Which of the following statements pertains to wiring procedures for split systems?
A) You connect wires of the same colors to wire split-system heat pumps.
B) Wires of an indoor blower and outdoor condensing unit share a power circuit.
C) Split systems require two power circuits and two wire bundles.
D) You connect the two green wires to energize the fan.
C
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An RL parallel circuit is a circuit with branches containing resistance and ____.
A. capacitance B. hysteresis C. voltage D. inductance
The injection fluid used in hydrofracking consists of ____
a. aerobic bacteria and water c. chemicals, sand, and water b. fertilizer and water d. water only
How many centimeters are there in one meter?
A. 10 B. 100 C. 1000 D. 2.54
What is the operating principle of glass stem thermometers?
A) The refractive properties of the glass stem change with temperature, making the fluid level appear higher at higher temperatures. B) The fluid inside the thermometer boils as it is heated, causing the liquid level to rise. C) The fluid climbs the walls of the tube through capillary attraction, which works better at higher temperatures. D) Expansion and contraction of the fluid makes the liquid level rise and fall with temperature.