Active direct systems use pumps and ____ sensors to circulate water from the collectors to the storage tank as needed.
A. wind
B. solar
C. water
D. temperature
Answer: D
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Which of the following devices does NOT rely upon the principles of electromagnetism to function?
A. Solenoid B. Headlight C. Relay D. Ignition coil
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Succesive approximation ADCs are faster than flash ADCs but slower than dual slope converters
Indicate whether the statement is true or false
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What is the inductance of a 20 mH inductor connected in parallel with a 50 mH inductor?
A) 50 mH B) 20 mH C) 14.3 mH D) 70 mH
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Electrical engineerswork with architects and structural engineers and are responsible for the design of lighting and communication systems.
Answer the following statement true (T) or false (F)
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