Why are systems with fixed restriction metering devices critical to charge?
What will be an ideal response?
They cannot adjust to changing conditions and they have no liquid receiver to store extra refrigerant.
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The condensate drain on a rooftop unit:
A) Does not require a trap because of the short distance. B) Does not require any type of drain line. C) Must include a trap unless the unit has an integral trap. D) Is normally run through the curb to an inside drain connection.
The ratio of op-amp output voltage to input voltage with no feedback is called
A) 1output gain B) voltage gain C) open loop gain D) closed loop gain
The key to completing an isometric projection is the placement of the object in the glass cube so that the sides of the object are parallel to the sides of the cube.
Answer the following statement true (T) or false (F)
How much work is performed when a 30-pound sack is moved 100 feet in 2 seconds?
What will be an ideal response?