EPA Section 608 rules require capture of 80% of the HCFCs and HFCs from a small appliance sealed system with a non-operating compressor if technicians are using; A) a system-dependent (passive) process. B) a self-contained (active) process. C) either a passive or an active recovery process. D) neither recovery process.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.