ABYC ELECTRICAL STUDY 1 -merge with master sets
questions with verified answers
1. MINIMUM BATTERY RESERVE CAPACITY ALLOWED BASED ON ABYC STANDARD
IS? Ans✓✓✓-90 MINUTES
4. INCREASING THE GENERATOR OUTPUT LOAD SHOULD HAVE WHAT EFFECT ON
THE ROTOR FIELD VOLTAGE? Ans✓✓✓-INCREASE THE VOLTAGE
9. THE TOOL OF CHOICE FOR TESTING AC GENERATOR WINDING INSULATION
INTEGRITY IS A: Ans✓✓✓-MEGOHMMETER
A "DROPPED NEUTRAL" CONDUCTOR IN A 240/120V SHORE POWER SYSTEM WILL
MOST LIKELY SHOW UP AS? Ans✓✓✓-BURNED OUT 120V APPLIANCES
A CUSTOMER COMPLAINS ABOUT A REVERSE POLARITY PROBLEM. ____ IS NOT A
LIKELY CAUSE. Ans✓✓✓-AN OPEN NEUTRAL
A CUSTOMER COMPLAINS THAT THE GENERATOR WILL START FROM THE LOCAL
CONTROL PANEL AT THE GENERATOR, BUT NOT FROM THE REMOTE CONTROL
PANEL AT THE HELM LOCATION. THE MOST PROBABLE CAUSE FOR THIS WOULD
BE Ans✓✓✓-EXCESSIVE VOLTAGE DROP ACROSS THE REMOTE STARTER SWITCH
A POSSIBLE CAUSE OF CORRECT NO LOAD VOLTAGE WITH A LOSS OF VOLTAGE AT
FULL LOAD ON A BRUSHLESS GENERATOR COULD BE: Ans✓✓✓-SHORTED DIODE
IN EXCITER ROTOR
,A TECHNICIAN HAS INSTALLED A SPOTLIGHT RATED TO DRAW 14 AMPS AT 12
VDC. THE DISTANCE BETWEEN DC PANEL BOARD AND SPOTLIGHT IS 24'. WHAT
WOULD BE THE PROPER WIRE GAUGE SIZE BASED ON ABYC E-11 STANDARD?
Ans✓✓✓-10 GAUGE (REFER TO VOLTAGE DROP TABLE AT P. 33)
A TRANSFORMER TRANSFER POWER FROM ONE CIRCUIT TO ANOTHER USING
Ans✓✓✓-A MUTUAL INDUCTION
A TRUE - RMS VOLTMETER IS REQUIRED TO ACCURATELY CHECK Ans✓✓✓-
NONSINUSOIDAL INVERTER AC OUTPUT
A VOLTAGE REGULATOR CONTROLS? Ans✓✓✓-ALTERNATOR FIELD VOLTAGE
ABYC STANDARD ______ APPLIES TO INVERTERS. Ans✓✓✓-A-31
ACCORDING TO ABYC, ACCEPTABLE MINIMUM CLEARANCE FOR ROUTING WIRE
NEAR A DRY EXHAUST SECTION IS Ans✓✓✓-9 INCHES
ACCORDING TO ABYC, UNDER WHICH OF THE FOLLOWING CONDITIONS MAY A
GENERATOR SET WITHOUT IGNITION-PROTECTED COMPONENTS BE INSTALLED IN
A COMPARTMENT CONTAINING A GASOLINE PROPULSION ENGINE? Ans✓✓✓-
UNDER NO CONDITION IS THIS PERMITTED
ACCORDING WITH THE RECOMMENDATION FROM STANDARD E-11 THE WIRING
COLOR CODE FOR "DC NEGATIVE CONDUCTOR" IS: Ans✓✓✓-BLACK OR YELLOW
AN A/C VOLTMETER IS REQUIRE AT THE PANEL IF THE BOAT IS EQUIPPED WITH:
Ans✓✓✓-AN INVERTER
, AN ELECTRIC WATER HEATER THAT USES A 1000 WATT 120 VAC ELEMENT
REQUIRE A MINIMUM OVERCURRENT P ROTECTION RATING OF Ans✓✓✓-10
AMPS
an intercircuit short circuit Ans✓✓✓-is one which unwanted conductors , such as
an errant screw, completes a circuit in ways it wasn't designed to be connected
AN OVERHEATED SHORE POWER CONNECTOR PROBLEM COULD BE CAUSED BY
ALL OF THE FOLLOWING EXCEPT: Ans✓✓✓-REVERSE POLARITY
armature Ans✓✓✓-the iron the coil goes on
AS PART OF AN INVERTER INSTALLATION, A BATTERY SWITCH IS REQUIRED IF THE
DC POWER SOURCE HAS A CUMULATIVE CCA RATING OF______ OR MORE.
