USCG USCG Electrical
Set 3 • Question #71 of 142
Launch Interactive Practice Room Motor controllers are seldom troubled with grounds because __________.
A
the auxiliary contacts have a high resistance connection
B
the contactors and relays are mounted on a non-conducting panel
✓ Correct Answer
C
the resistor banks are composed of individual series- connected units
D
there are separate switches for the motor and the control
USCG NMC Regulatory Explanation
In USCG Marine Electrical Systems (IEEE 45 and 46 CFR), regarding 'Motor controllers are seldom troubled with grounds because', the compliant technical standard is: 'the contactors and relays are mounted on a non-conducting panel'.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...