C.Jules Levy D.Alexander Graham Bell
Answer & Explanation Answer: Option C Explanation: John Kruesi was a mechanic for Edison, and Kruesi built the phonograph. Edison designed it, and later improved the phonograph. 72. What beverage was invented by Charles Alderton in 1885 in Waco, Texas?
B.Coca-Cola C.Dr. Pepper D.Sprite Answer & Explanation Answer: Option D Explanation: The cherry-flavored cola made its debut at Morrison’s Old Corner Drugstore. 73. Who invented fuel cells in 1839?
B.Sir William Grove C.Sylvester Graham D.Joyce Hall Answer & Explanation Answer: Option E Explanation: Fuel cells were invented in 1839 by Sir William Grove. 74. The ELECTRIC BATTERY, who’s charged with inventing this one?
B.Amper C.Galvani D.Volta Answer & Explanation Answer: Option D Explanation: Italian, Alessandro Volta discovered the first practical battery in 1800. Life would be very different without batteries. 75. Who synthesized the first wholly artificial gene?
B.J.J. Thompson C.Benjamin Franklin D.Meghnad Saha Answer & Explanation Answer: Option A Explanation: No answer description available for this question. Let us discuss. 76. FROZEN FOOD – Who discovered the first practical method of freezing food?
B.F. Rozenosh C.G. Findus D.R. Scott Answer & Explanation Answer: Option D Explanation: In the 1920s Clarence Birdseye discovered that if food was flash-frozen under pressure, it would freeze without the formation of ice crystals. 77. When was the Raggedy Ann doll patented?
B.1920 C.1919 D.1911
Answer & Explanation Answer: Option E Explanation: Johnny Gruelle patented the Raggedy Ann doll in 1915. The Raggedy Andy doll and the Raggedy Ann books came later. 78. What Frank Whittle invented?
B.Ethyl gasoline C.Sonar D.Jet propulsion Answer & Explanation Answer: Option D Explanation: Invented in 1937. 79. When was the first Lionel trains manufactured?
B.1890 C.1901 D.1944 Answer & Explanation Answer: Option E Explanation: Joshua Lionel Cowen and Harry C. Grant started the Lionel Manufacturing Company on Sept. 5, 1900 in New York City. The first train, which was called the Electric Express, was manufactured in 1901 and was an open gondola propelled by a fan motor. As time has passed, the trains have been made in different colors and styles. 80. What item, originally called the ‘Whirlwind’, was invented by Ives McGaffey in 1869?
B.Electric mixer C.Washing machine D.Vacuum cleaner Answer & Explanation Answer: Option B Explanation: No answer description available for this question. Let us discuss. Click to read Next questions If you like the post please give rating, share to your friends by clicking share button and comment below.
These questions are useful for any competitive exam like IAS, Bank PO, SSC CGL, RAS, CDS, UPSC exams, and all state-related exams. You can attempt them for fun too.
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