Inefficiency of a motor due to heat dissipation is the result of which type of physical motor losses?

What will be an ideal response?


copper losses
mechanical losses (friction)

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Nippon Steel’s expenses for heating and cooling a large manufacturing facility are expected to in­crease according to an arithmetic gradient begin­ning in year 2. If the cost is $550,000 this year (year 0) and will be $550,000 again in year 1, but then are estimated to increase by $40,000 each year through year 12, what is the equivalent annual worth in years 1 to 12 of these energy costs at an interest rate of 10% per year?

What will be an ideal response?

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The MAP sensor is used by the PCM to diagnose the ________ system

A) O2 sensor B) EGR C) AC D) Injector

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Technician A says that Ohm's law can be used to determine circuit current flow if total circuit resistance and total voltage are known. Technician B says that Ohm's law can be used to calculate the unknown resistance of a load in a circuit if total current and source voltage are known. 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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What is the last step in the operational sequence of the typical oil-fired furnace?

A) The indoor blower turns off. B) The flame shuts down. C) The heat exchanger cools. D) The fan switch contacts open.

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