Arizona Department of
Public Safety Arizona
Generator Technician Exam
Plan
,QUESTIONS
Question 1
Three briefs require, in order: (1) “Scheduled service procedures, load bank
testing, oil and filter analysis, fuel quality testing, and battery testing”; (2)
“Microprocessor-based digital controllers, analog meters, alarm annunciators,
and engine protection shutdowns (overcrank, overspeed, high temperature, low
oil pressure)”; (3) “Brushless excitation, static excitation, permanent magnet
generators (PMGs), and field flashing”. Which sequence of focus areas fits all
three?
A. Control Panels → Preventive Maintenance → Excitation Systems
B. Preventive Maintenance → Excitation Systems → Control Panels
C. Preventive Maintenance → Control Panels → Excitation Systems
D. Excitation Systems → Control Panels → Preventive Maintenance
Correct Answer: C
Full Explanation: Preventive Maintenance: Scheduled service procedures, load bank testing, oil
and filter analysis, fuel quality testing, and battery testing. Control Panels: Microprocessor-based
digital controllers, analog meters, alarm annunciators, and engine protection shutdowns
(overcrank, overspeed, high temperature, low oil pressure). Excitation Systems: Brushless
excitation, static excitation, permanent magnet generators (PMGs), and field flashing. A: Positions
1, 2 do not preserve the corresponding task-to-focus relationships. B: Positions 2, 3 do not
preserve the corresponding task-to-focus relationships. D: Positions 1, 3 do not preserve the
corresponding task-to-focus relationships.
2
,QUESTIONS
Question 2
A comparison covers “Starting Systems”, “Fuel Systems”,
“Microprocessor-based digital controllers, analog meters, alarm annunciators,
and engine protection shutdowns”, “Alternator Components”. Which
association preserves the correct relationship? Pay particular attention to the
role of “Rotor, stator, armature, field windings, exciter, slip rings, and
brushes”.
A. Alternator Components — overcrank, overspeed, high temperature, low oil pressure
B. Alternator Components — Carburetors, gas pressure regulators, fuel injection systems, fuel
pumps, filters, storage tanks, and safety shut-off valves
C. Alternator Components — Rotor, stator, armature, field windings, exciter, slip rings, and
brushes
D. Alternator Components — DC starting motors, solenoid switches, battery charging
alternators, and battery types, maintenance, and sizing
Correct Answer: C
Full Explanation: Alternator Components: Rotor, stator, armature, field windings, exciter, slip
rings, and brushes. A: This option instead describes the following different focus:
Microprocessor-based digital controllers, analog meters, alarm annunciators, and engine protection
shutdowns: overcrank, overspeed, high temperature, low oil pressure. B: This option instead
describes the following different focus: Fuel Systems: Carburetors, gas pressure regulators, fuel
injection systems, fuel pumps, filters, storage tanks, and safety shut-off valves. D: This option
instead describes the following different focus: Starting Systems: DC starting motors, solenoid
switches, battery charging alternators, and battery types, maintenance, and sizing.
Question 3
A brief initially required “Rotor, stator, armature, field windings, exciter, slip
rings, and brushes” for “Alternator Components”, but now concerns “Starting
Systems”. Which task matches the revised requirement?
A. DC starting motors, solenoid switches, battery charging alternators, and battery types,
maintenance, and sizing
B. Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote cooling
configurations
C. National Electrical Code (NEC—specifically Articles 445 and 702), NFPA 110 (Standard for
Emergency and Standby Power Systems), and local jurisdiction compliance
D. Rotor, stator, armature, field windings, exciter, slip rings, and brushes
Correct Answer: A
Full Explanation: Starting Systems: DC starting motors, solenoid switches, battery charging
alternators, and battery types, maintenance, and sizing. Alternator Components: Rotor, stator,
armature, field windings, exciter, slip rings, and brushes. B: This describes “Cooling Systems”,
rather than the requested focus. C: This describes “Codes and Standards”, rather than the
requested focus. D: This describes “Alternator Components”, rather than the requested focus.
3
, QUESTIONS
Question 4
Compare “Lubrication Systems” with “Cooling Systems”. Which paired
descriptions match them in that order?
