Inventions What Benjamin Franklin invented? Hygrometer Barometer Bifocal spectacles Radio Hygrometer Barometer Bifocal spectacles Radio ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Time-lock safe Automatic teller machine Pay telephone Burglar alarm Time-lock safe Automatic teller machine Pay telephone Burglar alarm ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? C. Birdsey R. Scott F. Rozenosh G. Findus C. Birdsey R. Scott F. Rozenosh G. Findus ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Diner's Club Visa Discover MasterCharge Diner's Club Visa Discover MasterCharge ANSWER DOWNLOAD EXAMIANS APP
Inventions What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? VCR Calculator Microwave oven Remote control VCR Calculator Microwave oven Remote control ANSWER DOWNLOAD EXAMIANS APP