How is a compressor's rated load amp rating, RLA, determined?
A) It is the compressor's maximum continuous current rating divided by 1.56.
B) It is the average of the operating current across all operating conditions for which the system is designed.
C) It is the maximum current that the compressor should draw.
D) It is the current draw at the compressor's capacity rating point.
A
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Converting (x, y) into (r, ?). The following script converts rectangular inputs into polar (magnitude and phase) coordinates with phase being in radians and degrees. Find the error in the script.
x = input('x= '); y = input('y= '); r = sqrt(x^2 +y^2) theta = atan2(y,x) deg = (360/pi)*theta
Dynamic motor braking is often used with AC motors being controlled by a(n) _____.
a. adjustable frequency drive b. isolated solid-state relay c. insulated gate bipolar transistor d. electromechanical relay
Rocks are aggregates of minerals
Indicate whether the statement is true or false
An arc-fault circuit interrupter (AFCI) provides protection from the effects of arc faults by ____ the circuit when an arc fault is detected.
A. sending an alert to a bluetooth detector for B. redirecting energy to an alternate pathway for C. disabling the main electrical branch line D. functioning to de-energize