A compressor that uses an offset rolling piston that seals against a blade that remains stationary and moves in and out of its slot to seal against the rolling piston is a:
A) Reciprocating compressor. B) Stationary blade rotary compressor.
C) Rotary screw compressor. D) Rotary blade rotary compressor.
Question 2
A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called:
A) Slush. B) Propylene glycol. C) Hydraulic fluid. D) Brine.
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