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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What will be an ideal response?
When determining what percentage of a crane's capacity is used during for lift, it is calculated by dividing the total lifted weight by the _____.
a. the crane’s capacity, multiplied by 100 b. the crane’s single-line pull, multiplied by 100 c. the load block’s parts of line, multiplied by 100 d. operating radius, multiplied by 100
Today's high-temperature engines do not require an intact fan shroud for the cooling fan to be efficient.
Answer the following statement true (T) or false (F)
What is a “transcritical” refrigeration process?
a. System heat rejection may take place above the refrigerant’s critical temperature. b. System heat rejection only occurs in a condenser.