IYRS Electrical ABYC Exam Verified Exam Questions and Answers
Latest update 2026/2027
Question:
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
Answer:
Question:
When testing for excessive EMF emission near a conductor or appliance, the tool of choice is a
Answer:
Gauss Meter
Question:
The primary problem with using a series circuit to supply multiple loads is that
Answer:
voltage drop across each load will be excessive
Question:
the most common electrical circuit problem in marine applications is
Answer:
unwanted open
Question:
the primary by-product of excessive electrical resistance is
Answer:
heat
Question:
the tool of choice today for tracing shorted and open circuits is the
Answer:
TDR
, Question:
What material is recommended for clamping conductors over engines and moving machinery
according to the ABYC
Answer:
Metal
Question:
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust section is
Answer:
9 inches (225 mm)
Question:
The maximum number of terminals allowed to be attached to any one terminal stud based on ABYC is
Answer:
Question:
How much current should flow through the DC grounding conductor in a 25-amp DC motor circuit
Answer:
0 amps
Question:
conductors of #10 AWG and larger shall be permitted to be connected in parallel ______
Answer:
Where the ampacity of each individual conductor is sufficient to carry the entire load current shared
by the parallel conductors
Question:
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?
Answer:
0 AWG
Latest update 2026/2027
Question:
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
Answer:
Question:
When testing for excessive EMF emission near a conductor or appliance, the tool of choice is a
Answer:
Gauss Meter
Question:
The primary problem with using a series circuit to supply multiple loads is that
Answer:
voltage drop across each load will be excessive
Question:
the most common electrical circuit problem in marine applications is
Answer:
unwanted open
Question:
the primary by-product of excessive electrical resistance is
Answer:
heat
Question:
the tool of choice today for tracing shorted and open circuits is the
Answer:
TDR
, Question:
What material is recommended for clamping conductors over engines and moving machinery
according to the ABYC
Answer:
Metal
Question:
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust section is
Answer:
9 inches (225 mm)
Question:
The maximum number of terminals allowed to be attached to any one terminal stud based on ABYC is
Answer:
Question:
How much current should flow through the DC grounding conductor in a 25-amp DC motor circuit
Answer:
0 amps
Question:
conductors of #10 AWG and larger shall be permitted to be connected in parallel ______
Answer:
Where the ampacity of each individual conductor is sufficient to carry the entire load current shared
by the parallel conductors
Question:
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?
Answer:
0 AWG
