ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
1. A metallic shore power inlet becomes hot to the touch. Temperature rating of
Which would not be a contributing factor? shore-cord insulation
2. An inter-circuit short can cause: " All of the above; Un-
related circuits to operate
simultaneously; Compo-
nents to work at reduced
capacity; An over-current
situation"
3. Which of the following is addressed by ABYC A-32? Power conditioning and
conversion
4. LED navigation lights are required to meet: 72 Colregs
5. Which of the following are recommended for 3-phase Power conditioning and
shore power? phase-rotation monitor-
ing
6. Which of the following is an example of a power-qual- Nuisance tripping of mag-
ity issue? netic circuit breakers
7. What tool can be used instead of a power-quality an- DVOM
alyzer to measure phase amplitude?
8. All of the following are functions of a generator volt- Control generator power
age regulator EXCEPT: factor
9. A true-DC wind generator might be inadvertently Blocking diode
powered by the batteries if a ________ is not part of the
installation.
10. Which power sources can be seamlessly transferred?
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
" All of the above; AC gen-
erators; Shore power; In-
verters"
11. Which of the following needs to be considered when Proper ventilation of bat-
retrofitting an electric-propulsion engine? teries
12. In a NMEA 2000 digital switching system it is neces- Terminating resistors
sary to use
13. A boat's hull potential is measured: Between a reference cell
and main engine negative
14. Which statement is correct pertaining to a NMEA 2000 " Both a and b; Resistors
system? are to be used only at both
ends of the system;
NMEA cables provide
power and data in a single
cable"
15. Slower than normal engine cranking could be an indi- Battery fully charged
cation of all the following except:
16. Which tool could not-be used to diagnose excessive Ammeter
voltage drop?
17. An advantage of an insulated DC ground system is: Easier detection of ground
faults
18. Which equipment may not need to be changed when Water Heater
a boat built by an international builder using 50 Hz AC
is imported to the US?
19.
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
Which of the following could cause a shore-power ELCI Multiple shore-power in-
main breaker to trip? let neutral conductors on
the load side of the ELCI
are connected
20. The maximum battery cable gauge that can be con- 8
nected to a terminal via wingnut is:
21. VFDs control the speed of electric motors (pumps, frequency
fans, hoists) by regulating ____?
22. Do VFDs typically display fault codes, and how can you Yes, they do; refer to the
determine the nature of a fault? manufacturer's list of fault
codes.
23. According to ____ , seamless transfers between ABYCA-32
sources cannot maintain parallel for more than I sec-
ond
24. True or False: four-wire sensors are the most common FALSE; two- and
configuration in today's engine-control systems. three-wire configurations
are more common.
25. According to ABYC A-32, "synchronization" means amperage
matching all EXCEPT
26. Compared to traditional US power sources, _____ de- three-phase power
livers three times the power with only 1.5 times the
conductor material.
27. In a delta configuration, the phase voltage is _____ the equal to
line voltage
28. Three-phase power ______ than single-phase power is more efficient
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
29. Proper overcurrent protection for a three-phase mo- a triple-pole breaker
tor requires
30. Three-phase induction motors can be damaged by loss of voltage
____ in a three-phase power distribution system.
31. The most common cause of AC ripple from an alterna- Faulty/low-quality rectifier
tor is: diode(s)
32. Based on the Fourier method, total harmonic distor- First and third harmonics
tion is calculated using: only
33. The distortion caused by multiple frequencies in out- Harmonic distortion
put is called:
34. AC voltage transients cause all the following EXCEPT: Capacitance coupling
35. When attempting to diagnose intermittent power Data logging
quality issues, which feature of the power quality an-
alyzer is used?
36. Which function is operational when a block load is Volts per Hz
applied?
37. Which of the following components would NOT pre- Shorted droop CT
vent a generator from creating voltage?
