IN ITEMS 5-14 THROUGH 5-16, SELECT FROM COLUMN B THE FUNCTION OF EACH COMPONENT LISTED IN COLUMN A. A. Components 5-14. Subcooler 5-15. Receiver 5-16. Filter- drier B. Functions 1. Removes moisture and other contami- nants that may be in the liquid Freon 12 2. Ensures that the liquid Freom 12 will not vaporize prematurely after passage through the thermostatic expansion valve 3. Aids in determining whether servicing of the refrigerant unit is required 4. Ensures that the thermo- static expansion valve receives an adequate supply of liquid Freon 12 during peal load conditions 32 3-17. The flow of refrigerant to the outlet parts of the expansion valve is controlled by posi- tioning a metering valve pin₌ The position of this pin is determined by what factor? 1. Superheat spring setting only 2. Evaporator discharge pressure only 3. Pressure created by the remote sensing bulb only 4. The pressure created by the remote sensing bulb, super- heat spring setting, and evaporator discharge pressure 5-18. What part of the expansion valve is designed to ensure that the Freon 12 is in a gaseous state when it returns to the compressor? 1. The metering valve 2. The superheat spring 3. The inlet port 4. The equalizer port 5-19. An overcenter device installed in the evaporator header duct assembly--opens the louvers auto- matically and supplies cooling air to the avionics gear when which of the following conditions exist? 1. When the aircraft is on the ground and equipment cooling is required 2. When the aircraft is airborne and equipment cooling is required 3. When the aircraft is on the ground and a ground cooling cart is plugged into the aircraft for equipment cooling 4. When the aircraft is on the ground and equipment cooling is being changed from ground cart to aircraft cooling system 5-20. In which of the following system components does Freon 12 changes state  occur? 1. The compressor and the receiver 2. The condenser and the compressor 3. The evaporator and the condenser 4. The receiver and the evaporator