Inventions Who invented the battery? Alessandro Volta John Wilkinson James Hargreaves Thomas Edison Alessandro Volta John Wilkinson James Hargreaves Thomas Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Diner's Club MasterCharge Discover Visa Diner's Club MasterCharge Discover Visa ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1980s 1970s 1960s 1950s 1980s 1970s 1960s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Heater Electric Shaver Electric Drill Electric Fence Electric Heater Electric Shaver Electric Drill Electric Fence ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Pay telephone Time-lock safe Automatic teller machine Burglar alarm Pay telephone Time-lock safe Automatic teller machine Burglar alarm ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Michael Faraday Thomas Alva Edison Sir Alexander Graham Bell Alfred B. Nobel Michael Faraday Thomas Alva Edison Sir Alexander Graham Bell ANSWER DOWNLOAD EXAMIANS APP
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