ABYC ELECTRICAL 2 EXAM WITH
100% CORRECT ANSWERS
(GRADED A+)
A - Answer-The primary problem with using a series circuit to supply multiple loads is
that:
A. Voltage drop through the circuit will be excessive
B. The capacitance will be excessive
C. Amp draw will be multiplied
D. overcorrect protection device may not work
D - Answer-When testing a temp. gauge, the tech removes the wire from the engine
sending unit and grounds it to the engine block. The gauge then reads full scale. The
gauge did not function before. The problem is:
A. Bad wiring to the sending unit
B. A faulty gauge
C. A bad ground at the gauge
D. A faulty sending unit
B - Answer-Minimum battery receiver capacity allowed based on ABYC standards is:
A. 60min
B. 90min
C. 180min
D. 240min
D - Answer-The max # of terminals allowed to be attached to any one terminal stud
based on ABYC is:
A. 1
B. 2
C. 3
D. 4
B - Answer-How much current should flow through the DC grounding conductor in a 25-
amp DC motor circuit?
,A. 25 amps
B. 0 amps
C. 10 Amps
D. 5 amps
C - Answer-A customer complains that his generator will start from the local control
panel at the generator, but not from the remote control panel at the helm location. Of the
choices given, the most probable cause would be:
A. Bad generator starter solenoid
B. Low voltage at the starter battery
C. Excessive voltage drop across the remote starter switch
D. Loose battery cable clamp at starter
B - Answer-Tech A says that a faulty circuit breaker could require an overhaul. Tech B
says that circuit breakers used in marine applications must be replaced if found
defective which tech is correct?
A. Tech A
B. Tech B
C. Both depending upon circumstances
D. Neither
B - Answer-One horsepower equals how many watts?
A. 1,000 watts
B. 746 watts
C. 536 watts
D. 146 watts
C - Answer-When testing for excessive EMF emission near a conductor or appliances
the tool of choice is a(n)
A. Ohmmeter
B. DVOM
C. Gauss meter
D. inferred sensor
A - Answer-The most common tool used in a corrosion survey is a(n)
A. Portable hull potential meter
B. Ohmmeter with a 1-ohm scale
C. Infared sensor
D. TDR
, B - Answer-If a customer complains of low voltage at the AC panel, the technician
should first:
A. Recalibrate the panel meter
B. Check voltage at the dock pedestal
C. Check the polarity indicator
D. Replace the overcorrect protection device
D - Answer-The max spacing for cable run based on ABYC is:
A. 10 in
B. 12 in
C. 16in
D. 18in
D - Answer-DC grounded conductors on new boats that are also equipped with AC
systems should use _______ insulation:
A. Light blue
B. Black
C. Red
D. Yellow
C - Answer-The max sustainable charging violate acceptable to some gel cell battery
manufacurters is:
A. 13.8V
B. 14.5V
C. 14.1V
D. 13.2V
D - Answer-When clamping a shore power cord and activating AC circuits one by one,
the tech notices that the AC leakage current measured keeps getting higher as each
appliance is turned on. this most likely indicates:
A. an open circuit in the grounding conductor on the dock
B. Excessively high voltage delivered by the utility company
C. Excessive voltage drops in the AC power supply
D. A neutral - to - ground link at the boats AC panel board
D - Answer-On a boat with a 120/140 volt shore power system, line 1 is reading 180V
and line 2 is reading 60V. the most likely cause is
A. Open hit conductor
B. Open ground conductor
C. Reverse polarity
100% CORRECT ANSWERS
(GRADED A+)
A - Answer-The primary problem with using a series circuit to supply multiple loads is
that:
A. Voltage drop through the circuit will be excessive
B. The capacitance will be excessive
C. Amp draw will be multiplied
D. overcorrect protection device may not work
D - Answer-When testing a temp. gauge, the tech removes the wire from the engine
sending unit and grounds it to the engine block. The gauge then reads full scale. The
gauge did not function before. The problem is:
A. Bad wiring to the sending unit
B. A faulty gauge
C. A bad ground at the gauge
D. A faulty sending unit
B - Answer-Minimum battery receiver capacity allowed based on ABYC standards is:
A. 60min
B. 90min
C. 180min
D. 240min
D - Answer-The max # of terminals allowed to be attached to any one terminal stud
based on ABYC is:
A. 1
B. 2
C. 3
D. 4
B - Answer-How much current should flow through the DC grounding conductor in a 25-
amp DC motor circuit?
,A. 25 amps
B. 0 amps
C. 10 Amps
D. 5 amps
C - Answer-A customer complains that his generator will start from the local control
panel at the generator, but not from the remote control panel at the helm location. Of the
choices given, the most probable cause would be:
A. Bad generator starter solenoid
B. Low voltage at the starter battery
C. Excessive voltage drop across the remote starter switch
D. Loose battery cable clamp at starter
B - Answer-Tech A says that a faulty circuit breaker could require an overhaul. Tech B
says that circuit breakers used in marine applications must be replaced if found
defective which tech is correct?
A. Tech A
B. Tech B
C. Both depending upon circumstances
D. Neither
B - Answer-One horsepower equals how many watts?
A. 1,000 watts
B. 746 watts
C. 536 watts
D. 146 watts
C - Answer-When testing for excessive EMF emission near a conductor or appliances
the tool of choice is a(n)
A. Ohmmeter
B. DVOM
C. Gauss meter
D. inferred sensor
A - Answer-The most common tool used in a corrosion survey is a(n)
A. Portable hull potential meter
B. Ohmmeter with a 1-ohm scale
C. Infared sensor
D. TDR
, B - Answer-If a customer complains of low voltage at the AC panel, the technician
should first:
A. Recalibrate the panel meter
B. Check voltage at the dock pedestal
C. Check the polarity indicator
D. Replace the overcorrect protection device
D - Answer-The max spacing for cable run based on ABYC is:
A. 10 in
B. 12 in
C. 16in
D. 18in
D - Answer-DC grounded conductors on new boats that are also equipped with AC
systems should use _______ insulation:
A. Light blue
B. Black
C. Red
D. Yellow
C - Answer-The max sustainable charging violate acceptable to some gel cell battery
manufacurters is:
A. 13.8V
B. 14.5V
C. 14.1V
D. 13.2V
D - Answer-When clamping a shore power cord and activating AC circuits one by one,
the tech notices that the AC leakage current measured keeps getting higher as each
appliance is turned on. this most likely indicates:
A. an open circuit in the grounding conductor on the dock
B. Excessively high voltage delivered by the utility company
C. Excessive voltage drops in the AC power supply
D. A neutral - to - ground link at the boats AC panel board
D - Answer-On a boat with a 120/140 volt shore power system, line 1 is reading 180V
and line 2 is reading 60V. the most likely cause is
A. Open hit conductor
B. Open ground conductor
C. Reverse polarity
