Study guides, Class notes & Summaries

Furnace - ANSWER The air flow on most structures that use a fossil fuel for a heat source have a___that would be used as an air supply. Control loop - ANSWER Almost all control systems use a___to control the temperature with in a given structure, space, or zone. Troubleshooting - ANSWER A___chart is a graphical representation of a troubleshooting procedure for a particular unit. Overload - ANSWER A___is an electrical device that protects a load from a high ampere draw by breaking a set ...

HVAC Test with Complete S Second hand smoke - Answer-ETS Drain pan - Answer-"A" Coil Orfice - Answer-TXV capillary 98.6 - Answer-body temperature Wet-bulb depression - Answer-Wet-bulb and dry-bulb called 8'F - Answer-Elf the drywall temperature is 76 fahrenheit in a wet bulb temperature is 68 Fahrenheit with depression is 100% - Answer-When a dry rub and wet bulb temperature are the same they related to human of the air is Enthalpy - Answer-Of air is the measure of hea...

HVAC Study Questions with Correct A Which of these heating methods is most commonly used as a heat source in cold climates? - Answer-Natural gas furnaces Which of the following is a device used to maintain indoor air quality? - Answer- Ultraviolet light The purpose of an evaporator in the refrigeration cycle is to - Answer-transfer heat from the air to the refrigerant Heat can be transferred from a refrigerant to the outdoors on a hot day because the - Answer-refrigerant is warmer t...

HVAC FINAL EXAM QUESTIONS AND ANSWERS ALL CORRECT.docx 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 - Correct Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: - Removing heat from the room. The four types of cooling mechanisms are: - Evaporative, Thermoelectric, Absorption, Mecha...

HVAC Exam Questions with Correct A What is the difference between the Oxygen we breath and the ozone in the earths stratosphere - Answer-Ozone is a form of oxygen, with each molecule consisting of three atoms of oxygen O3 , The oxygen we breath contains two atoms, O2 Describe the difference between good and bad ozone - Answer-Good Ozone like the stratosphere protects the earth from harmful ultraviolet rays from the sun, Bad Ozone, Like the Troposphere is considered unwanted ozone because it ...

HVAC Exam Questions with Correct All A An electric heating unit in a duct system is classified as a - Answer-forced draft convector Radiant heat is transferred by? - Answer-infrared rays The limit switch is used on the electric element assembly to - Answer-open the circuit to the element if the furnace overheats Technician "A" says that a fusible link can be jumped out temporarily to allow the customer to get heat until the next business day. Technician "B" says that if the fuses...

HVAC Exam Questions with All Correct A The refrigerant in a condenser in a refrigeration system . - Answer-rejects heat The condenser in a refrigeration system . - Answer-Answer: All of the above A normally operating water-cooled condenser is operating with a 10°F differential between water in and water out. If scale forms on the water tubes and the entering water is 85°F, which of the following is possible? - Answer-d. Both a and b are correct. a. The outlet water temperatur...

Hvac Journeyman Exam QUESTIONS AND ANSWERS BEST Attained Grade A+ GUARANTEED SUCCESS LATEST UPDATE 2024 / 2025

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HVAC Contractor prep Test 2 QUESTIONS AND ANSWERS BEST Attained Grade A+ GUARANTEED SUCCESS LATEST UPDATE 2024 / 2025

Electric Heat ESCO - HVAC Excellence Exam Questions and Answers 100% Pass Before working on an electric furnace the tech should - Correct Answer ️️ -Review diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker - Correct Answer ️️ -detects current leaks to groound the conductor in an electric heat element is usually made of - Correct Answer ️️ - Nichrome An example of resistive load is - Correct Answer ️️ -crankcase heater an examp...