Larger tonnage refrigerant units use which kinds of chillers?
A) reciprocating and scroll compressor chillers B) scroll and centrifugal compressor chillers
C) centrifugal and screw compressor chillers D) reciprocating and screw compressor chillers
C
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During what season do mares begin to cycle?
a. Fall c. Winter b. Summer d. Spring
The minimum size of an equipment grounding conductor for feeder taps is determined
A. based upon the rating of the overcurrent protection at the load end of the feeder tap. B. based upon the ampacity of the tap conductors from Table 310.15(B)(16). C. based upon the ampacity of the feeder to which the tap conductors are connected. D. based upon the rating of the overcurrent protection on the supply side of the feeder conductor.
For long-term welding of materials that may produce toxic fumes, a welder should wear a full-face _____
a. HEPA-rated mask b. metal-fume filter c. compressed-oxygen mask d. supplied-air respirator
Why do you think there is a difference between these two groups?
What will be an ideal response?