TSSA G2 Practice Questions (17-24) Exam Solved 100% Correct!!

(24) What standards are directly relevant to air handling equipment? - CSA F280 and CSA F326 (24) What is the national non-profit for HVAC-R? - HRAI (24) What it the term used for insulating value? - R value or RSI-value (metric) (24) What is U-Factor? - Conduction factor - the amount of heat that flows through a building component because of temperature difference (24) What is Sensible Heat? - Heat that changes the temperature of a substance without changing it's state (24) What is Latent heat? - Heat required to change the state of a substance without changing its temperature (24) What is Total Heat (Enthalpy)? - The sum of all latent and sensible heat contained in a substance when heat is being transferred (24) What is Specific Heat? - Specific Heat is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature. (24) What is the energy content of one BTU? - The amount of energy required to raise one pound of water One degree Fahrenheit (24) What is the specific heat of air? - 0.2417 BTUs (Imperial) or 1.01 KJ (Metric) (24) When and how dose conduction occur? - Conduction occurs when there is a temperature difference on two sides of a material and heat flows towards the cooler area(24) How many Btu/h of heat are removed by one ton of refrigeration? - 12,000 Btu/h