Select the most accurate response. Refrigerators and heat pumps are both systems which transfer energy from low-temperature reservoirs to high-temperature reservoirs, against the natural direction of heat transfer. The purpose of a refrigerator is to keep an enclosed space cool. The purpose of a heat pump is:Question 6Select one:a.to remove heat from a colder spaceb.to remove heat from a warmer spacec.to supply heat to a colder spaced.to supply heat to a warmer space

Multiple Choice QuestionHow does a heat pump work to keep your refrigerator cool?Multiple choice question.A refrigerant liquid is compressed and gives of heat to its surrounding as it does so.A refrigerant liquid is allowed to expand and absorbs heats from its surroundings as it does so.

In which system is heat usually transferred from the cooler part to the warmer part?Select one:a.none of the above, because it is impossible to transfer heat in this mannerb.a refrigerator that is runningc.a stove as it heats up waterd.an electric fan that is running

What is the purpose of a relay in an electrical system?A) To amplify electrical signalsB) To regulate the flow of currentC) To switch high-power circuits using low-power signalsD) To convert electrical energy into mechanical energy

A refrigerator that consumes 3 kW of electricity when running and has a coefficient of performance of 1.5 is placed in a well-sealed room, and is plugged in with its door open. The rate of cooling or heating this refrigerator will provide to the air in the room when running isQuestion 8Select one:a.3 kJ/s, coolingb.4.5 kJ/s, coolingc.2 kJ/s, heatingd.4.5 kJ/s, heatinge.3 kJ/s, heating

Multiple Choice QuestionWhat physical process does a heat pump take advantage of in order to provide heat to a building?Multiple choice question.The release of heat when a gas condensatesThe absorption of heat when a liquid evaporatesThe release of heat when a liquid evaporatesThe absorption of heat when a gas condensates