Why is knowledge regarding the recovery level for Type II systems with 200 lb or more of R-22 not important for most technicians?
A) Enforcement rates for recovery levels are low. B) Few systems are this large.
C) Type II recovery levels are optional by law. D) Few systems are this small.
B
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The appearance of a properly applied second coat of gel looks like:
What will be an ideal response?
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For which substance would the particle density equal the bulk density?
A) a wet soil B) a well-aggregated surface soil C) an organic soil D) a quartz pebble E) a soil clod
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The _____ of a harmonic refers to the phasor rotation with respect to the fundamental waveform.?
A. ?name B. ?frequency C. ?sequence D. ?magnitude
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