BISCI chapter 8

Question 1

The “L” rating of a fire-rating classification is the Largest Air Leakage rate, but does not simulate smoke leakage through a firestop assembly

Answer 1

In addition to voltage protection, this type must protect against sneak current

Question 2

Select the 6 components of a telecommunications bonding and grounding system.

Answer 2

Backbone bonding conductor,
Primary bonding busbar,
Rack bonding busbar,
Secondary bonding busbar,
Telecommunications bonding backbone,
Telecommunications bonding conductor

Question 3

What are the installation requirements for the BBCs?

Answer 3

Every 3rd floor and the top floor

Question 4

What material(s) is used for bonding conductors?

Answer 4

copper

Question 5

What are the 2 irreversible termination methods used when terminating bonding conductors?

Answer 5

Compression type,

Exothermic welding

Question 6

Select the appropriate causes of sneak current

Answer 6

Power faults, which are too low in voltage to operate primary protectors.,

Station equipment that will draw excess current and overheat station wire.,

Induction from power lines

Question 7

What is the PBB (TMGB) connected to?

Answer 7

The correct answer is: Directly bonded to the electrical ground system, usually at the electrical service equipment ground

Question 8

How does a fuseless primary protector protect against overcurrent situations

Answer 8

installed with a fine-gauge fuse wire, acting as a fuse link, on the exposed line side

Question 9

What is the minimum wire gauge of the TBB?

Answer 9

6

Question 10

Bonding is the connection, intended to safely and effectively equalize, the potential differences between two metallic items.

Answer 10

True