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ABYC, Electrical Exam - Study Guide Questions with Solutions
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ABYC, Electrical Exam - Study Guide Questions with Solutions The minimum amp circuit breaker that should be used to protect a 120V water heater circuit with a 1600 watt element would be rated at ________ amps. 15 amps When testing for excessive EMF emission near a conductor or appliance, ...

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  • August 5, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • abyc electrical exam study guide questions with
  • the minimum amp circuit breaker that should be use
  • thr primary problem with using a series circuit to
  • the primary by product of excessive electrical r

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ABYC, Electrical Exam - Study Guide
Questions with Solutions

The minimum amp circuit breaker that should be used to protect a 120V water heater
circuit with a 1600 watt element would be rated at ________ amps. - answer15 amps

When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a(n) ____________ - answer Gauss Meter

Thr primary problem with using a series circuit to supply multiple loads is that? - answer
Voltage drop through the circuit will be excessive

The most common electrical circuit problem in marine applications is a(n)
____________ - answer unwanted open

The primary by-product of excessive electrical resistance is ___________ - answer heat

One horsepower is equal to ________ watts - answer746

Excessive electrical resistance can be caused by? - answer undersized wire, loose
connections, and corrosion

The tool of choice for tracing shorted and open circuits is the ________. – answer TDR
(Time Domain Reflectometer)

What material is recommended for clamping conductors over egines and moving
machinery? - answerMetal (w/ insulated inserts)

What is the acceptable minimum clearance for routing wire near a DRY exhaust
section? - answer9in (225mm)

The maximum number of terminals allowed to be attached to any one terminal stud is
______. - answer4

How much current should flow through the DC grounding conductor in a 25 amp DC
motor circuit? - answer0 amps (grounding conductor)

Where the ampacity of each individual conductor is sufficient to carry the entire load
current shared by the parallel conductors, the allowable size (and larger) is ____awg for
connecting parallel conductors. - answer8

, Running a cable to a DC panelboard (3% VD), 15' from the batteries (30' circuit), 12V
system with a max current of 90 amps. What is the cable gauge for this run? - answer0
AWG

DC grounded conductors on new boats that are also equipped with AC systems should
use __________ colored insulation. - answeryellow

The maximum spacing for cable run support is _____ - answer18 in (450mm)

The smallest wire gauge cable allowed for unsheathed wire runs through the boat is
___. - answer16 AWG

What degree F above ambient temperature indicates a "hot spot" in general. -
answer25F

Up to how many volts is considered acceptable with a neutral to ground leakage test? -
answer2V

What % voltage swing is considered normal with AC nominal voltage? - answer+/- 10%

How much simulated theoretical voltage drop is considered too much with a 15A load? -
answer15.5%

According to the ABYC, the shore-power grounded conductor should: - answerB. Not be
grounded onboard the boat

If a customer complains about receiving shocks from his/her boat when the boat is
plugged into shore power, the first test should be a: - answerA. polarity check of the
shore cord

If a customer complains of low voltage at the AC panel, the technician should first: -
answerB. check voltage at the dock pedestal

A costomer complains about a reverse polarity problem. All of the following are likely
causes except: - answerC. an open neutral

In a galvanic isolator installation, which of the following could cause a loss of galvanic
isolation? - answerD. all of the above

Tech A says that a generators neutral and ground must be tied together when the
generator is supplying AC power. Tech B says they must always be kept isolated.
Which tech is correct? - answerA. tech A

A dropped neutral conductor in a 240/120V shore power system will most likely show up
as: - answerD. burned out 120V appliances

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