Chapter 7 Marine Electrical System Exam Questions & Answers 100% Verified! !
diode - ANSWER-helps control electrical current through circuits in alternators, solar panels, battery isolators, etc
AC (alternating current ) - ANSWER-voltage potentials between 120v and 240v (less than 300v )
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Chapter 7 Marine Electrical System Exam Questions & Answers 100% Verified! ! diode - ANSWER-helps control electrical current through circuits in alternators, solar panels, battery isolators, etc
AC (alternating current ) - ANSWER-voltage potentials between 120v and 240v (less than 300v )
(ABYC standards)
DC (direct current ) - ANSWER-less than 50 volts by ABYC standards
frequency - ANSWER-how often electrical potential alternates
electrical potential - ANSWER-the difference in electrical charge between the battery's positive and negative terminal
volts - ANSWER-units used to measure electrical potential
Hertz - ANSWER-unit of measure for frequency
DVOM - ANSWER-digital volt-ohmmeter
digital multimeter - ANSWER-lets you see what is happening inside an electrical circuit
amp-clamp meter - ANSWER-lets you see electrical current (amperage), in real time as it flows through a circuit
self-scaling - ANSWER-means the multimeter will always select the appropriate scale for whatever it is you are measuring
RMS (root mean square) - ANSWER-describes the mathematical formula the meter uses to calculate what it is measuring
4 things you need to know when determining the correct wire size: - ANSWER-
operating voltage, how much amperage you are going to pull through the wire, how long
the circuit is, and if the circuit is a "critical" or non-critical circuit type
critical circuit maximum voltage drop through the circuit - ANSWER-does not exceed 3 percent
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