Nate gas heating air - Study guides, Class notes & Summaries

NATE ICE Residential Gas Heat. Top Exam Questions & Answers. 100% Accurate. Verified The discharge of the bypass humidifier is installed: - -in the return air duct The first stage of a two-stage gas furnace permits: - -reduced CFM and shorter burner on times. The purpose of the International or National Fuel Gas Code is to: - -provide the minimum safety requirements for the installation of fuel gas appliances To determine the heat anticipator setting on an electromechanical thermos...

ACCA Manual J correct answers Manual for accurate residential load calculations A.F.U.E. correct answers Annual Fuel Utilization Efficiency Dampers correct answers Control supply airflow to each zone Separate and independent systems correct answers Condition air in each zone Thermostat correct answers Set to medium high blower speed for air balancing check Electromechanical thermostat correct answers Similar to electronic programmable thermostat Mercury bulb thermostat c...

Nate Gas Furnace Service questions and answers| verified What precautions, if any, must be taken when installing a gas furnace on a wooden platform in an attic? Use a zero-clearance furnace or add a non-combustible base A vent connector should have a as few elbows and joints as possible to: Reduce resistance of flue gases The gas control valve may be damaged if exposed to an inlet pressure above 14in wc To which thermostat is leveling the most critical: Mercury Bulb ...

NATE Final Exam #2, question and answers with rated solutions A condensing unit should be mounted on a slab that is level to: A: Allow any accumulated water to evenly run out of the cabinet B: Increase airflow through the fin area C: Prevent the unit from tipping over D: Make certain any top discharge air blows straight up A A simple time-activated switch is an example of a control that does not use: A: Feedback B: Electronics C: Calibration D: Manual adjustment ...

NATE Heat Pump Exam, questions with complete solutions Charging a heat pump with refrigerant is best accomplished in the _______ mode. A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the heat pump more efficient? A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode A: Heating mode Which of the followi...

NATE Gas Heat Practice Guide 100% accurate, latest updated What precautions are required when mounting any gas furnace on a wood platform in an attic? None The gas control valve may be damaged if exposed to an inlet pressure above what? 14 inch W.C. How many elbows and joints should a vent connector have? As few as possible to reduce resistance of flue gases. Under what conditions, if any may the technician route the exhaust of the furnace into the exhaust vent of the wa...

NATE Core (2022/2023) with Certified Solutions Class A Ordinary Extinguisher Class B Liquid Extinguisher Class C Electrical Extinguisher Asphyxiation causes what? Nausea, Dizziness, Heart Irregularities, and Unconciousness Ladder must be at what dimensions in relation to a house? 4 ft for every 1 ft, 3 ft above the top of the roof. What different amounts does Copper Tubing come in? 25, 50, 100 Soft drawn copper tubing means what? Copper tubing that is on a roll Hard drawn copper tubing me...

NATE Gas Heating Exam, questions with complete top solutions Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% C: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% D: 110% B: 90%...

HVAC NATE Heat Pump, questions and answers with complete top solutions On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? 6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? Prevent 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. Why must the runoff be drained off and away...

NATE Gas Heating Exam question and answers 2023Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% C: 78% Many pre-1992 furnaces have efficiencies around _______. A: 10% B: 40% C: 60% D: 80% C: 60% Today, furnaces with AFUE ratings greater than _____ are available. A: 85% B: 90% C: 100% D: 110% B: 90% A therm...