NHIE Prep – Electrical Exam 2025
Questions and Answers 100% Pass
Wire Clearance: __ feet above a walking surface or sidewalks. - ✔✔10
Wire Clearance: __ feet above driveways or backyards. - ✔✔12
Wire Clearance: __ feet above a public street, alleys, truck parking areas. - ✔✔18
Wire Clearance: __ feet above a flat roof. - ✔✔8
Wire Clearance: __ feet above or within __ feet of a pool. - ✔✔22, 10
Wire Clearance: __ feet above a diving board. - ✔✔14
Wire Clearance: __ feet from ground to drip loop. - ✔✔10
Wire Clearance: __ inches over eave, up to __ feet back, for service feed. - ✔✔18, 4
Wire Clearance: __ feet below and to the side of an openable window. - ✔✔3
Dedicated electrical circuits are required for what? - ✔✔The outlets around kitchen
countertops, outlets in bathrooms, for central heating, and for dryers.
An electronic sensor cannot be more than 6 inches off the floor. T or F? - ✔✔True
Incandescent light fixtures over closet shelves need __ inch clearance, fluorescent
need only __ inch. - ✔✔12, 6
How may a grounding electrode conductor be spliced? - ✔✔By using a compression
connector or a weld.
Romex wire can be pulled tightly across bends. T or F? - ✔✔False
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, Any fixture over 50 lbs must be supported independently from the outlet box. T or
F? - ✔✔True
Should knob and tube have insulation? - ✔✔No
Aluminum wire expands and contracts at a __% higher rate than copper wire. -
✔✔30
What is the maximum number of shut-offs at the main panel? - ✔✔6
Non-metallic sheathed cable in an attic or at the top of a joist must be fastened every
__ feet. - ✔✔4
Which appliances do not require a GFCI? - ✔✔Sump pump, waste disposer,
dishwasher, compactor outlet beneath a sink, washing machine.
Where should GFCI protection be used? - ✔✔By water, in basements, on the exterior,
and in the garage.
How many conductor wires does a 250 volt GFCI have? - ✔✔2
If there are dedicated outlets for microwaves or refrigerators in a garage, GFCI's are
not needed. T or F? - ✔✔True
Any receptacle within 6 feet of a wet bar must be GFCI. T or F? - ✔✔True
GFCI has been required since a 1984 ruling of NEC. T or F? - ✔✔True
How does a GFCI work? What amperage is it tripped at? How quickly does it cut
power? - ✔✔By comparing the flow of electrons between the hot and neutral to
detect a leakage. It is tripped at 4-6 ma in 1/40 of a second.
How many wires from the street into a house in a 120-volt system? 240 volt system? -
✔✔2, 3
Where is the electrical system grounded to in most homes? What is another way of
grounding the home if supply plumbing is plastic? - ✔✔The plumbing system,
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
Questions and Answers 100% Pass
Wire Clearance: __ feet above a walking surface or sidewalks. - ✔✔10
Wire Clearance: __ feet above driveways or backyards. - ✔✔12
Wire Clearance: __ feet above a public street, alleys, truck parking areas. - ✔✔18
Wire Clearance: __ feet above a flat roof. - ✔✔8
Wire Clearance: __ feet above or within __ feet of a pool. - ✔✔22, 10
Wire Clearance: __ feet above a diving board. - ✔✔14
Wire Clearance: __ feet from ground to drip loop. - ✔✔10
Wire Clearance: __ inches over eave, up to __ feet back, for service feed. - ✔✔18, 4
Wire Clearance: __ feet below and to the side of an openable window. - ✔✔3
Dedicated electrical circuits are required for what? - ✔✔The outlets around kitchen
countertops, outlets in bathrooms, for central heating, and for dryers.
An electronic sensor cannot be more than 6 inches off the floor. T or F? - ✔✔True
Incandescent light fixtures over closet shelves need __ inch clearance, fluorescent
need only __ inch. - ✔✔12, 6
How may a grounding electrode conductor be spliced? - ✔✔By using a compression
connector or a weld.
Romex wire can be pulled tightly across bends. T or F? - ✔✔False
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, Any fixture over 50 lbs must be supported independently from the outlet box. T or
F? - ✔✔True
Should knob and tube have insulation? - ✔✔No
Aluminum wire expands and contracts at a __% higher rate than copper wire. -
✔✔30
What is the maximum number of shut-offs at the main panel? - ✔✔6
Non-metallic sheathed cable in an attic or at the top of a joist must be fastened every
__ feet. - ✔✔4
Which appliances do not require a GFCI? - ✔✔Sump pump, waste disposer,
dishwasher, compactor outlet beneath a sink, washing machine.
Where should GFCI protection be used? - ✔✔By water, in basements, on the exterior,
and in the garage.
How many conductor wires does a 250 volt GFCI have? - ✔✔2
If there are dedicated outlets for microwaves or refrigerators in a garage, GFCI's are
not needed. T or F? - ✔✔True
Any receptacle within 6 feet of a wet bar must be GFCI. T or F? - ✔✔True
GFCI has been required since a 1984 ruling of NEC. T or F? - ✔✔True
How does a GFCI work? What amperage is it tripped at? How quickly does it cut
power? - ✔✔By comparing the flow of electrons between the hot and neutral to
detect a leakage. It is tripped at 4-6 ma in 1/40 of a second.
How many wires from the street into a house in a 120-volt system? 240 volt system? -
✔✔2, 3
Where is the electrical system grounded to in most homes? What is another way of
grounding the home if supply plumbing is plastic? - ✔✔The plumbing system,
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
