Inventions The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name? John Christopher Baxter John Christopher Ballantyne Joseph Cyril Bamford Jack Croxford Baker John Christopher Baxter John Christopher Ballantyne Joseph Cyril Bamford Jack Croxford Baker ANSWER DOWNLOAD EXAMIANS APP
Inventions What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? Remote control Microwave oven Calculator VCR Remote control Microwave oven Calculator VCR ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1880s 1800s 1890s 1900s 1880s 1800s 1890s 1900s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1980s 1960s 1940s 1950s 1980s 1960s 1940s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1760 1743 1739 1785 1760 1743 1739 1785 ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Giuseppe Mercalli Joshua Rumble Charles Richter Hiram Walker Giuseppe Mercalli Joshua Rumble Charles Richter Hiram Walker ANSWER DOWNLOAD EXAMIANS APP
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