RCDD-001

RCDD-001 practice questions, page 14 of 15, with answer review and explanations.

Question 66

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

  1. 9.3 sq m (100 sq ft) to 23 sq m (250 sq ft)
  2. 23 sq m (250 sq ft) to 56 sq m (600 sq ft)
  3. 23 sq m (250 sq ft) to 84 sq m (904 sq ft)
  4. 56 sq m (600 sq ft) to 84 sq m (904 sq ft)
  5. 56 sq m (600 sq ft) to 100 sq m (1,100 sq ft)

Question 67

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

  1. Ventilated channel
  2. Ladder
  3. Spline
  4. Ventilated trough
  5. Basket tray

Question 68

The standard floor space coverage area for each building automation system (BAS) is a BAS outlet or device for every ________ of floor space.

  1. 9.3 sq m (100 sq ft)
  2. 23 sq m (250 sq ft)
  3. 31 sq m (330 sq ft)
  4. 56 sq m (600 sq ft)
  5. 84 sq m (904 sq ft)

Question 69

Perimeter raceway systems should be used primarily for:

  1. Underfloor pathway
  2. Apartments or hotels where molding is accessible in the work area
  3. Warehouses with minimal telecommunications services
  4. Small floor areas where the majority of telecommunication services will be along the walls
  5. Equipment rooms where cable tray is cost prohibitive

Question 70

You are designing a horizontal distribution system that will have a zone box located 71.6 m (235 ft) away from the telecommunications room (TR). A 50 mm (2 in) conduit is designed from the TR to a pull box located 36.6 m (120 ft) away from the TR. A 1 1/2 inch conduit is designed from the pull box to the zone box located 35.1 m (115 ft) beyond the pull box. Assuming no conduit bends, and excluding the TR and zone box, what is the total number of pull boxes/pull points required in this horizontal conduit system between the telecommunications room (TR) and zone box?

  1. 2
  2. 3
  3. 4
  4. 5