Inventions What James Watt invented? Rotary steam engine Diving bell Steam boat Hot air balloon Rotary steam engine Diving bell Steam boat Hot air balloon ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Fence Electric Heater Electric Drill Electric Shaver Electric Fence Electric Heater Electric Drill Electric Shaver ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention caused many deaths while testing it? Ladders Race cars Dynamite Parachute Ladders Race cars Dynamite Parachute ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? C. Birdsey R. Scott G. Findus F. Rozenosh C. Birdsey R. Scott G. Findus F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? Lewis Edson Waterman Charles Kettering George Fountain Sir William Grove Lewis Edson Waterman Charles Kettering George Fountain Sir William Grove ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Rubber boot Pneumatic rubber tire Automobile wheel rim Model airplanes Rubber boot Pneumatic rubber tire Automobile wheel rim Model airplanes ANSWER DOWNLOAD EXAMIANS APP
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