The Central Control Unit (CCU) of the Fire Alarm System

question 7

Multiple Choice

The central control unit (CCU) of the fire alarm system manufactured by Jensen Electric Co. is a(n) _______ .

• A) mainframe computer
• B) amplifier
• C) master clock
• D) desktop computer

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Definitions:

Scientific Theory

A well-substantiated explanation of some aspect of the natural world, based on a body of evidence and repeatedly tested hypotheses.

Testable Explanation

A hypothesis that can be supported or refuted through experimentation or observation.

Hypothesis

A proposed explanation for a phenomenon, subject to further testing and experimentation.

Photosynthesis

The process by which green plants, algae, and some bacteria convert light energy and carbon dioxide into chemical energy in the form of glucose, releasing oxygen as a byproduct.