ABYC Marine Electrical questions with verified answer1

ABYC Marine Electrical questions with verified
answers
___ through circuits on a boat is perhaps the most common problem with
electrical circuitry.
A Overly high rates of current flow
B Resistance to heat
C Unrestricted pressure
D Resistance to electrical current flow Ans✓✓✓-D Resistance to electrical current
flow


A Cable Run for a DC panel for a boat with a 12 Volt System where the run is 15
feet and the Draw is 90 Amps, what is the minimum gauge wire?
A. 0 AWG
B. 2 AWG
C. 4 AWG
D. 6 AWG Ans✓✓✓-A. 0 AWG


A disadvantage of a time-domain reflectometer (TDR) is that it will not ___.


A. function on short runs
B. function with paired wires
C. find open circuits
D. function without a power source connected to the circuit Ans✓✓✓-A. function
on short runs

, A microwave oven with a wattage of 1.2 KW (1,200 watts) and a 120 VAC will
draw ___ amps.
A 100
B 60
C 20
D 10 Ans✓✓✓-D 10


A time-domain reflectometer (TDR) can confirm continuity and ___.


A pinpoint the location of a short or open circuit
B decrease the electrical conductivity of a material
C display the amount of resistance present in a circuit
D repair any short circuits that may be present Ans✓✓✓-A pinpoint the location
of a short or open circuit


According to ABYC, acceptable minimum Clearance for routing wire near a DRY
exhaust section is:
A. 2"
B. 9"
C. 3"
D. 7" Ans✓✓✓-B. 9"


Based on Section 2, the most common electrical circuit problem is: Ans✓✓✓-
Unwanted Open