Solve the proportion for the unknown term (x): 18.9/5.4 = 21/x.
What will be an ideal response?
Answer: 6
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As you are thinking about the assignment of tasks, what questions should you ask yourself?
What will be an ideal response?
An AC sine wave with an RMS value of 120 V is connected to a full wave rectifier. What is the average DC voltage?
a. 70.7 b. 108 c. 120 d. 169.7
Why are thermostatic expansion valves often used as the outdoor metering device for the heating cycle?
A) TEVs are easier to install on the outdoor coil. B) The TEV can modulate the refrigerant flow over the wide range of temperatures experienced in the heating mode. C) TEVs allow the system pressures to equalize in the off cycle, allowing the use of low starting torque compressors. D) TEVs can be adjusted in the field to match the heat pump's performance with the climate it will be operating in.
How frequently do all rows in a 2118 dynamic RAM need to be refreshed?
A) every millisecond B) every 50 milliseconds C) every 2 milliseconds D) every second