Specialty step-down transformers are often _____.
a. used for emergency systems in healthcare facilities
b. connected in series with the load
c. used for small work, such as doorbells and other signaling systems
d. connected to an electrical instrument, such as an ammeter, voltmeter, wattmeter, or relay
c. used for small work, such as doorbells and other signaling systems
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When using a fire extinguisher, what word can be used to remember what to do?
A) PASS B) RED C) FIRE D) LEVER
The four operating modes of the 74194 Universal Shift Register are
A) shift left, shift right, recirculate, parallel load. B) count, shift, recirculate, hold. C) hold, count up, count down, shift right. D) hold, shift left, shift right, parallel load.
The EPA regulates what six major pollutants?
What will be an ideal response?
A detection device that is usually electrically operated with a bimetallic strip of two metals that expand at different rates is a(n):
A. carbon monoxide detector. B. ionization smoke detector C. photoelectric smoke detector D. heat detector