When charging a system that uses a zeotropic refrigerant, the system should be always be charged using
_____.
a. a charging cylinder
b. liquid refrigerant from the cylinder
c. vapor refrigerant from the cylinder
d. subcooling values
b
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When the entire surface is to be built up, whether it be the entire area of a plane or curved surface, several elements must be added to the surface symbol.
Answer the following statement true (T) or false (F)
A type of compressor that plumbers are not likely to encounter on the job is the _____.
a. axial compressor b. reciprocating compressor c. rotary compressor d. centrifugal compressor
How does mastitis cause economic problems for dairy farmers?
What will be an ideal response?
A continuous-time filter has a transfer function 
It is approximated by three digital filter design methods, matched z transform, direct substitution and bilinear z transform using a sampling rate 
= 2
What are the numerical pole and zero locations of these digital filters?