HVC140-Week 4 Exam A Name Date Instructor MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) This symbol represents: 1) A) Three phase motor. B) Compressor with internal overload. C) Transformer. D) Single phase motor. 2) Which diagram types are most useful for understanding the operating sequence of the unit? 2) A) Schematic B) Component location C) Pictorial D) Ladder 3) This symbol represents: 3) A) Heating thermostat. B) Cooling thermostat. C) Close on rise pressure switch. D) Open on rise pressure switch. 4) Installation wiring diagrams are used for: 4) A) Showing unit operational sequence. B) Showing the location of necessary field wiring. C) Location of all electrical components. D) Tracing individual circuits. 5) How is field wiring shown on most diagrams? 5) A) In red B) With solid lines C) In blue D) With dashed lines