What do the rungs on a ladder diagram represent?
A) The circuit loads
B) The individual circuits
C) The line voltage power
D) The rungs on each ladder diagram stand for something different.
B
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Explain the difference between a linear power supply and a switch-mode power supply
What will be an ideal response?
RC integrators can be used to convert a repetitive pulse waveform to a constant dc voltage equal to the average voltage of the waveform if:
A) ? is five times tW. B) ? is very small compared to tW. C) ? is equal to tW. D) ? is very large compared to tW.
What is the heat output of an electric furnace rated at 15 kilowatts on 240 volts?
A) The heat output cannot be calculated using the kilowatt output. B) 15 kW × 240 = 36,000 BTU/hr C) 15 kW × 3,412 = 51,180 BTU/hr D) 15 kW × 1,000 = 15,000 BTU/h
The bearing failure that is evidenced by a rolling element track in the raceway is _____
A) misalignment B) brinelling C) thrust failure D) fatigue