The expansion device Study guides, Class notes & Summaries

ESCO Light Commercial Refrigeration EXAM with Complete Solutions In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: ️️ The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at theevaporator outlet is known as: ️️ An expansion device that is stuck open will cause: ️️ When measuring evaporator superheat on a commercial system that has a long su...

Real Asvab Test 121 Questions with Verified Answers A square has how many sides? - CORRECT ANSWER 4 How much is 2 plus 2? - CORRECT ANSWER 4 A rose is a what? - CORRECT ANSWER A flower What is the best explanation of how a smooth round stone became smooth? - CORRECT ANSWER It was in a stream for a long time If you place bean seeds between moist paper towels and watch the stem leaves appear you will see a demonstration of? - CORRECT ANSWER germination Any astronomical body that ...

ESCO Light Commercial Refrigeration EXAM 2024/2025 with Complete Solutions. In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: A. operate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - Answer - A. operate at high efficiency. The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at t...

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS LATEST UPDATE 2024 Two basic categories of chillers are the ___. a. Compression cycle and absorption b. purge and absorption c. absorption and lithium bromide d. purge and lithium bromide - Correct Answer a. Compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, _____, and ventilation. a. circulation b. velocity c. . d. none of the above - Correct Answer a. circulation T...

All of the following are compiled languages except for: Javascript BASIC Java C++ -ANSWER Javascript Which of the following statements best describes the difference between information systems and information technology? There is no difference between information systems and Information Technology. An information system does not have to use computer hardware; whereas information technology requires the use of hardware and software. Information Technology is a broader concept and i...

HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE What does a metering device do? - ANSWER The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - ANSWER Heat is absorbed in the evaporator. What happens in the evaporator? - ANSWER Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At...

There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG correct answer: 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures correct answer: 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and one grounding conductor and on...

the state of the refrigerant entering the metering device is? - Answer A subcooled high pressure liquid. what type of refrigerant is used in VERY high-pressure appliances? - Answer R-503 what type of refrigerant is used in MEDIUM pressure appliances? - Answer R-500 what type of refrigerant is used in HIGH pressure appliances? - Answer R-410A and R-22 what device is located at the END of the liquid line? - Answer The expansion device. what type of refrigerants are the LEA...

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS Two basic categories of chillers are the compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation circulation The primary function of an expansion device is to produce a reduction in the pressure on the liquid refrigerant, regulate the flow of refrigerant into the evaporator, lower the boiling point of the refrigerant far enough below the temperature of the load to g...

identify two safety issues that you must make sure of prior to opening the engine compartment access doors - -The engine is shut down -there is sufficient clearance to open the compartment access doors The CTIS equipped on an ARFF apparatus can be used: - When the apparatus is moving or stationary During the expansion and drainage test note and record the level of accumulated solution in the bottom of the cylinder every: - 30 seconds When performing the Handline nozzle test you must dis...

5 components of an information system 1. Hardware 2. Software 3. Data 4. Procedures 5. People Examples of hardware desktop computers laptop computers mobile phones tablet computers e-readers storage devices, such as flash drives input devices, such as keyboards, mice, and scanners output devices such as printers and speakers Less traditional, but becoming more computerized: automobiles refrigerators beverage dispensers digital device Devices that processes electronic si...