Deck 5: Bonding

Question 1

Exposed structural metal that is interconnected to form a metal building frame that is not intentionally grounded and is likely to become ___________________ is required to be bonded.

Answer 1

energized

Question 2

"Normal" bonding methods are considered adequate for most circuits.

Answer 2

True

Question 3

Special assured bonding is required for some systems and circuits, including the service (250.92), over-____ volts-to-ground circuits (250.97), and hazardous locations (250.100).

A) 50
B) 100
C) 200
D) 250

Answer 3

D

Question 4

The term "____" is defined in NEC Article 100 as "connected to establish electrical continuity and conductivity."

A) bonded (bonding)
B) bended (bending)
C) shunted (shunting)
D) grounded (grounding)

Question 5

When bonding metal equipment is installed remotely from the service equipment, the metal raceway and meter enclosure must be bonded to the ____.

A) current transformer
B) grounding electrode
C) system neutral
D) transformer

Question 6

Bonding is required to be provided where necessary to ensure electrical continuity and the capacity to conduct safely any ____________________ likely to be imposed.

Question 7

According to the Code, which of the following is found in a Class II location?

A) flammable vapors
B) combustible dust
C) fibers
D) flyings

Question 8

Metal water pipes and structural metal qualify as grounding electrodes.

Question 9

All metal enclosures containing an ungrounded ("hot") service conductor are bonded together by use of the grounded ____ conductor.

A) supply-side
B) service
C) exit
D) entrance

Question 10

It is not uncommon for electrical designers to require an equipment grounding conductor to be installed in every raceway even though the raceway is metal and recognized in the NEC as an equipment grounding conductor.