What statement about central station fire alarm systems is true?

A. Are owned and operated by the property owner of the protected premise
B. The central station must be located in the same state as the protected premise
C. The central station must be listed and approved by a recognized testing agency and the AHJ
D. Central stations will only provide service to individual clients


C. The central station must be listed and approved by a recognized testing agency and the AHJ

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List the four main sources of agricultural pollution

What will be an ideal response?

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When operated in its ________ mode, a FF changes states with each clock pulse

Fill in the blank(s) with correct word

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?What are two factors that influence the rate of heat loss from a vertical cylindrical tank?

A. ?average temperature of water in the tank and outer diameter of tank insulation B. ?piping arrangement and inlet water temperature C. ?average water temperature in the tank and size of heat exchanger D. ?piping arrangement and surface area of heat exchanger

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A ____ causes a controller to produce on and off signals at different values around the set point.

A. dynamic response B. first order time lag C. deadband D. deadtime

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