Hvac unit 1 - Study guides, Class notes & Summaries

12-24v What is the input voltage range of the Doorbell Cam? 16.5 VAC What is the output voltage of the transformer used to power the SkyControl panel? Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen true True or False: When programming a sensor into the sky panel you can type in the serial number or "learn" it in by triggering the device 2 When programming a DW21, which loop number is used? 1...

HVAC Unit 1: Review Questions and Answers Rated A+ Temperature is defined as The level of heat State the standard conditions for water to boil at 212 degrees Farenheit Earth's atmosphere exerts a weight or pressure of 14.696 psi at sea level. List four types of temperature scales Fahrenheit, Celsius, Kelvin, Rankine Under standard conditions, water freezes at 0 degrees Celsius Molecular motion stops at -460 degrees Fahrenheit One British thermal unit will raise the tempera...

HVAC Unit 12 Review Practice Questions 2024. The _______ is that part of an atom that moves from one atom to another. A.Electron B. Proton C.Positron D.Neutron - CORRECT ANSWER A.Electron The nucleus of an atom contains which particles? A.Electrons and neutrons B.Positrons and protons C.Electrons and positrons D.Neutrons and protons - CORRECT ANSWER D. Neutrons and Protons If an atom has a net positive charge, which of the following is correct? A.The atom has lost p...

Hvac Unit 13 Practice Test 2024. What are the types of Automatic Controls? - CORRECT ANSWER Electrical, Mechanical, Electromechanical and Electronic. Describe the Electrical Automatic Controls - CORRECT ANSWER Operated and normally control electrical devices. Describe the Mechanical Automatic Controls - CORRECT ANSWER Typically operated by pressure or temp and often control fluid flow. Describe the Electromechanical Automatic Controls? - CORRECT ANSWER Driven by pressure or tempera...

Created to serve as a complete, comprehensive code regulating the construction of single-family, two-family and buildings consisting of three or more townhouse units. - Answer IRC (International Residential Code) Administrative - Answer First 2 chapters of code book are True - Answer Plans or supporting documents are almost always required by the controlling authority prior to issuing a permit. T or F Yes - Answer Does the building official have the authority to render interpretations o...

HVAC Unit 12 exam study guide all answers correct If five electrons combine with three protons, the net charge will be ___. ️A) Negative As loads are added in parallel circuit, the total resistance of the circuit ___. ️B) will decrease If two light bulbs are wired in series and one bulb burns out, the other bulb will ___. ️A) go out What happens to the current in a circuit if the resistance is increased? ️C) The current will decrease. What type of charge does an electron have? ...

HVAC final exam unit 14 verified answers When a water regulating valve is used to control the head pressure of a water-cooled system, the valve's spring is acting against which pressure to modulate the water flow? ️Head pressure of the system To prove that the combustion blower motor is operating before ignition, a ______ would be used. ️Sail switch The difference between system overshoot and system lag is called? ️Temperature swing The purpose of a heat anticipator is to_____...

HVAC Unit 12 Practice Study Guide Exam Questions 2024. The _______ is that part of an atom that moves from one atom to another. A.Electron B. Proton C.Positron D.Neutron - CORRECT ANSWER A.Electron The nucleus of an atom contains which particles? A.Electrons and neutrons B.Positrons and protons C.Electrons and positrons D.Neutrons and protons - CORRECT ANSWER D. Neutrons and Protons If an atom has a net positive charge, which of the following is correct? A.The atom has ...

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HVAC final exam, unit 15 already graded A+ A control can be which of the following? ️All of the above An example of a power consuming device would be a(n) ____ while an example of a non-power consuming device would be a(n) _____. ️Light bulb, single-pole single-throw switch An electrical power consuming component. ️is also known as a load The line side of a switch is the. ️side the power source is connected to If an air conditioning system is calling for cooling and the compr...