On-line GK Test on Scientific Inventions - Set 04 - ObjectiveBooks
On-line GK Test on Scientific Inventions - Set 04

On-line GK Test on Scientific Inventions - Set 04

G.K. Practice Test: Question Set - 04

1. What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869?
    (A) Blender
    (B) Electric mixer
    (C) Washing machine
    (D) Vacuum cleaner
2. This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece.
    (A) Bessie Blount
    (B) Marjorie Joyner
    (C) Mae Jamison
    (D) Beulah Henry
3. In which decade was the ARRL founded?
    (A) 1940s
    (B) 1930s
    (C) 1920s
    (D) 1910s
4. Who invented Automobiles using gasoline?
    (A) Leo H Baekeland
    (B) Karl Benz
    (C) Evangelista Torricelli
    (D) Kirkpatrick Macmillan
5. The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name?
    (A) John Christopher Ballantyne
    (B) Joseph Cyril Bamford
    (C) John Christopher Baxter
    (D) Jack Croxford Baker
6. What item of apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931?
    (A) String bikini
    (B) Muumuu
    (C) Aloha shirt
    (D) Capri pants
7. In which decade was the first solid state integrated circuit demonstrated?
    (A) 1950s
    (B) 1960s
    (C) 1970s
    (D) 1980s
8. 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
9. What James Watt invented?
    (A) Diving bell
    (B) Steam boat
    (C) Hot air balloon
    (D) Rotary steam engine
10. What Benjamin Franklin invented?
    (A) Bifocal spectacles
    (B) Radio
    (C) Barometer
    (D) Hygrometer
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