Spray ponds on rooftops have made a comeback in the last few years because they cool the roof and reduce the solar load on the structure.
Answer the following statement true (T) or false (F)
True
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What type of battery uses two different electrolytes?
A) Sodium-metal chloride B) NiCD C) Lead-acid D) Potassium phosphate
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Explain why you should zero an analog type ohmmeters every time you change scales or make a measurement
What will be an ideal response?
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The most commonly used digital bit pattern and the one most commonly used in the communications network is the:
A) BPRZ wavef B) unipolar waveform C) BPNRZ waveform D) all are used equally
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If three 75 W lamps are connected in parallel across a 125 V source, IT equals ________
A) 18 A B) 180 mA C) 1.8 A D) 18 mA
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