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Basic HVACR 100 Final Exam Questions With Verified And Updated Solutions.

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Basic HVACR 100 Final Exam Questions With Verified And Updated Solutions. True or False: Refrigeration systems are designed to operate with only refrigerant and oil in the system - answerTrue Air contains three non-condensibles that are detrimental to the system - answerAir, nitrogen, moisture A compound guage is used to measure vacuum level - answerLow side/ blue gauge Molecular motion stops at what degree Fahrenheit? - answer-460 degrees The law of conservation states that energy can n...

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HVAC Exam Bundle With Verified Solutions.

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HVAC Exam Bundle With Verified Solutions.

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HVAC FINAL Exam Questions With Verified Solutions.

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HVAC FINAL Exam Questions With Verified Solutions. Which of the following would have the greatest effect on the heat content of the refrigerant? A) The refrigerant's humidity B) The refrigerant's state C) The refrigerant's temperature D) The refrigerant's pressure - answerCorrect Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: - answerRemoving heat from the room. The four types of cooling mechanisms are: - answerEvaporative, Thermoelectric, Ab...

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HVAC Journeyman Exam Questions With Verified Solutions.

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HVAC Journeyman Exam Questions With Verified Solutions. Three tons of air conditioning is equal to how many BTUs? - answer36,000 The liquid line size is _______. - answer3/8" The discharge line should feel _____ to the touch. - answerslightly warm The compressor should be on a level pad _____ inches above grade. - answer3 The electrical disconnect should be in direct line of sight and no more than ____ feet away from the compressor/condenser cabinet. - answer50 Insulation is wrapped aro...

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HVAC Exam Questions With Verified Solutions

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HVAC Exam Questions With Verified Solutions. Heat Transfer - answerMoves from one substance to another as well as between molecules of a substance, temperature is the driving force Temperature - answerThe level of heat or heat intensity, measured with thermometers Heat - answerIs the motion of molecules, and travels from a warm substance to a cold substance Conduction - answerEnergy travelling from one molecule to another, involves direct contact Radiation - answerPasses through air and ...

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Hvac Exam Questions With Verified And Updated Solutions.

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Hvac Exam Questions With Verified And Updated Solutions. The coolant bypass solenoid valve provides a second path for coolant to flow between the engine block and the: - answerThermostat housing The heater core is an air to liquid heat exchanger similar to a radiator. - answerfalse the 1.6l gtdi engine uses the no-flow coolant strategy in the engine block to: - answerBoth a and b on vehicles equipped with the auto start-stop feature, such as the 2014 fusion, the cabin heater coolant pump...

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HVAC Excellence Study Guide With Accurate Solutions.

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HVAC Excellence Study Guide With Accurate Solutions. Heat which causes a change in temperature of a substance is called. - answersensible heat. Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process is called? - answerLatent heat Heat added to the refrigerant in a vapor state after the evaporator process is called. - answerSuperheat A scroll compressor moves refrigerant by means of. - answerInvolute spirals The movement of heat by way o...

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HVAC Gas Heat Certification Exam With Verified And Updated Questions And Answers.

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HVAC Gas Heat Certification Exam With Verified And Updated Questions And Answers. A gas furnace is to be installed in a garage. The national standards require that the burners and ignition sources must be located ______ above the floor - answer18 inches A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is - answerTemperature on- temperature off Redundant gas valves used on gas furnaces have - answerDual gas shut off seats Burning one cubic foot of...

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HVAC/R Exam Questions With Verified And Updated Solutions.

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HVAC/R Exam Questions With Verified And Updated Solutions. Cold - answerThe absence of heat sensible heat - answerThe heat that can be measured with a thermometer. Heat energy that changes the temperature of a substance without changing its state. latent heat of fusion - answerThe heat required to change a solid to a liquid or vice versa at the same temperature, expressed in Btu per pound latent heat of vaporization - answerThe heat required to change a saturated liquid to a saturated va...

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Hvac-r Exam Questions With Verified And Updated Solutions.

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Hvac-r Exam Questions With Verified And Updated Solutions. A Coil - answerevaporator consisting of two coils joined together forming the shape of the letter A Absolute Humidity - answerthe actual amount of moisture in a given volume of air absolute pressure - answergauge pressure + atmospheric pressure absolute temperature - answertemperature measured from absolute zero absolute zero - answerThe coldest temperature, 0 Kelvin, that can be reached. It is the hypothetical temperature at whi...

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