HVAC contractor exam test 7 100% ACCURATE AND UPDATED!
How much heat is required to melt a 10 pound block of ice that is sitting at 32 degrees F into warm water given that the heating temperature is at 80 degrees F? - ANSWER1,920 Btu/h In many condensing unit applications, it is necessary to heat the compressor to evaporate liquid refrigerant trapped in the oil. Many large compressors for commercial applications are manufactured and equipped to handle this situation using a _________? - ANSWERCrankcase heater Find the MINIMUM size chimney required: A fan assisted Category 1 appliance with an input rating of 55,000 Btu/h is to be vented with a single wall connector into a masonry chimney that is 20 feet high with a 10 foot lateral. - ANSWERIt is not recommended that this appliance be connected tot his chimney Given that a motor compressor has a 2" bore and a 3" stroke, what would be the calculated piston displacement in cubic inches? - ANSWER9.4
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