IYRS Electrical ABYC Exam Questions
And Answers 100% Pass Guaranteed
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 - [Correct Answer]-15
When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a - [Correct Answer]-Gauss Meter
The primary problem with using a series circuit to supply multiple loads is that - [Correct
Answer]-voltage drop across each load will be excessive
the most common electrical circuit problem in marine applications is - [Correct Answer]-
unwanted open
the primary by-product of excessive electrical resistance is - [Correct Answer]-heat
the tool of choice today for tracing shorted and open circuits is the: - [Correct Answer]-TDR
What material is recommended for clamping conductors over engines and moving
machinery according to the ABYC - [Correct Answer]-Metal
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is - [Correct Answer]-9 inches (225 mm)
The maximum number of terminals allowed to be attached to any one terminal stud
based on ABYC is - [Correct Answer]-4
How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit - [Correct Answer]-0 amps
conductors of #10 AWG and larger shall be permitted to be connected in parallel
______ - [Correct Answer]-Where 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? - [Correct Answer]-0 AWG
8. DC grounded conductors on new boats that are also equipped with AC systems
should use _________ insulation. - [Correct Answer]-yellow
the maximum spacing for cable run support based on ABYC is - [Correct Answer]-16
inches (400 mm)
the smallest gauge cable allowed for unsheathed wire runs through the boat is - [Correct
Answer]-16 AWG
The maximum sustained charging voltage acceptable to some gel cell battery
manufacturers is - [Correct Answer]-14.1
Sheathed, ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within _______ of connection to the battery -
[Correct Answer]-40 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 - [Correct Answer]-A
bad cell and battery replacement needed
some battery manufacturers will only consider replacement on batteries whose
condition has been determined by use of a - [Correct Answer]-conductance 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? - [Correct Answer]-tech B
Minimum battery reserve capacity allowed based on ABYC standards is - [Correct
Answer]-90 Minutes
Based on ABYC standards, cable attachment to batteries with wing type nuts is allowed
as long as the wire gauge does not exceed - [Correct Answer]-8 AWG
Traditional battery load testing methods dictate that a load equivalent to _____ % of the
battery's CCA rating be placed on the battery - [Correct Answer]-100
The metallic case of the battery charger should be connected to the - [Correct Answer]-DC
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? - [Correct Answer]-Both Techs
And Answers 100% Pass Guaranteed
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 - [Correct Answer]-15
When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a - [Correct Answer]-Gauss Meter
The primary problem with using a series circuit to supply multiple loads is that - [Correct
Answer]-voltage drop across each load will be excessive
the most common electrical circuit problem in marine applications is - [Correct Answer]-
unwanted open
the primary by-product of excessive electrical resistance is - [Correct Answer]-heat
the tool of choice today for tracing shorted and open circuits is the: - [Correct Answer]-TDR
What material is recommended for clamping conductors over engines and moving
machinery according to the ABYC - [Correct Answer]-Metal
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is - [Correct Answer]-9 inches (225 mm)
The maximum number of terminals allowed to be attached to any one terminal stud
based on ABYC is - [Correct Answer]-4
How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit - [Correct Answer]-0 amps
conductors of #10 AWG and larger shall be permitted to be connected in parallel
______ - [Correct Answer]-Where 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? - [Correct Answer]-0 AWG
8. DC grounded conductors on new boats that are also equipped with AC systems
should use _________ insulation. - [Correct Answer]-yellow
the maximum spacing for cable run support based on ABYC is - [Correct Answer]-16
inches (400 mm)
the smallest gauge cable allowed for unsheathed wire runs through the boat is - [Correct
Answer]-16 AWG
The maximum sustained charging voltage acceptable to some gel cell battery
manufacturers is - [Correct Answer]-14.1
Sheathed, ungrounded conductors connected directly to a battery must have
overcurrent protection devices located within _______ of connection to the battery -
[Correct Answer]-40 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 - [Correct Answer]-A
bad cell and battery replacement needed
some battery manufacturers will only consider replacement on batteries whose
condition has been determined by use of a - [Correct Answer]-conductance 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? - [Correct Answer]-tech B
Minimum battery reserve capacity allowed based on ABYC standards is - [Correct
Answer]-90 Minutes
Based on ABYC standards, cable attachment to batteries with wing type nuts is allowed
as long as the wire gauge does not exceed - [Correct Answer]-8 AWG
Traditional battery load testing methods dictate that a load equivalent to _____ % of the
battery's CCA rating be placed on the battery - [Correct Answer]-100
The metallic case of the battery charger should be connected to the - [Correct Answer]-DC
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? - [Correct Answer]-Both Techs
