Hvac final exam accurate - Study guides, Class notes & Summaries

HVAC Final Exam Electrical For Air Conditioning Accurate 100%(Graded A+) When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - ANSWER A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming and operating status. Sel...

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-R Final Exam Accurate 100%(Graded volt amps - ANSWER Transformers are normally rated in? true - ANSWER An insulated jumper may be used to temporarily jump a component in an electrical circuit(true or false)? divided by 10 - ANSWER When using a 10 wrap multiplier the reading on the meter must be? ladder diagram - ANSWER An electrical line wiring diagram is often called? pictorial diagram - ANSWER A wiring diagram that shows the approximate location of components is called? cl...

HVAC 1 Final Exam Review Accurate 100 Spiral wound gaskets are primarily used on - ANSWER high temperature high pressure systems lip type seals are used primarily - ANSWER on rotating shafts The side force applied at right angles to a bearing and shaft such as that applied from a pulley is called a - ANSWER radial load A type of anti-friction bearing is a - ANSWER ball bearing If there is darkened, yet still oily grease present on a failed bearing, a likely cause of failure is - ANS...

Hvac 208 final exam Accurate Questions And 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 bi-direction...

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...