Multiple Choce Questions based on science
Science MCQs - Practice these questions and improve your knowledge
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Q 141. What James Watt invented?
a) Steam boat b) Rotary steam engine c) Diving bell d) Hot air balloon
Q 142. What Elisha Otis invented?
a) Turbine b) Elevator c) Escalator d) Jet engine
Q 143. Benjamin Franklin was a prolific inventor, He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on, Among his many other inventions, what musical instrument did he invent?
a) Clarinet b) Harmonium c) Banjo d) Oboe
Q 144. What George Pullman invented?
a) Airship b) Air brakes c) Box car - railway d) Sleeping - railway car
Q 145. What Benjamin Franklin invented?
a) Hygrometer b) Barometer c) Bifocal spectacles d) Radio
Q 146. What Henry Bessemer invented?
a) Steel Converter b) Electroplating c) Aluminum d) Steel rolling mill
Q 147. What invention was first installed at a Hartford, Connecticut bank in 1889?
a) Time-lock safe b) Burglar alarm c) Automatic teller machine d) Pay telephone
Q 148. What does EPROM stand for?
a) Every Person Requires One Mind b) Evaluable Philotic Random Optic Memory c) Electric Programmable Read Only Memory d) Erasable Programmable Read Only Memory
Q 149. What does AM mean?
a) Angelo marconi b) Anno median c) Amperes d) Amplitude modulation
Q 150. What frequency range is the High Frequency band?
a) 3 to 30 MHz b) 100 kHz c) 1 GHz d) 30 to 300 MHz