake. He also invented the railway safety brake.View Answer Workspace Report Discuss in Forum |

45. | Where was the yo-yo invented? A. | France | B. | United States | C. | Philippines | D. | England | | | Answer & ExplanationAnswer: Option CExplanation:The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines. View Answer Workspace Report Discuss in Forum |

46. | For what does the world owe Almon Strowger a debt of gratitude? A. | Parking Meters | B. | Vending Machines | C. | Automatic Telephone Exchanges | D. | Traffic Lights | | | Answer & ExplanationAnswer: Option CExplanation:He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work! View Answer Workspace Report Discuss in Forum |

47. | Who is often called the 'first African-American' inventor? A. | Bessie Blount | B. | George Washington Carver | C. | Benjamin Banneker | D. | Elijah McCoy | | | Answer & ExplanationAnswer: Option CExplanation:Banneker was a member of the planning committee that designed Washington, DC along with Pierre L'Enfant. When L'Enfant was fired Banneker recreated the plans from memory. View Answer Workspace Report Discuss in Forum |

48. | The first hand glider was designed by...? A. | Leonardo DaVinci | B. | The Wright brothers | C. | Francis Rogallo | D. | Galileo | | | Answer & ExplanationAnswer: Option AExplanation:No answer description available for this question. Let us discuss. |