ABYC Electrical 2 questions with verified answers
____________ procedures are important so that another worker or the owner
does not mistakenly activate a partially disassembled device or circuit.
a. carefull
b. ABYC excepted
c. organized
d. lockout/tagout Ans✓✓✓-D
1 ampere of current is equivalent to ________
a. 100mA
b. 10mA
C.100.1mA
D. 1,000 mA Ans✓✓✓-D
A "dropped neutral" conductor in a 240/120V shore power system will most likely
show up as:
A. nuisance tripping of the AC breaker
B. Nuisance tripping of an appliance branch circuit breaker
C. A loud humming noise emitting from an onboard television
D. Burned out 120V appliance Ans✓✓✓-D
,A clearance of at least _____inches should exist between conductors and water
cooled exhaust, and a clearance of at least _____ inches between conductors and
dry exhaust components.
A. 3 and 8
B.1.5 and 7
C. 2 and 9
D. 3 and 6 Ans✓✓✓-c
A customer complains about a revers polarity problem. All of the following are
likely causes of the problem except:
A. Improperly wired shore power cord
B. Improperly wired shore power inept recepticals
C. An open neutral
D. Reversal of the hot and neutral conductors in the AC panel feeder cable
Ans✓✓✓-c
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 Ans✓✓✓-C
,A customer complains that the indicator lights have a very short life on the DC
panel board. Possible causes of this problem are all of the following Except!
A. Vibration
B. Over voltage to indicator light
C. Poor ground
D. Excessive heat buildup Ans✓✓✓-C
A customer complaints that certain electronic components (fed from the panel
board) malfunction during engine cranking. Probable causes are all of the
following EXCEPT.
A. Undersized conductor
B. Faulty Battery Switch
C. Undersized cranking battery
D. loose connections
E. undersized DC grounding conductor Ans✓✓✓-C
A device installed in series with the AC grounding conductor of the shore power
cable to effectively block low voltage (DC) galvanic current, but permits the
passage of alternating current AC
A. GFCI
B. Galvanic Isolator
C. Capacitor
, D. Solenoid Ans✓✓✓-B
A device inteneded for the protection of personnel that functions to de-enegrgize
a circuit, within an established period of time when a current to ground exceeds
some predetermined value that is less than that required to operate the
overcorrect protective device of the supply circuit
A. GFCI
B. Galvanic Isolator
C. Capacitor
D. Solenoid Ans✓✓✓-A
A polarity indicator light that is glowing more dimly than normal could be an
indication of/
A. An open circuit in the neutral - to - ground link at an AC generator
B. An open circuit in the hot wire connection
C. A ground connection with very low impedance
D. Excessive AC frequency Ans✓✓✓-A
A reverse polarity indicator should be connected between
A. Neutral and ground
B. AC ground and DC neg
C. Hot and ground
D. Hot and neutral Ans✓✓✓-A
____________ procedures are important so that another worker or the owner
does not mistakenly activate a partially disassembled device or circuit.
a. carefull
b. ABYC excepted
c. organized
d. lockout/tagout Ans✓✓✓-D
1 ampere of current is equivalent to ________
a. 100mA
b. 10mA
C.100.1mA
D. 1,000 mA Ans✓✓✓-D
A "dropped neutral" conductor in a 240/120V shore power system will most likely
show up as:
A. nuisance tripping of the AC breaker
B. Nuisance tripping of an appliance branch circuit breaker
C. A loud humming noise emitting from an onboard television
D. Burned out 120V appliance Ans✓✓✓-D
,A clearance of at least _____inches should exist between conductors and water
cooled exhaust, and a clearance of at least _____ inches between conductors and
dry exhaust components.
A. 3 and 8
B.1.5 and 7
C. 2 and 9
D. 3 and 6 Ans✓✓✓-c
A customer complains about a revers polarity problem. All of the following are
likely causes of the problem except:
A. Improperly wired shore power cord
B. Improperly wired shore power inept recepticals
C. An open neutral
D. Reversal of the hot and neutral conductors in the AC panel feeder cable
Ans✓✓✓-c
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 Ans✓✓✓-C
,A customer complains that the indicator lights have a very short life on the DC
panel board. Possible causes of this problem are all of the following Except!
A. Vibration
B. Over voltage to indicator light
C. Poor ground
D. Excessive heat buildup Ans✓✓✓-C
A customer complaints that certain electronic components (fed from the panel
board) malfunction during engine cranking. Probable causes are all of the
following EXCEPT.
A. Undersized conductor
B. Faulty Battery Switch
C. Undersized cranking battery
D. loose connections
E. undersized DC grounding conductor Ans✓✓✓-C
A device installed in series with the AC grounding conductor of the shore power
cable to effectively block low voltage (DC) galvanic current, but permits the
passage of alternating current AC
A. GFCI
B. Galvanic Isolator
C. Capacitor
, D. Solenoid Ans✓✓✓-B
A device inteneded for the protection of personnel that functions to de-enegrgize
a circuit, within an established period of time when a current to ground exceeds
some predetermined value that is less than that required to operate the
overcorrect protective device of the supply circuit
A. GFCI
B. Galvanic Isolator
C. Capacitor
D. Solenoid Ans✓✓✓-A
A polarity indicator light that is glowing more dimly than normal could be an
indication of/
A. An open circuit in the neutral - to - ground link at an AC generator
B. An open circuit in the hot wire connection
C. A ground connection with very low impedance
D. Excessive AC frequency Ans✓✓✓-A
A reverse polarity indicator should be connected between
A. Neutral and ground
B. AC ground and DC neg
C. Hot and ground
D. Hot and neutral Ans✓✓✓-A
