IYRS Electrical ABYC Exam accurate Questions & Answers(RATED 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 - ANSWER 15 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 - ANSWER 9 inches (225 mm) The maximum number of terminals allowed to be attached to any one terminal stud based on ABYC is - ANSWER 4 How much current should flow through the DC grounding conductor in a 25-amp DC motor circuit - ANSWER 0 amps 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 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 8. DC grounded conductors on new boats that are also equipped with AC systems should use _________ insulation. - ANSWER yellow the maximum spacing for cable run support based on ABYC is - ANSWER 16 inches (400 mm) the smallest gauge cable allowed for unsheathed wire runs through the boat is - ANSWER 16 AWG The maximum sustained charging voltage acceptable to some gel cell battery manufacturers is - ANSWER 14.1 Sheathed, ungrounded conductors connected directly to a battery must have overcurrent protection devices located within _______ of connection to the battery - ANSWER 40 Inches 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 15 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 - ANSWER 9 inches (225 mm) The maximum number of terminals allowed to be attached to any one terminal stud based on ABYC is - ANSWER 4 How much current should flow through the DC grounding conductor in a 25-amp DC motor circuit - ANSWER 0 amps 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 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 8. DC grounded conductors on new boats that are also equipped with AC systems should use _________ insulation. - ANSWER yellow the maximum spacing for cable run support based on ABYC is - ANSWER 16 inches (400 mm) the smallest gauge cable allowed for unsheathed wire runs through the boat is - ANSWER 16 AWG The maximum sustained charging voltage acceptable to some gel cell battery manufacturers is - ANSWER 14.1 Sheathed, ungrounded conductors connected directly to a battery must have overcurrent protection devices located within _______ of connection to the battery - ANSWER 40 Inches