VDV Grounding & Bonding 2

Question 1

What type of conductor material is preferred for telecommunications bonding and grounding conductors?

Accepted Answer

Copper

Answer

Aluminum

Answer

Steel

Answer

Tinned copper-clad aluminum

Question 2

How should bonding conductors be routed to minimize impedance at high frequencies?

Accepted Answer

As short and straight as possible, avoiding sharp bends

Answer

In long loops to distribute inductance

Answer

Coiled near the equipment for strain relief

Answer

Through conduit with maximum number of bends allowed

Question 3

Which connection method is required between the TMGB and the building's grounding electrode system (GES)?

Accepted Answer

A bonding conductor connected to the nearest available grounding electrode

Answer

A wireless inductive coupling system

Answer

A shared neutral conductor from the electrical panel

Answer

An optical isolation transformer

Question 4

At what maximum intervals should the TBB be bonded to metallic building structural elements according to ANSI/J-STD-607?

Accepted Answer

Every third floor or 4 floors maximum

Answer

Every floor without exception

Answer

Only at the top and bottom of the building

Answer

Every 10 floors

Question 5

What is the recommended maximum resistance for a telecommunications grounding system to the earth electrode?

Accepted Answer

5 ohms or less

Answer

25 ohms or less

Answer

100 ohms or less

Answer

1 ohm or less

Question 6

What is the function of a bonding conductor for telecommunications (BCT)?

Accepted Answer

To bond equipment frames and racks to the TGB within a telecommunications room

Answer

To carry voice signals between buildings

Answer

To connect the TMGB to the electrical service entrance

Answer

To ground fiber optic cable sheaths

Question 7

Why is it important to avoid ground loops in telecommunications bonding systems?

Accepted Answer

Ground loops can induce noise and interference into telecommunications circuits

Answer

Ground loops increase the physical weight of cabling

Answer

Ground loops reduce the available bandwidth of copper cables

Answer

Ground loops cause fiber optic attenuation