ELC601 FINAL EXAM QUESTIONS AND
ANSWERS GRADED A+ 2026
High dielectric - ANS Todays liquid-filled transformers have their windings immersed in highly
refined mineral oil (combustible), silicone fluid, edible seed oil-based dielectric coolant, or other
acceptable nontoxic liquids that have ___ properties.
NESC - ANS Utilities make up connections on the line side and load side of their transformers
according to the ___ requirements.
Open delta - ANS The ___ connection scheme has the advantage of being able to provide
either 3-phase or 3-phase and single-phase power using only two transformers.
Service point - ANS The ___ is defined in NEC Article 100 as the point of connection between
the facilities of the serving utility and the premises wiring.
The earth - ANS Throughout this country, and for that matter, throughout the world, ___
is(are) the common reference point for all electrical systems.
Ground faults - ANS ___ occur when an underground "hot" conductor comes in contact with
a grounded surface or grounded equipment.
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, Phase-to-ground - ANS GFPE monitors are designed to sense ___ faults only.
Receptacles - ANS GFCI protection can be attained using GFCI circuit breakers or GFCI ___.
Arc - ANS NEC 110.16 has a requirement for placing a notice on a certain equipment to warn
qualified persons of the serious hazard of ___ flash events.
The color rendering probability - ANS ___ is the ability of the lamp to portray objects as
normally as possible.
Wattage rating - ANS Lamps are usually selected according to their ___.
Mercury - ANS For a fluorescent lamp, the inside of the tube is coated with a phosphor (a
fluorescing material), the air is evacuated, and an inert gas plus a small quantity of ___ is
released into the tube.
3,000 - ANS A fluorescent lamp with a 30 in its nomenclature indicates it produces light with
a color temperature of ___ K, which would provide good rendition to warm colors.
EPA - ANS A Toxicity Characteristic Leaching Procedure rating means that the lamp has passed
___ tests regarding the toxicity of the lamp.
Slimline lamps - ANS Instant-start lamps require single-pin bases and are generally called ___.
Dc - ANS Fluorescent lamps can be operated on a ___ circuit if the proper ballasts are used. A
ballast for this type of system contains a current-limiting resistor that provides an inductive kick
to start the lamp.
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
ANSWERS GRADED A+ 2026
High dielectric - ANS Todays liquid-filled transformers have their windings immersed in highly
refined mineral oil (combustible), silicone fluid, edible seed oil-based dielectric coolant, or other
acceptable nontoxic liquids that have ___ properties.
NESC - ANS Utilities make up connections on the line side and load side of their transformers
according to the ___ requirements.
Open delta - ANS The ___ connection scheme has the advantage of being able to provide
either 3-phase or 3-phase and single-phase power using only two transformers.
Service point - ANS The ___ is defined in NEC Article 100 as the point of connection between
the facilities of the serving utility and the premises wiring.
The earth - ANS Throughout this country, and for that matter, throughout the world, ___
is(are) the common reference point for all electrical systems.
Ground faults - ANS ___ occur when an underground "hot" conductor comes in contact with
a grounded surface or grounded equipment.
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, Phase-to-ground - ANS GFPE monitors are designed to sense ___ faults only.
Receptacles - ANS GFCI protection can be attained using GFCI circuit breakers or GFCI ___.
Arc - ANS NEC 110.16 has a requirement for placing a notice on a certain equipment to warn
qualified persons of the serious hazard of ___ flash events.
The color rendering probability - ANS ___ is the ability of the lamp to portray objects as
normally as possible.
Wattage rating - ANS Lamps are usually selected according to their ___.
Mercury - ANS For a fluorescent lamp, the inside of the tube is coated with a phosphor (a
fluorescing material), the air is evacuated, and an inert gas plus a small quantity of ___ is
released into the tube.
3,000 - ANS A fluorescent lamp with a 30 in its nomenclature indicates it produces light with
a color temperature of ___ K, which would provide good rendition to warm colors.
EPA - ANS A Toxicity Characteristic Leaching Procedure rating means that the lamp has passed
___ tests regarding the toxicity of the lamp.
Slimline lamps - ANS Instant-start lamps require single-pin bases and are generally called ___.
Dc - ANS Fluorescent lamps can be operated on a ___ circuit if the proper ballasts are used. A
ballast for this type of system contains a current-limiting resistor that provides an inductive kick
to start the lamp.
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
