Week 11 Chapter 5 Part 3 - Pages 5-93 to 5-124

Question 1

The ceiling zone method of pathway distribution for horizontal cabling divides the usable floor area into zones, with each zone measuring a minimum of:

a. 9.3 m² (100 ft²)
b. 70 m² (750 ft²)
c. 46 m² (500 ft²)
d. 23 m² (250 ft²)

Answer 1

d. 23 m² (250 ft²)

p 5-95

In the ceiling zones method of ceiling distribution, the usable floor area should be divided into zones of ≈23.2 m² (250 ft²) to ≈92.9 m² (1000 ft²) each.

Question 2

Elbows, reducers, crossovers, and tees are examples of fittings used to change the _____ of a cable tray.

a. Size, shape, or direction
b. Direction or shape
c. Size or direction
d. Shape
e. Size

Answer 2

c. Size or direction

p 5-106

The fittings used for changing the direction or size of a cable tray include:

• Elbows.
• Reducers.
• Crossovers.
• Tees.

Question 3

Perimeter raceways should be used primarily for large floor areas where a majority of telecommunications service will be along the walls.

a. True
b. False

Answer 3

b. False

p5-111

Perimeter raceways should be used primarily for small floor areas where the majority of telecommunications service will be along the walls as shown in Figure 5.35.

Question 4

When telecommunications cabling pathways run parallel to power cabling pathways, it is recommended to provide a minimum of _____ separation.

a. 152 mm (6 in)
b. 102 mm (4 in)
c. 25.4 mm (1 in)
d. 51 mm (2 in)

Answer 4

d. 51 mm (2 in)

p 5-115

When telecommunications cabling pathways run parallel to electrical pathways, the recommendation is a minimum of ≈51 mm (2 in) separation.

Question 5

The Americans with Disabilities Act (ADA) requires the installation of one interior text capable telephone (TTY) on each floor of a site with _____ or more public telephones.

a. One
b. Two
c. Three
d. Four

Answer 5

d. Four

p 5-119

One interior TTY shall be provided on each floor of a site with four or more public telephones as long as one of the four telephones is located inside the facility and at each bank of four or more public telephones.

Question 6

If non-continuous supports are used as ceiling-based pathways for horizontal cabling, they must allow for cable sag while keeping cables a minimum of _____ above the ceiling grid.

a. 152 mm (6 in)
b. 102 mm (4 in)
c. 77 mm (3 in)
d. 51 mm (2 in)

Answer 6

c. 77 mm (3 in)

p 5-98

Specify that non-continuous supports are installed at intervals not exceeding

≈1.52 m (5 ft) that will minimize cable sag while keeping cables a minimum of

≈77 mm (3 in) above ceiling grid.

Question 7

Which type of cable tray is best described as a ventilated bottom with side rails?

a. Ventilated channel
b. Ladder
c. Spline
d. Ventilated trough

Answer 7

d. Ventilated trough

p 5-105 Table 5.17

Ventilated trough = A ventilated bottom with side rails

Question 8

In the ceiling zone method of distribution, the usable floor area should be divided into zones each measuring:

a. 9.3 sq m (100 sq ft) to 23 sq m (250 sq ft)
b. 23 sq m (250 sq ft) to 56 sq m (600 sq ft)
c. 23 sq m (250 sq ft) to 92.9 m2 (1000 ft2)
d. 56 sq m (600 sq ft) to 92.9 m2 (1000 ft2)

Answer 8

c. 23 sq m (250 sq ft) to 84 sq m (904 sq ft)

p 5-95

In the ceiling zones method of ceiling distribution, the usable floor area should be divided into zones of ≈23.2 m2 (250 ft2) to ≈92.9 m2 (1000 ft2) each.

Question 9

Which of the following is NOT an example of a perimeter pathway?

a. Furniture pathways
b. Surface raceways
c. Multi channel raceways

Answer 9

a. Furniture pathways

p 5-110