Btuh - Study guides, Class notes & Summaries

HVAC NATE Heat Pump Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: What is the absolute pressure at sea level if a gauge pressure is 35 psig? Answer: 49.7psia Q: 100,000 BTUH output furnace. Return air temp is 65F. Supply air is 135F. What is the CFM? Answer: 1323CFM Q: What is the best method of repair when a residential supply diffuser is noisy because of a loose vane? Answer: Replace the diffuser. Q: When...

NATE Exam: Core Test Refresher Questions and Answers (Graded A) Calculate the air volume based upon these conditions: 90,000 BTUH output Return air temperature: 70F Supply air temperature: 110F a. 1,158 CFM b. 1,500 CFM c. 1,800 CFM d. 2,083 CFM - ANSWER-d (2,083 CFM)

NATE Heat Pump Exam Questions 100% Correct Solutions New Update 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 - Answers - 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 - Answers - A: Hea...

G2 Exam Quiz Bank (2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: The STACK EFFECT in a water heater is usually caused by Answer: Short draws of water from the heater Q: A 120v power supply for a residential electrical circuit is taken from the Answer: - Load side of one branch circuit breaker and a neutral lug Q: The minimum allowable distance to be maintained from a 50,000 btuh water heater flue outlet gas regulator Answer: 3' ...

to determine the indicated gas pressure on a water-filled "U" tube manometer A) read the amount of water column displaced on the pressure side B) read the amount of water column displaced on the atmospheric side C) read the amount of water column displaced on the pressure side and ADD it to the amount displaced on the atmospheric side D) read the amount of water column displaced on the pressure side and SUBTRACT it from the amount displaced on the atmospheric side - ANSWERC By ...

Gas Technician G2 License Test Questions and Answers Verified 100% An inline Ammeter is connected Ans- In series with the device being checked As the length of an Electrical run increases, it may be necessary to Ans- Increase the Wire Size Fuses serving motor circuits should be of Ans- Time Delay Type Millivolt wiring should be isolated from Line Voltage Wiring because Ans- The Line Voltage will induce a voltage into the Millivolt Wiring Which tool is used to determine if t...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above - Answer-d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% d. +30% - Answer-c (+15%) The maximum sensible cooling capacity of a heat pump shou...

3' - ANSWERWhen installing a listed central heating furnaces, and the installation instructions requires you to maintain 6" clearance from the supply air plenum to combustibles, the supply air ducts connecting to the plenum should also maintain the 6" clearance for what minimum distance from the plenum? 211 - ANSWERMasonry chimneys should be built and installed to NFPA code___________ 5% - ANSWERWhat is the lower flammability list limit for natural gas? 6" - ANSWERWhat is th...

HVAC NATE Heat Pump/ 171 Q&A/ Already Graded A+ Terms like: What is the absolute pressure at sea level if a gauge pressure is 35 psig? - Answer: 49.7psia 100,000 BTUH output furnace. Return air temp is 65F. Supply air is 135F. What is the CFM? - Answer: 1323CFM What is the best method of repair when a residential supply diffuser is noisy because of a loose vane? - Answer: Replace the diffuser. When performing preventive maintenance on a heat pump what should the technician check ...

1kwh of electric power is equivalent to ___ btu per hour. A. 3142 B. 6412 C. 9412 D. 6812 o :## A Gas valves operate at ____ voltage. A. 120v B. 230v C. 24v D. 12v o :## C What will be the resistance in the circuit if the supply voltage is 30v and current flowing through the circuit is 5A. 2024/2025 2 | P a g e A. 3 ohms B. 1/3 ohms C. 1/6 ohms D. 6 ohms o :## D Furnaces are placed into categories based upon. A. Venting characteristics B. Btuh capacity range C. Total airf...