Who invented the centrifugal governor and the crank/throw principle?

A. Leonardo da Vinci
B. Rudolf Diesel
C. Nikolas Otto
D. James Watt


Answer: D

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The purpose of the defrost cycle in a heat pump is to _____.

a. warm the unit circuits for optimum electrical operation b. prevent ice buildup on the indoor coil c. prevent ice buildup on the outdoor coil d. remove frost buildup throughout the system ductwork

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Calculate the voltage drop of a 120/240-volt, three-wire underground residential service installed with 2 AWG aluminum URD cable if the load is 80 amperes and the one-way length of the underground service conductors is 100 feet.

What will be an ideal response?

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Regardless of the breed, all livestock and poultry breeders should strive for superior

breeding stock and concentrate upon improvement through sound genetic principles and practices. A. True B. False

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Which of the following represents the correct mixture proportions required of the electrolyte in a lead acid battery?

A. 64% sulfuric acid, 36% distilled water B. 36% sulfuric acid, 64% distilled water C. 100% sulfuric acid D. 100% distilled water

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