Ans✓✓✓-801
AS PART OF THE GENERATOR INSTALLATION THE FUEL SELENOID AND THE FUEL
TRANSFER PUMP, SHOULD BE POWERED Ans✓✓✓-ALL THE TIME WHILE THE
GENERATOR IS RUNNING
BASED ON ABYC STANDARDS, A 1,000 WATT 120VAC WATER HEATER, WHOSE
SUPPLY CABLE HAS 105C THERMAL RATING, IS RUN OUTSIDE OF THE ENGINE
ROOM AND IS NOT BUNDLED WITH ANY OTHER CONDUCTORS. WHAT MINIMUM
SIZE WIRE GAUGE WILL BE REQUIRED TO SERVICE THIS CIRCUIT? Ans✓✓✓-16
gauge
questions with verified answers
1. MINIMUM BATTERY RESERVE CAPACITY ALLOWED BASED ON ABYC STANDARD
IS? Ans✓✓✓-90 MINUTES
4. INCREASING THE GENERATOR OUTPUT LOAD SHOULD HAVE WHAT EFFECT ON
THE ROTOR FIELD VOLTAGE? Ans✓✓✓-INCREASE THE VOLTAGE
9. THE TOOL OF CHOICE FOR TESTING AC GENERATOR WINDING INSULATION
INTEGRITY IS A: Ans✓✓✓-MEGOHMMETER
A "DROPPED NEUTRAL" CONDUCTOR IN A 240/120V SHORE POWER SYSTEM WILL
MOST LIKELY SHOW UP AS? Ans✓✓✓-BURNED OUT 120V APPLIANCES
A CUSTOMER COMPLAINS ABOUT A REVERSE POLARITY PROBLEM. ____ IS NOT A
LIKELY CAUSE. Ans✓✓✓-AN OPEN NEUTRAL
A CUSTOMER COMPLAINS THAT THE GENERATOR WILL START FROM THE LOCAL
CONTROL PANEL AT THE GENERATOR, BUT NOT FROM THE REMOTE CONTROL
PANEL AT THE HELM LOCATION. THE MOST PROBABLE CAUSE FOR THIS WOULD
BE Ans✓✓✓-EXCESSIVE VOLTAGE DROP ACROSS THE REMOTE STARTER SWITCH
A POSSIBLE CAUSE OF CORRECT NO LOAD VOLTAGE WITH A LOSS OF VOLTAGE AT
FULL LOAD ON A BRUSHLESS GENERATOR COULD BE: Ans✓✓✓-SHORTED DIODE
IN EXCITER ROTOR
,A TECHNICIAN HAS INSTALLED A SPOTLIGHT RATED TO DRAW 14 AMPS AT 12
VDC. THE DISTANCE BETWEEN DC PANEL BOARD AND SPOTLIGHT IS 24'. WHAT
WOULD BE THE PROPER WIRE GAUGE SIZE BASED ON ABYC E-11 STANDARD?
Ans✓✓✓-10 GAUGE (REFER TO VOLTAGE DROP TABLE AT P. 33)
A TRANSFORMER TRANSFER POWER FROM ONE CIRCUIT TO ANOTHER USING
Ans✓✓✓-A MUTUAL INDUCTION
A TRUE - RMS VOLTMETER IS REQUIRED TO ACCURATELY CHECK Ans✓✓✓-
NONSINUSOIDAL INVERTER AC OUTPUT
A VOLTAGE REGULATOR CONTROLS? Ans✓✓✓-ALTERNATOR FIELD VOLTAGE
ABYC STANDARD ______ APPLIES TO INVERTERS. Ans✓✓✓-A-31
ACCORDING TO ABYC, ACCEPTABLE MINIMUM CLEARANCE FOR ROUTING WIRE
NEAR A DRY EXHAUST SECTION IS Ans✓✓✓-9 INCHES
ACCORDING TO ABYC, UNDER WHICH OF THE FOLLOWING CONDITIONS MAY A
GENERATOR SET WITHOUT IGNITION-PROTECTED COMPONENTS BE INSTALLED IN
A COMPARTMENT CONTAINING A GASOLINE PROPULSION ENGINE? Ans✓✓✓-
UNDER NO CONDITION IS THIS PERMITTED
ACCORDING WITH THE RECOMMENDATION FROM STANDARD E-11 THE WIRING
COLOR CODE FOR "DC NEGATIVE CONDUCTOR" IS: Ans✓✓✓-BLACK OR YELLOW
AN A/C VOLTMETER IS REQUIRE AT THE PANEL IF THE BOAT IS EQUIPPED WITH:
Ans✓✓✓-AN INVERTER
, AN ELECTRIC WATER HEATER THAT USES A 1000 WATT 120 VAC ELEMENT
REQUIRE A MINIMUM OVERCURRENT P ROTECTION RATING OF Ans✓✓✓-10
AMPS
an intercircuit short circuit Ans✓✓✓-is one which unwanted conductors , such as
an errant screw, completes a circuit in ways it wasn't designed to be connected
AN OVERHEATED SHORE POWER CONNECTOR PROBLEM COULD BE CAUSED BY
ALL OF THE FOLLOWING EXCEPT: Ans✓✓✓-REVERSE POLARITY
armature Ans✓✓✓-the iron the coil goes on
AS PART OF AN INVERTER INSTALLATION, A BATTERY SWITCH IS REQUIRED IF THE
DC POWER SOURCE HAS A CUMULATIVE CCA RATING OF______ OR MORE.
Ans✓✓✓-801
AS PART OF THE GENERATOR INSTALLATION THE FUEL SELENOID AND THE FUEL
TRANSFER PUMP, SHOULD BE POWERED Ans✓✓✓-ALL THE TIME WHILE THE
GENERATOR IS RUNNING
BASED ON ABYC STANDARDS, A 1,000 WATT 120VAC WATER HEATER, WHOSE
SUPPLY CABLE HAS 105C THERMAL RATING, IS RUN OUTSIDE OF THE ENGINE
ROOM AND IS NOT BUNDLED WITH ANY OTHER CONDUCTORS. WHAT MINIMUM
SIZE WIRE GAUGE WILL BE REQUIRED TO SERVICE THIS CIRCUIT? Ans✓✓✓-16
gauge
