NATE HEAT PUMP ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

Content Preview

NATE HEAT PUMP ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed - Answer -6-7 psi or 6 degress F The primary purpose of using flux when soldering copper or brass parts is to prevent - Answer -Oxidation The water that results from a defrost cycle of an air to air heat pump (runoff) must drain off and away from the outdoor coil to prevent - Answer -Excessive ice build up The component used to reduce sound transmission and prevent water leaks of a packaged heat pump installed on a roof is the - Answer -Curb gasket When under a deep vacuum, a hermetic refrigeration compressor's motor windings could be ________ if energized - Answer -Damaged In order for an evacuation to be considered complete, a heat pump refrigerant circuit should be evacuated to a vacuum pressure of - Answer -500 microns or below A system is supplied from the factory with charge for a 15 foot line set. The data plate shows the required system charge to be 5 pounds 10 ounces. The line set uses a 3/8 inch liquid line and is 25 feet long. The manufacturer's instruction sheet specifies 0.6 ounces of refrigerant to be added for each added foot of refrigerant line length so the total refrigerant charge for the system would be - Answer -6 lbs(25-15=10 10x0.6=6oz 6oz+5lbs 10oz= 5lbs 16oz the equilvalent of 6lbs) Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com Drive slips are typically installed on the __________ sides of rectangular ducts - Answer -Shorter To properly set a heat anticipator it is necessary to check the - Answer -heating control circuit amperage draw A heat pump operating in normal ice free conditions maintains a certain temperature difference between the outdoor coil temperature and the surrounding outdoor ambient. This temperature difference is referred to as - Answer -Coil TD (temperature difference) The smallest refrigerant leak that an electronic leak detector should be capable of sensing is - Answer -0.05 oz. per year When checking the pressures in an operating system with a manifold gauge set, refrigerant oil in a hose will have ___ ______ on the gauge reading - Answer -No effect At sea level, a gauge pressure of 35 psig is equal to an absolute pressure of - Answer -49.7 psia A technician measures the return air temperature of a 100,000 Btu output furnace to be 65°F and the supply side air temperature is 135°F. The CFM would be - Answer -1323 (TD= 135-65=70 100,000/TDx1.08 100,000/75.6=1323) A residential supply diffuser that is noisy because of a loose vane is best serviced by - Answer -Replacing the diffuser When performing preventive maintenance on a heat pump the technician should check the outdoor fan to be certain that the fan - Answer -runs freely with no binding Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com