270 Unit 26 REVIEW TEST Name Date Grade Circle the letter that indicates the correct answer. 1. Remote condensing units for reach-in refrigeration units may consist of A. the evaporator and condenser. B. the evaporator and metering device. C. the compressor and evaporator. D. a condenser and one or more compressors manifolded together. 2. An advantage in using one compressor for several refrigeration units is A. that the compressor and evaporator are located near each other. B. the compressor is larger and more efficient. C. that one expansion valve can be used. D. that compressor cycling is easier. 3. If four compressors were manifolded together (parallel compressor system) to serve 12 refrigera- tion cases, they would have the responsibility of providing the suction pressure necessary for A. the coldest-temperature evaporator. B. the medium-temperature evaporator. C. the warmest-temperature evaporator. D. a single thermostatic expansion valve. 4. When multiple evaporators are used with different temperature requirements, an evaporator pressure regulator must be used on A. all evaporators. B. only the lowest-temperature evaporators. all but the lowest-temperature evaporators. D. only the highest-temperature evaporators. 5. When hot gas is used with remote condensing units for defrost with low-temperature refrigera- tion, the hot gas is piped A. to the evaporator from the receiver. B. from the compressor discharge line. C. from the evaporator to the receiver. D. to the EPR from the receiver. 6. The heat used in a heat reclaim system comes from the A. compressor discharge line. B. condensing unit. C. liquid line. D. compressor motor housing. 7. Refrigerated shelves often use A. plate-type evaporators. B. cooling from the liquid line. C. refrigerant piped from the CPR. D. remote EPR valves. 8. The sweat from surfaces around doors in display cases is normally A. evaporated with hot discharge gas. B. removed by exposure to the condenser fan. kept from forming with mullion heaters. D. kept from forming with air currents from the evaporator fan. 9. Precharged tubing with quick-connect fittings is called A. a ready-charged set. B. ABS tubing. C. type L tubing. D. a line set. 10. The advantage of one large compressor for several refrigerated cases is A larger motors are more efficient. B. larger motors last longer. C. larger motors are quieter. D. larger motors are less expensive to buy