AFCP devices must detect and interrupt the DC arc faults and then disconnect or disable the inverters or ____ and all the system components in the faulted circuit.
a. polarity controllers
b. charge protectors
c. circuit protectors
d. charge controllers
d. charge controllers
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Products used for ____ include portable posts and railings, rotary gates, turnstiles, electronic detection and counting systems, and items to limit access.
A. fire protection B. protective cover C. pedestrian control D. wall and corner guards
Which of the following is LEAST-Likely a type of pump?
A. Inlet type B. Rotor type C. Internal/external gear crescent type D. Vane type
Who was the Swedish botanist credited with developing the system of binomial nomenclature?
a. Charles Darwin c. Louis Pasteur b. Robert Hook d. Carolus Linnaeus
We need not only physical dimensions to describe our surroundings but also some way to scale or divide these physical dimensions.
a. True b. False