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IYRS Electrical ABYC Exam Questions and Answers Graded A+
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IYRS Electrical ABYC Exam Questions and Answers Graded A+ 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 When testing for excessive EMF emission near a conductor or appliance, the tool o...

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  • August 5, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • iyrs electrical abyc exam questions and answers gr
  • the minimum amp circuit breaker that should be use
  • when testing for excessive emf emission near a con
  • what material is recommended for clamping condu

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IYRS Electrical ABYC Exam Questions
and Answers Graded A+


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

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

The primary problem with using a series circuit to supply multiple loads is that - answer
voltage drop across each load will be excessive

the most common electrical circuit problem in marine applications is - answer unwanted
open

the primary by-product of excessive electrical resistance is - answer heat

the tool of choice today for tracing shorted and open circuits is the: - answer TDR

What material is recommended for clamping conductors over engines and moving
machinery according to the ABYC - answer Metal

according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is - answer9 inches (225 mm)

The maximum number of terminals allowed to be attached to any one terminal stud
based on ABYC is - answer4

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

conductors of #10 AWG and larger shall be permitted to be connected in parallel
______ - answerWhere the ampacity of each individual conductor is sufficient to carry
the entire load current shared by the parallel conductors

A technician is installing the cable run from the batteries to the main DC panelboard on
a boat aspart of a refit. The boat has a 12-volt system, and the distance from the panel
to the batteries is 15 ft (approximately 3 m).The maximum current draw from the panel
is calculated at 90 amps.What gauge cable should be used at a minimum to maintain
Standards compliance? - answer0 AWG

, 8. DC grounded conductors on new boats that are also equipped with AC systems
should use _________ insulation. - answeryellow

the maximum spacing for cable run support based on ABYC is - answer16 inches (400
mm)

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

The maximum sustained charging voltage acceptable to some gel cell battery
manufacturers is - answer14.1

Sheathed, ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within _______ of connection to the battery -
answer40 Inches

on a battery where a hydrometer can be used, a cell reading of 0.050 points of a
specific gravity below all of the other cells in the battery may indicate - answerA bad cell
and battery replacement needed

some battery manufacturers will only consider replacement on batteries whose
condition has been determined by use of a - answerconductance tester

Tech A says that sealed batteries can be mounted anywhere in the boat where space
can be found.TechBsays that consideration should be given to ventilation and the
mounting surfaces and the surrounding area near the battery, and their resistance to
acid attack.Which technician is correct? - answertech B

Minimum battery reserve capacity allowed based on ABYC standards is - answer90
Minutes

Based on ABYC standards, cable attachment to batteries with wing type nuts is allowed
as long as the wire gauge does not exceed - answer8 AWG

Traditional battery load testing methods dictate that a load equivalent to _____ % of the
battery's CCA rating be placed on the battery - answer100

The metallic case of the battery charger should be connected to the - answerDC
grounding system

Tech A says that voltage supplied to the rotor controls alternator output voltage. Tech B
says that the alternator output is proportional to rotor voltage. Which Technician is
correct? - answerBoth Techs

A voltage regulator controls which of the following? - answerAlternator field Voltage

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