GK - Inventions & Discoveries 2
| Description: General Knowledge Questions Related to Who Invented and Discoveries for Competitive Exams Preparation and Practice | |
| Number of Questions: 25 | |
| Created by: Supriya Thakkar | |
| Tags: General Knowledge GK History Competitive Exams GK Quiz UPSC SSC Bank PO Railways RRB Inventions & Discoveries Synonyms/Meanings |
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Who invented crescograph?
Who invented lift (Elevators)?
Who invented cosmic rays?
Who invented photograph?
Who invented sewing machine?
Who invented steam boat?
Who invented railway engine?
Who invented tank?
Who invented incandescent bulb?
Who invented steel melting process?
Who invented steam turbine?
Who invented sextant?
Who invented telegraphic code?
Who invented revolver?
Who invented seismograph?
Who invented transistor?
Who invented thermometer?
Who invented nylon plastic?
Who invented mauve dye?
Who discovered Kala-azar fever?
Who invented paint?
Who invented phonograph?
Who invented liquid oxygen?
Who invented cyclotron?
Who invented helicopter?