Automotive HVAC Final study set questions & Answers

Which unit contains a desiccant to remove moisture from the system? - ANSWER Receiver dryer and Accumulator In a piston type compressor, the pistons are driven by what? - ANSWER Swash plate, Crankshaft or Wobble plate (All of the Above) The basic design of compressors include what? - ANSWER Piston, Vane and Scroll The Wobble plate is moved to the high angle position for max output when the cooling load is high (True or False) - ANSWER True The wobble plate angle is controlled by the pressure in the crankcase of the compressor (True or False) - ANSWER True A compressor speed (belt lock) sensor is used by the HVAC ECM to? - ANSWER Prevent a locked up compressor from breaking the drive belt, Compares compressor speed with engine speed (Both A and B)