DCI Pathways and Spaces 2

Question 1

What is the minimum clearance required above a suspended ceiling used as a plenum return air pathway when installing cable trays?

Accepted Answer

12 inches

Answer

6 inches

Answer

18 inches

Answer

24 inches

Question 2

Which standard governs the installation of cable trays in the United States?

Accepted Answer

NEMA VE-1

Answer

NFPA 70 (NEC)

Answer

TIA-569

Answer

ANSI/BICSI 002

Question 3

A conduit body that makes a 90-degree change in direction is commonly called a(n):

Accepted Answer

LB fitting

Answer

Elbow sweep

Answer

Offset nipple

Answer

Service entrance head

Question 4

When pulling cable through a conduit, what is the maximum recommended fill ratio for a single cable?

Accepted Answer

53%

Answer

31%

Answer

40%

Answer

60%

Question 5

In a data center, a hot aisle/cold aisle layout primarily affects which pathway and spaces consideration?

Accepted Answer

Underfloor cable routing and airflow management

Answer

Cable tray fill ratios

Answer

Conduit bending radius

Answer

Firestopping requirements

Question 6

What term describes a pathway that runs horizontally between the telecommunications room and the work area outlets?

Accepted Answer

Horizontal pathway

Answer

Backbone pathway

Answer

Campus distributor run

Answer

Interbuilding pathway

Question 7

Which of the following is NOT a typical type of surface raceway used for horizontal cable distribution?

Accepted Answer

Cable tray ladder

Answer

Baseboard raceway

Answer

Multiduct raceway

Answer

Cellular floor raceway