AVO SUBSTATION MAINTENANCE II
EXAM QUESTIONS AND ANSWERS 2026
VERIFIED.
There are three general recognized electricity hazards, they are _______, _______, and
_______. - ANS Electrical Shock, Arc Flash, Arc Blast
Appropriate PPE must be used based on the _______ to be performed. - ANS Task
The shock hazard exists when there is a _________ for current to flow through any part of a
person's body. - ANS Potential
The first measure to protect workers from shock is to control the voltage with an appropriate
____________ ___________ procedure. - ANS Lock-out, Tag-out
_________ can be a source of hazards that may be overlooked by the worker. - ANS Weather
Two examples of areas that require special training are: ____________________ and
________________ - ANS Emergency Response Procedures, First Aid & CPR Training
The frequency rating of a transformer is the ___________ system frequency. - ANS normal
@2026/2027 ALLRIGHTS RESERVED.
, If aluminum is used as a ___________ conductor, either on the high voltage winding, low
voltage winding, or both, it is ___________. - ANS Winding, Indicated
The class of a transformer is the type of ___________ employed. - ANS Cooling
The manufacturer's ___________ number is used to __________ the transformer. -
ANS Serial, Identify
The tap changer voltage charts provide the voltage _________ for the different tap positions. -
ANS Levels
The approximate _________ of the major components of a transformer normally included are
core and coil, main tank or case, radiator, and ______. - ANS Weight, Oil
Safety is the responsibility of the __________, therefore, __________ all safety considerations. -
ANS Individual, Review
Always short circuit any current transformer secondary's to avoid _____________ high voltages
that are developed across the secondary terminals of a non-shorted CT. - ANS Dangerous
______________ charging current starts at a relatively high value and rapidly decreases after
the ______________ element of the component has been charged to its full voltage. -
ANS Capacitance, Insulation.
The ____________ current is the single most important component in determining insulation
reliability. - ANS Leakage
@2026/2027 ALLRIGHTS RESERVED.
EXAM QUESTIONS AND ANSWERS 2026
VERIFIED.
There are three general recognized electricity hazards, they are _______, _______, and
_______. - ANS Electrical Shock, Arc Flash, Arc Blast
Appropriate PPE must be used based on the _______ to be performed. - ANS Task
The shock hazard exists when there is a _________ for current to flow through any part of a
person's body. - ANS Potential
The first measure to protect workers from shock is to control the voltage with an appropriate
____________ ___________ procedure. - ANS Lock-out, Tag-out
_________ can be a source of hazards that may be overlooked by the worker. - ANS Weather
Two examples of areas that require special training are: ____________________ and
________________ - ANS Emergency Response Procedures, First Aid & CPR Training
The frequency rating of a transformer is the ___________ system frequency. - ANS normal
@2026/2027 ALLRIGHTS RESERVED.
, If aluminum is used as a ___________ conductor, either on the high voltage winding, low
voltage winding, or both, it is ___________. - ANS Winding, Indicated
The class of a transformer is the type of ___________ employed. - ANS Cooling
The manufacturer's ___________ number is used to __________ the transformer. -
ANS Serial, Identify
The tap changer voltage charts provide the voltage _________ for the different tap positions. -
ANS Levels
The approximate _________ of the major components of a transformer normally included are
core and coil, main tank or case, radiator, and ______. - ANS Weight, Oil
Safety is the responsibility of the __________, therefore, __________ all safety considerations. -
ANS Individual, Review
Always short circuit any current transformer secondary's to avoid _____________ high voltages
that are developed across the secondary terminals of a non-shorted CT. - ANS Dangerous
______________ charging current starts at a relatively high value and rapidly decreases after
the ______________ element of the component has been charged to its full voltage. -
ANS Capacitance, Insulation.
The ____________ current is the single most important component in determining insulation
reliability. - ANS Leakage
@2026/2027 ALLRIGHTS RESERVED.
