The energy change that takes place when the atoms of materials are rearranged to form new materials from the same atoms is:
A) The energy of centrifugal force. B) Kinetic energy.
C) The energy of centripetal force. D) Chemical energy.
[Ques. 2] As an air-conditioning and refrigeration technician, which of the following states of matter will you use in your job?
A) Liquid and solid B) Gas and liquid
C) Solid, liquid, and gas D) Solid only
[Ques. 3] Size, form, shape, and state relate to:
A) The physical state of matter. B) The chemical state of matter.
C) The structure of matter. D) The critical point of matter.
[Ques. 4] When sizing a compressor for a refrigeration application, the compressor is rated by: (TECH TIP)
A) The amount of refrigerant in cubic feet the compressor can move.
B) The amount of time in which the compressor can move a pound of refrigerant through the evaporator.
C) The number of pounds of refrigerant the compressor pumps per hour.
D) The size of the refrigerated space.
[Ques. 5] The reason thermal properties of matter are important is because:
A) They determine if something is wood or metal.
B) They determine the relative buoyancy of two liquids at a constant temperature.
C) Heating and air conditioning are about moving heat.
D) They determine which direction vortexes will form through a restriction.
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