Hvac exam questions Study guides, Class notes & Summaries

HVAC EXCELLENCE EXAM QUESTIONS AND ANSWERS 100% PASS Heat which causes a change in temperature of a substance is called - Correct Answer ️️ -sensible heat, Heat added to a substance without a rise in temperature; (example: liquid refrigerant to gas) this process la called? - Correct Answer ️️ -latent heat Heat added to the refrigerant in vapor state after the evaporation process is called, - Correct Answer ️️ -superheat A scroll compressor moves refrigerant by means of; - Cor...

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

HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE What does a metering device do? - ANSWER The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - ANSWER Heat is absorbed in the evaporator. What happens in the evaporator? - ANSWER Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At...

HVAC Electrical Midterm Exam Questions and Answers All Correct _____ are the particles that orbit the core of an atom - Answer-electrons ______ is the force that pushes free electrons through conductors - Answer-voltage name 3 terms meaning voltage - Answer-electromotive force (emf) potential difference and eletrical pressure a device used to generate electricity is called a - Answer-voltage source name 6 voltage sources - Answer-battery, generator, solar cell, thermocouple, alter...

Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much less than the air test. - Answer B. Fitting shall be replaced or repaired and retested. UMC Section 1316.4.3 Every absorption refrigerating system supported from the ground shall rest on a concrete slab extending not less than _____ the adjoining ground level.(A) 3 inches below(B) 3 inches above (C) 6 inches below(...

HVAC electrical 2024 Exam Questions with Answers List what part (voltage source, switch, or load) is checked with the following meter function "VOLTAGE" - Answer-Voltage source, switch and load. AC electricity flows? - Answer-Both.....positive to negative and negative to positive. When electricity is present, which of the following are also present - Answer-Heat and magnetism What voltage is provided by the electric company to a modern residential home? - Answer-220VAC What are...

IFSTA Chapter 16 & 17 Exam | Questions and Verified Answers| 100% Correct Q: How can HVAC systems affect tactical ventilation? Select one: a. Cool the air in the fire room to weaken the fire's intensity b. Help extinguish the fire by changing the pressure in the structure c. Provide fresh air to ventilation crews d. Move products of combustion to unaffected areas Answer: Move products of combustion to unaffected areas Q: Why are buildings under construction more susceptible...

HVAC EXAM QUESTIONS AND ANSWERS 100% SOLVED GRADED A+ LATEST UPDATE 2024 Heat Transfer Moves from one substance to another as well as between molecules of a substance, temperature is the driving force Temperature The level of heat or heat intensity, measured with thermometers Heat Is the motion of molecules, and travels from a warm substance to a cold substance Conduction Energy travelling from one molecule to another, involves direct contact Radiation Passes through air and heats the ...

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 ...