NATE Exam: Air Conditioning and Heat Pumps Question with correct Answers
NATE Exam: Air Conditioning and Heat Pumps Question with correct Answers 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 should be within ____% of the calculated sensible heat gain of a structure with a large heating load. a. ±10% b. +15% c. -25% d. +25% - ANSWER-d (+25%) The combined output of a heat pump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. a. 10% b. 15% c. 20% d. 25% - ANSWER-b (15%) What amount of auxiliary electric heat is needed when the output of a heat pump on a design day equals 18,800 Btuh and the heat loss of a home is 29,700 Btuh? a. 2.1 kWh b. 3.2 kWh c. 5.0 kWh d. 10.9 kWh Note: 3,413 Btu/kW - ANSWER-b (3.2 kWh)
Información del documento
- Subido en
- 9 de enero de 2023
- Número de páginas
- 19
- Escrito en
- 2022/2023
- Tipo
- Examen
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