In an inductive AC circuit, when the applied voltage is at its maximum negative value, the current is _____.

a. zero
b. increasing toward maximum positive
c. at the maximum negative value
d. at the maximum positive value


a. zero

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As cities grew, heavy or ____________________ horses were used to haul cargo, distribute goods produced in urban factories, and pull wagons that advertised a business's product.

Fill in the blank(s) with the appropriate word(s).

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Find the hardness of the following groundwater for the well water sample from a well in Pennsylvania, as assigned by your instructor.



What will be an ideal response?

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How can refrigeration companies prevent customers from health department violations?

a. Respond immediately to their customers’ service request. b. Use only certified and experienced service technicians. c. Keep their customers’ equipment in good condition with a service contract.

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Two technicians are discussing vacuum brake boosters. Technician A says that a low, soft brake pedal is an indication of a defective booster. Technician B says that there should be at least two power-assisted brake applications after the engine stops running. Which technician is correct?

A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B

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