Hvac final accurate - Study guides, Class notes & Summaries

HVAC Final Exam 5 ACCURATE Questions and Answers(RATED A+) A load is an electrical device that _____________________________ - ANSWER uses electricity to do useful work A disconnect switch is used to __________ - ANSWER open and close the main power source to a piece of equipment which of the following are not components of a contactor or relay? - ANSWER thermal element Loads are electrical devices that consume electricity to do _______________ work - ANSWER useful _____ are devic...

Hvac 208 final exam Accurate Questions And Answers! What is the function and operation of a reversing valve - ANSWER Reverses refrigerant flow and provides both heating and cooling. Diverts the discharge gas. What are common failures of reversing valves and causes - ANSWER Stuck valve Overheating Bad coil Leaking by from discharge gas flowing back into the suction line How is metering of refrigerant accomplished with a heat pump? - ANSWER We need to add check valves bypass lines and ...

HVAC Final Exam 3 Accurate Questions & AnswThe current draw in a series circuit is _____________. - ANSWER the same throughout the entire circuit The voltage drop of a series circuit is _____ - ANSWER equal to the sum of the voltage lost through each load in a circuit Two identical 115-volt light-bulbs connected in series with 240 volts would____ - ANSWER burn correctly Parallel Circuits are used in the air conditioning industry because _______ - ANSWER each load in the system needs ful...

HVAC II Final Exam Review| 50 Questions | Accurate Answers. IF a heat pump works normally in the heating mode but will not provide cooling or a defrost mode, which component is most likely defective? - ANSWER Reversing valve Air-to-air heat pumps produce heat by - ANSWER extracting heat from the outdoor air and transferring it to the indoor air In addition to the reversing valve, the other major difference between a heat pump and a cooling only system is - ANSWER heat pumps require two ...

HVAC final exam, unit 15 Accurate 100%(RATED A+) A control can be which of the following? - ANSWER 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) _____. - ANSWER Light bulb, single-pole single-throw switch An electrical power consuming component. - ANSWER is also known as a load The line side of a switch is the. - ANSWER side the power source is connected to If an air conditioning system i...

HVAC final exam, unit 14 Accurate 100%(GTo control ice build-up on a heat pump outdoor coil in the heating cycle, a ____ is attached to a large diaphragm. - ANSWER Microswitch The heater in the thermostat control circuit in the cooling mode is active when the - ANSWER Cooling contact is open If the suction pressure of a system is 60 psi and the oil pump is 85 psig, what is the net oil pressure? - ANSWER 25 psig What is meant by the term "detent" ? - ANSWER opening or closing of a cont...

You are the security subject matter expert (SME) for an organization considering a transition from the legacy environment into a hosted cloud provider 's data center. One of the challenges you 're facing is whether the cloud provider will be able to comply with the existing legislative and contractual frameworks your organization is required to follow. This is a _________ issue. a. Resiliency b. Privacy c. Performance d. Regulatory D 76. You are the security subject matter expert (SME) ...

HVAC final exam, unit 14 Accurate Questions & 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? - ANSWER Head pressure of the system To prove that the combustion blower motor is operating before ignition, a ______ would be used. - ANSWER Sail switch The difference between system overshoot and system lag is called? - ANSWER Temperature swing The purpose ...

HVAC Electrical Final Test Exam With 100% Correct Answers 2024 Split-phase motor PSC CSCR Shaded pole motor Resistance reading to ground from the terminal of a good compressor CSR Best starting and running single-phase compressor - answerA. Uses a start and run winding B. Uses a run capacitor C. Uses a run capacitor, start capacitor, and potential relay D. Simplest motor E. 3 megohms F.Only uses a start capacitor G. CSCR motor How much resistance will be measured in a circuit with...

Level 1 Final Review Accurate 100%(GRADED A+)Natural Gas Furnace - ANSWER Heating Method most commonly used as a heat source in cold climates Ultraviolet light - ANSWER Device used to maintain indoor air quality transfer heat from the air to the refrigerant - ANSWER purpose of evaporator in refrigerant cycle refrigerant is warmer than the outdoor air - ANSWER heat can be transferred from a refrigerant to the outdoors on a hot day because provides pressure drop - ANSWER expansion devi...