Ingredients that are added to resins and polymers to improve physical properties of the composite are most accurately known as ____.     ?

A. ?lubricants
B. ?plasticizers
C. ?additives
D. ?reinforcements


Answer: D

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Parting tools can jam in the cut and break as a result of:

A) Cutting speed that is too high B) The tool is set above center C) Feed that is too light D) Lack of cutting oil or too heavy feed

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Technician A says that a defective ground connection at the master control switch (driver's side) could cause the failure of all power windows. Technician B says that if one control wire is disconnected, all windows will fail to operate. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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One thing that some VRF systems can do that common ductless systems cannot do is _____

a. provide heating and cooling to different areas at the same time b. operate as a heat pump c. operate in a dehumidification mode d. respond to a schedule from a programmable thermostat

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Examples of load devices include:

A) Motors, resistance heaters, and solenoid valves. B) Motors, thermostats, overloads, heaters, and switches. C) Overloads, door switches, and limit switches. D) Thermostats, pressure switches, and overloads.

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