In one type of flow switch, the switch is actually a ____ that detects the increase in air pressure inside the duct when the blower is in operation.
a. pressure switch
b. toggle switch
c. temperature switch
d. centrifugal switch
a. pressure switch
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Infotainment refers to a type of ____ system that provides a combination of information and entertainment.
A. radio B. GPS C. TV D. media
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During earthquakes some soils are subject to _____________.
A. solidification B. liquefaction C. semi-liquefaction D. loosening
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The amount of current that it takes to cause ventricular fibrillation is __________ milliamperes.
a. 5 b. 6–30 c. 50–150 d. 1000–4300
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Which of the following seals should never be run when it is dry?
A. mechanical seal B. O-ring C. packing seal D. radial lip seal
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