Name: 
 

Chapter 6



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The vertical clearance of service conductors above or within three feet (measured horizontally) of surfaces from which they might be reached must be at least ____ feet above the surface.
a.
three
c.
ten
b.
six
d.
twelve
 

 2. 

When using a ____ as a grounding electrode, the continuity of the grounding path must not rely on water meters, filtering devices, or similar equipment.
a.
metal water pipe
c.
plate electrode
b.
steel rod
d.
ground ring
 

 3. 

The ____ service is the service type most often installed in residential wiring.
a.
weatherhead
c.
underground
b.
raceway
d.
overhead
 

 4. 

____ must be used around concentric or eccentric knockouts that are punched or otherwise formed so as to impair the electrical connection to ground.
a.
Sealing locknuts
c.
Bushings
b.
Bonding jumpers
d.
Threadless couplings
 

 5. 

A minimum clearance of ____ feet must be maintained for residential service drop conductors over residential property and driveways where the voltage does not exceed 300 volts to ground.
a.
10
c.
18
b.
12
d.
24
 

 6. 

The ____ conductor is normally referred to as the neutral conductor.
a.
bonding
c.
grounded service
b.
phase
d.
grounded electrode
 



 
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