General Knowledge MCQs - Complete Course
DC Motor MCQs App & e-Book Download - 377
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MCQ: 377
First electric 'DC' motor was invented by
- Frank Julian Sprague
- Fran?ois Isaac de Rivaz
- George Stephenson
- Percy Spencer
a
General Knowledge App & e-Book Tests PDF Download
Solar Systems Test 388
Human Circulatory System Test 389
Atomic Theory Test 390
Personal Computer Test 391
Sun Facts Test 392
Greenhouse Effect Test 393
Equinoxes and Solstices Test 394
Earth Facts Test 395
Metamorphic Rocks Test 396
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General Knowledge MCQs eBook Download
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General Knowledge Quiz Questions
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