Hvac exam questions - Study guides, Class notes & Summaries

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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...

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 Electricity Exam Questions and Answers Latest 2024/2025 (GRADED A+) how much resistance must be placed in 120V curcuit in order to limit the current to 2Amps - ANSWER 60 Ohms when current flows in a 2 wire circuit such as 120v, if a clamp on amp meter is clamped around both wires what measurment would you expect. - ANSWER 0 amps - due to cancellation of 2 fields Current flow is? - ANSWER The flow of electrons in the circuit. What is the symbol for impedence in an AC CIrcuit. - ANSWER ...

The man whose work is considered the real beginning of the science of air-conditioning _____. - Answer-Willis Carrier Psychrometry refers to the relationship between _____ and _____. - Answer-Humidity; air The amount of moisture in the air compared to how much it can hold is _____. - Answer-Relative humidity The human bodies well being depends upon the _____. - Answer-Bodies metabolism The device used to determine the moisture content of air is the _____ - Answer-psychrometer Of t...

_____, _____, _____ & _____ is the refrigeration cycle? - Expansion; evaporation; compression & condensation A 230 volt PFC compressor tries to start at 184 volts and trips on overload protection, the starting torque of the motor is _____? - Decrease by lower voltage A A/C system with zone control is obtained by mixing hot and cold air at the central unit in response to room thermostats is a _____ system? - Multi-zone A diulating switch is used to _____. - Change proportional action to two...

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BOMA-HVAC EXAM QUESTIONS AND ANSWERS 100% SOLVED In an A/C system where air comes from both a hot duct and a cold duct that is supplied from a mixing terminal is called A dual duct system An A/C system in which the zone control is obtained by mixing hot and cold air at the unit in response to a room thermostat is called a Multizone system Heating and cooling load calculations take the _______________ into consideration. Sensible heat and latent heat Which of the following does not p...

HVAC Electricity – Exam Questions and Answers Latest 2024/2025 (GRADED). how much resistance must be placed in 120V curcuit in order to limit the current to 2Amps - ANSWER 60 Ohms when current flows in a 2 wire circuit such as 120v, if a clamp on amp meter is clamped around both wires what measurment would you expect. - ANSWER 0 amps - due to cancellation of 2 fields Current flow is? - ANSWER The flow of electrons in the circuit. What is the symbol for impedence in an AC CIrcuit. - ANSWE...

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 ...