Technician A says that a properly functioning LED light should produce mostly light energy from the electrical energy it consumes. Technician B says that light systems that produce the least amount of heat are the most efficient. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: C
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Answer the following statement true (T) or false (F)
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Answer the following statement true (T) or false (F)
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A(n) ______will display the service condition of a battery.
A. conductance tester B. hydrometer C. volt meter D. ammeter
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Single-phase AC power is used:
A) Only in commercial buildings. B) In both residential and commercial buildings. C) Only in Europe. D) Only in residences.
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