Inventions What Frank Whittle invented? Ethyl gasoline Sonar Radar Jet propulsion Ethyl gasoline Sonar Radar Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Vacuum cleaner Blender Washing machine Electric mixer Vacuum cleaner Blender Washing machine Electric mixer ANSWER DOWNLOAD EXAMIANS APP
Inventions What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent? Early Warning Telephone Electricity Television Early Warning Telephone Electricity Television ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1743 1760 1739 1785 1743 1760 1739 1785 ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Baby monitor Infant carrier Disposable diaper Bottle warmer Baby monitor Infant carrier Disposable diaper Bottle warmer ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Burglar alarm Pay telephone Automatic teller machine Time-lock safe Burglar alarm Pay telephone Automatic teller machine Time-lock safe ANSWER DOWNLOAD EXAMIANS APP
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