38. The following are adjustments on voltage regulators Load gain
EXCEPT
39. Electricity coming from a solar panel must be ___ be- regulated
fore it's delivered to a battery bank:
40. DC load analysis
Study online at https://quizlet.com/_gzoqsr
1. A metallic shore power inlet becomes hot to the touch. Temperature rating of
Which would not be a contributing factor? shore-cord insulation
2. An inter-circuit short can cause: " All of the above; Un-
related circuits to operate
simultaneously; Compo-
nents to work at reduced
capacity; An over-current
situation"
3. Which of the following is addressed by ABYC A-32? Power conditioning and
conversion
4. LED navigation lights are required to meet: 72 Colregs
5. Which of the following are recommended for 3-phase Power conditioning and
shore power? phase-rotation monitor-
ing
6. Which of the following is an example of a power-qual- Nuisance tripping of mag-
ity issue? netic circuit breakers
7. What tool can be used instead of a power-quality an- DVOM
alyzer to measure phase amplitude?
8. All of the following are functions of a generator volt- Control generator power
age regulator EXCEPT: factor
9. A true-DC wind generator might be inadvertently Blocking diode
powered by the batteries if a ________ is not part of the
installation.
10. Which power sources can be seamlessly transferred?
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
" All of the above; AC gen-
erators; Shore power; In-
verters"
11. Which of the following needs to be considered when Proper ventilation of bat-
retrofitting an electric-propulsion engine? teries
12. In a NMEA 2000 digital switching system it is neces- Terminating resistors
sary to use
13. A boat's hull potential is measured: Between a reference cell
and main engine negative
14. Which statement is correct pertaining to a NMEA 2000 " Both a and b; Resistors
system? are to be used only at both
ends of the system;
NMEA cables provide
power and data in a single
cable"
15. Slower than normal engine cranking could be an indi- Battery fully charged
cation of all the following except:
16. Which tool could not-be used to diagnose excessive Ammeter
voltage drop?
17. An advantage of an insulated DC ground system is: Easier detection of ground
faults
18. Which equipment may not need to be changed when Water Heater
a boat built by an international builder using 50 Hz AC
is imported to the US?
19.
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
Which of the following could cause a shore-power ELCI Multiple shore-power in-
main breaker to trip? let neutral conductors on
the load side of the ELCI
are connected
20. The maximum battery cable gauge that can be con- 8
nected to a terminal via wingnut is:
21. VFDs control the speed of electric motors (pumps, frequency
fans, hoists) by regulating ____?
22. Do VFDs typically display fault codes, and how can you Yes, they do; refer to the
determine the nature of a fault? manufacturer's list of fault
codes.
23. According to ____ , seamless transfers between ABYCA-32
sources cannot maintain parallel for more than I sec-
ond
24. True or False: four-wire sensors are the most common FALSE; two- and
configuration in today's engine-control systems. three-wire configurations
are more common.
25. According to ABYC A-32, "synchronization" means amperage
matching all EXCEPT
26. Compared to traditional US power sources, _____ de- three-phase power
livers three times the power with only 1.5 times the
conductor material.
27. In a delta configuration, the phase voltage is _____ the equal to
line voltage
28. Three-phase power ______ than single-phase power is more efficient
, ABYC Advanced Pretest
Study online at https://quizlet.com/_gzoqsr
29. Proper overcurrent protection for a three-phase mo- a triple-pole breaker
tor requires
30. Three-phase induction motors can be damaged by loss of voltage
____ in a three-phase power distribution system.
31. The most common cause of AC ripple from an alterna- Faulty/low-quality rectifier
tor is: diode(s)
32. Based on the Fourier method, total harmonic distor- First and third harmonics
tion is calculated using: only
33. The distortion caused by multiple frequencies in out- Harmonic distortion
put is called:
34. AC voltage transients cause all the following EXCEPT: Capacitance coupling
35. When attempting to diagnose intermittent power Data logging
quality issues, which feature of the power quality an-
alyzer is used?
36. Which function is operational when a block load is Volts per Hz
applied?
37. Which of the following components would NOT pre- Shorted droop CT
vent a generator from creating voltage?
38. The following are adjustments on voltage regulators Load gain
EXCEPT
39. Electricity coming from a solar panel must be ___ be- regulated
fore it's delivered to a battery bank:
40. DC load analysis