A. First: Oil pumps, filters, oil coolers, pressure regulation, and viscosity management; second:
Oil pumps, filters, oil coolers, pressure regulation, and viscosity management
B. First: Oil pumps, filters, oil coolers, pressure regulation, and viscosity management; second:
Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote cooling
configurations
C. First: Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote
cooling configurations; second: Oil pumps, filters, oil coolers, pressure regulation, and
viscosity management
D. First: Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote
cooling configurations; second: Radiators, heat exchangers, water pumps, thermostats,
coolant types, and remote cooling configurations
Correct Answer: B
Full Explanation: Lubrication Systems: Oil pumps, filters, oil coolers, pressure regulation, and
viscosity management. Cooling Systems: Radiators, heat exchangers, water pumps, thermostats,
coolant types, and remote cooling configurations. A: Repeating the first assignment leaves the
second requirement without its own matching focus. C: The two roles are reversed: the first
assignment belongs with the second focus, and vice versa. D: Repeating the second assignment
does not address the first requirement.
Question 5
A brief initially required “Diesel, natural gas, and liquid propane-fueled
engines; two-stroke and four-stroke operating cycles” for “Engine Operation
and Design”, but now concerns “Electromagnetism”. Which task matches the
revised requirement?
A. Principles of electromagnetic induction (Faraday's Law), magnetic fields, flux, inductance,
and capacitance
B. Diesel, natural gas, and liquid propane-fueled engines; two-stroke and four-stroke operating
cycles
C. Carburetors, gas pressure regulators, fuel injection systems, fuel pumps, filters, storage
tanks, and safety shut-off valves
D. Reactive droop compensation, cross-current (circulating current) compensation, and
VAR/power factor sharing
Correct Answer: A
Full Explanation: Electromagnetism: Principles of electromagnetic induction (Faraday's Law),
magnetic fields, flux, inductance, and capacitance. Engine Operation and Design: Diesel, natural
gas, and liquid propane-fueled engines; two-stroke and four-stroke operating cycles. B: This
describes “Engine Operation and Design”, rather than the requested focus. C: This describes “Fuel
Systems”, rather than the requested focus. D: This describes “Parallel Operation”, rather than the
requested focus.
4
Public Safety Arizona
Generator Technician Exam
Plan
,QUESTIONS
Question 1
Three briefs require, in order: (1) “Scheduled service procedures, load bank
testing, oil and filter analysis, fuel quality testing, and battery testing”; (2)
“Microprocessor-based digital controllers, analog meters, alarm annunciators,
and engine protection shutdowns (overcrank, overspeed, high temperature, low
oil pressure)”; (3) “Brushless excitation, static excitation, permanent magnet
generators (PMGs), and field flashing”. Which sequence of focus areas fits all
three?
A. Control Panels → Preventive Maintenance → Excitation Systems
B. Preventive Maintenance → Excitation Systems → Control Panels
C. Preventive Maintenance → Control Panels → Excitation Systems
D. Excitation Systems → Control Panels → Preventive Maintenance
Correct Answer: C
Full Explanation: Preventive Maintenance: Scheduled service procedures, load bank testing, oil
and filter analysis, fuel quality testing, and battery testing. Control Panels: Microprocessor-based
digital controllers, analog meters, alarm annunciators, and engine protection shutdowns
(overcrank, overspeed, high temperature, low oil pressure). Excitation Systems: Brushless
excitation, static excitation, permanent magnet generators (PMGs), and field flashing. A: Positions
1, 2 do not preserve the corresponding task-to-focus relationships. B: Positions 2, 3 do not
preserve the corresponding task-to-focus relationships. D: Positions 1, 3 do not preserve the
corresponding task-to-focus relationships.
2
,QUESTIONS
Question 2
A comparison covers “Starting Systems”, “Fuel Systems”,
“Microprocessor-based digital controllers, analog meters, alarm annunciators,
and engine protection shutdowns”, “Alternator Components”. Which
association preserves the correct relationship? Pay particular attention to the
role of “Rotor, stator, armature, field windings, exciter, slip rings, and
brushes”.
