What is the purpose of a chiller economizer?
A) to use outdoor air for cooling
B) to subcool the liquid refrigerant before it enters the chiller
C) to limit the compressor current draw
D) to superheat the liquid refrigerant before it enters the chiller
B
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?What type of ATV is outselling other types in most North American markets?
What will be an ideal response?
When checking hydrants to ensure their effectiveness, firefighters should look for all of the following conditions except:
A. obstructions erected near the hydrant that interfere with its operation. B. outlets facing the proper direction with sufficient clearance to the ground. C. components not damaged and all parts operating properly. D. the Post Indicator Valve is fully closed.
Character special files are used by input/output devices for communicating one character at a time, providing what is called ____ data.
A. raw B. binary C. ASCII D. block
The operating characteristics of a wound rotor motor with the rotor leads shorted together are very similar to those of a(n) ____________________ motor.
Fill in the blank(s) with the appropriate word(s).