The first Mechanical Calculating Machine was invented by: A) William Oughtred B) Gottfried W. Leibniz C) Blaise Pascal D) Charles Babbage Related MCQs: A relay is superior to a mechanical switch because it If in a synchronous motor, driving mechanical load and drawing current at lagging power factor from the constant voltage supply, its field excitation is increased, then its power factor Which of the following part in used for calculating and comparing? Deferred tax payments would be shown as ……. while calculating net cash flows: