Air Conditioning Certification Bundled Exams with complete solution

sensible heat - Heat that causes change in temperature of a substance latent heat - Heat that is added with out a rise in temperature super heat - Heat added to refrigerant in vapor state after evaporation process is involute spirals - Scroll compressor moves refrigerant by means of convection -...

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 sensib...

Low airflow over a residential split system air conditioning evaporator can cause A: Liquid flood-back to the compressor B: A decrease in compression ratio C: An increase in suction line superheat D: Oil logging in the evaporator - Answer-A: Liquid flood-back to the compressor Which of the foll...

A system is supplied from the factory with charge of 5 pounds 10 ounces for a 15 foot line set. The line set is 25 feet long. The manufacturer's instruction sheet specifies 0.6 ounces of refrigeration to be added for each added foot of refrigerant line set length. What is the total refrigerant ch...

Heat which can cause a change in temperature of a substance is called; - Sensible Heat Heat added to a substance without a rise in temperature;(example: liquid refrigerant to gas) this process is called? - Latent Heat of Vaporization Heat added to the refrigerant in a vapor state after the evapor...

On which of the following laws of nature is the air-conditioning system based? - Answer-Heat flow, Heat absorption, Pressure and Boiling Points Which of the following statements is not correct? A. Refrigerant leaves the compressor as a high-pressure, high-temperature liquid. B. Refrigerant leave...

Heat which causes a change in temperature of a substance is called; - sensible heat. Heat which causes a change in state of a material without a change in temperature is called; - latent heat. Heat which is added to a vapor after the change of state occurs is called; - superheat. Heat can travel...

What is the movement of heat through space called? - Answer-Radiation A refrigerant release heat when - Answer-It condenses Why is it desirable for refrigerant in the suction line to be slightly superheated? - Answer-To insure liquid refrigerant does not enter the compressor A 30 pound cylinder ...

A faulty condenser fan motor on an air conditioning system will cause these symptoms..... - High suction pressure and high discharge pressure When connecting copper to steel the recommended brazing filler alloy is a... - 45 percent silver alloy A partially iced over evaporator can be caused by.....