A. Alternator Components — overcrank, overspeed, high temperature, low oil pressure
B. Alternator Components — Carburetors, gas pressure regulators, fuel injection systems, fuel
pumps, filters, storage tanks, and safety shut-off valves
C. Alternator Components — Rotor, stator, armature, field windings, exciter, slip rings, and
brushes
D. Alternator Components — DC starting motors, solenoid switches, battery charging
alternators, and battery types, maintenance, and sizing
Correct Answer: C
Full Explanation: Alternator Components: Rotor, stator, armature, field windings, exciter, slip
rings, and brushes. A: This option instead describes the following different focus:
Microprocessor-based digital controllers, analog meters, alarm annunciators, and engine protection
shutdowns: overcrank, overspeed, high temperature, low oil pressure. B: This option instead
describes the following different focus: Fuel Systems: Carburetors, gas pressure regulators, fuel
injection systems, fuel pumps, filters, storage tanks, and safety shut-off valves. D: This option
instead describes the following different focus: Starting Systems: DC starting motors, solenoid
switches, battery charging alternators, and battery types, maintenance, and sizing.
Question 3
A brief initially required “Rotor, stator, armature, field windings, exciter, slip
rings, and brushes” for “Alternator Components”, but now concerns “Starting
Systems”. Which task matches the revised requirement?
A. DC starting motors, solenoid switches, battery charging alternators, and battery types,
maintenance, and sizing
B. Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote cooling
configurations
C. National Electrical Code (NEC—specifically Articles 445 and 702), NFPA 110 (Standard for
Emergency and Standby Power Systems), and local jurisdiction compliance
D. Rotor, stator, armature, field windings, exciter, slip rings, and brushes
Correct Answer: A
Full Explanation: Starting Systems: DC starting motors, solenoid switches, battery charging
alternators, and battery types, maintenance, and sizing. Alternator Components: Rotor, stator,
armature, field windings, exciter, slip rings, and brushes. B: This describes “Cooling Systems”,
rather than the requested focus. C: This describes “Codes and Standards”, rather than the
requested focus. D: This describes “Alternator Components”, rather than the requested focus.
3
, QUESTIONS
Question 4
Compare “Lubrication Systems” with “Cooling Systems”. Which paired
descriptions match them in that order?
A. First: Oil pumps, filters, oil coolers, pressure regulation, and viscosity management; second:
Oil pumps, filters, oil coolers, pressure regulation, and viscosity management
B. First: Oil pumps, filters, oil coolers, pressure regulation, and viscosity management; second:
Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote cooling
configurations
C. First: Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote
cooling configurations; second: Oil pumps, filters, oil coolers, pressure regulation, and
viscosity management
D. First: Radiators, heat exchangers, water pumps, thermostats, coolant types, and remote
cooling configurations; second: Radiators, heat exchangers, water pumps, thermostats,
coolant types, and remote cooling configurations
Correct Answer: B
Full Explanation: Lubrication Systems: Oil pumps, filters, oil coolers, pressure regulation, and
viscosity management. Cooling Systems: Radiators, heat exchangers, water pumps, thermostats,
coolant types, and remote cooling configurations. A: Repeating the first assignment leaves the
second requirement without its own matching focus. C: The two roles are reversed: the first
assignment belongs with the second focus, and vice versa. D: Repeating the second assignment
does not address the first requirement.
Question 5
A brief initially required “Diesel, natural gas, and liquid propane-fueled
engines; two-stroke and four-stroke operating cycles” for “Engine Operation
and Design”, but now concerns “Electromagnetism”. Which task matches the
revised requirement?
A. Principles of electromagnetic induction (Faraday's Law), magnetic fields, flux, inductance,
and capacitance
B. Diesel, natural gas, and liquid propane-fueled engines; two-stroke and four-stroke operating
cycles
C. Carburetors, gas pressure regulators, fuel injection systems, fuel pumps, filters, storage
tanks, and safety shut-off valves
D. Reactive droop compensation, cross-current (circulating current) compensation, and
VAR/power factor sharing
Correct Answer: A
Full Explanation: Electromagnetism: Principles of electromagnetic induction (Faraday's Law),
magnetic fields, flux, inductance, and capacitance. Engine Operation and Design: Diesel, natural
gas, and liquid propane-fueled engines; two-stroke and four-stroke operating cycles. B: This
describes “Engine Operation and Design”, rather than the requested focus. C: This describes “Fuel
Systems”, rather than the requested focus. D: This describes “Parallel Operation”, rather than the
requested focus.
4
