A system that can be used to give instructions to building occupants in the event of an emergency is called a(n) _____.
a. analog addressable system
b. addressable system
c. intelligent system
d. voice evacuation system
d. voice evacuation system
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_______________ has many advantages over using ethanol or methanol as a gasoline additive with an energy density of about 90 percent that of gasoline
Fill in the blank(s) with the appropriate word(s).Propylene glycol-based coolant is less toxic than ethylene glycol.
Answer the following statement true (T) or false (F)
The <=> sort operator, known as the ____________________ operator, reduces coding requirements.
Fill in the blank(s) with the appropriate word(s).
Variable frequency drives (VFD) reduce the speed of AC motors by:
A) Controlling the frequency (Hz) of the power to the motor. B) Applying an adjustable magnetic brake to the motor. C) Controlling the voltage available to the motor, like a light dimmer. D) Limiting the current to the motor.