How does a two-step scroll compressor achieve capacity reduction?
What will be an ideal response?
A rotating internal plate opens and closes two drilled ports in the scroll. When these two ports are open, refrigerant exits the scroll in the first compression chamber.
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The ________ is/are used when compact, high-thrust actuators are required
A) pneumatic piston B) cylinder and diaphragm C) spring and cylinder D) spring and diaphragm
Give two examples of two-dimensional antennas. Describe them.
What will be an ideal response?
One thing that some VRF systems can do that common ductless systems cannot do is _____
a. provide heating and cooling to different areas at the same time b. operate as a heat pump c. operate in a dehumidification mode d. respond to a schedule from a programmable thermostat
Design an experiment to test the hypothesis you have written
What will be an ideal response?