IYRS ELECTRICAL ABYC EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025
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
ANSWERS15
When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a - CORRECT ANSWERSGauss Meter
The primary problem with using a series circuit to supply multiple loads is that -
CORRECT ANSWERSvoltage drop across each load will be excessive
the most common electrical circuit problem in marine applications is - CORRECT
ANSWERSunwanted open
the primary by-product of excessive electrical resistance is - CORRECT ANSWERSheat
the tool of choice today for tracing shorted and open circuits is the: - CORRECT
ANSWERSTDR
, What material is recommended for clamping conductors over engines and moving
machinery according to the ABYC - CORRECT ANSWERSMetal
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is - CORRECT ANSWERS9 inches (225 mm)
The maximum number of terminals allowed to be attached to any one terminal stud
based on ABYC is - CORRECT ANSWERS4
How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit - CORRECT ANSWERS0 amps
conductors of #10 AWG and larger shall be permitted to be connected in parallel ______
- CORRECT ANSWERSWhere 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 ANSWERS0 AWG
CORRECT QUESTIONS AND ANSWERS
2025
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
ANSWERS15
When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a - CORRECT ANSWERSGauss Meter
The primary problem with using a series circuit to supply multiple loads is that -
CORRECT ANSWERSvoltage drop across each load will be excessive
the most common electrical circuit problem in marine applications is - CORRECT
ANSWERSunwanted open
the primary by-product of excessive electrical resistance is - CORRECT ANSWERSheat
the tool of choice today for tracing shorted and open circuits is the: - CORRECT
ANSWERSTDR
, What material is recommended for clamping conductors over engines and moving
machinery according to the ABYC - CORRECT ANSWERSMetal
according to ABYC acceptable minimum clearance for routing wire near a dry exhaust
section is - CORRECT ANSWERS9 inches (225 mm)
The maximum number of terminals allowed to be attached to any one terminal stud
based on ABYC is - CORRECT ANSWERS4
How much current should flow through the
DC grounding conductor in a 25-amp DC motor circuit - CORRECT ANSWERS0 amps
conductors of #10 AWG and larger shall be permitted to be connected in parallel ______
- CORRECT ANSWERSWhere 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 ANSWERS0 AWG
