Topic 24, Residential Cabling

Question 1

You have just finished a design calling for 15 telecommunications outlets. You received word that the owner has increased his requirements by 40%. What size commercial DD
(distribution device) is required to accommodate the increase?

A. 660 mm (26 in)
B. 1015 mm (40 in)
C. 1346 mm (53 in)
D. 1676 mm (66 in)

Answer 1

C. 1346 mm (53 in)

Question 2

You are designing distribution for a seven unit townhouse with in slab conduits. What is the
MINIMUM number of 27 mm (1 in) rigid PVC Type 2 or metallic conduit that is required to satisfy distribution to each unit?

A. Three
B. Four
C. Five
D. Seven
E. Fourteen

Answer 2

D. Seven

Question 3

You are designing a multi-story dwelling and need to place the CTR’s. Every floor is not available. What is the alternate spacing for the CTRs?

A. Every 2 floors
B. Every 3 floors
C. Every 4 floors
D. Every 5 floors
E. 1st floor and midway up through the height of the building

Answer 3

B. Every 3 floors

Question 4

Which service is NOT typical of Grade 1?

A. Telephone
B. Multimedia
C. Data
D. Television

Answer 4

B. Multimedia

Question 5

You are designing a system requiring the transmission of data. Your system must perform higher than ________ kHz in order to do so.

A. 4
B. 8
C. 10
D. 16
E. 32

Answer 5

C. 10

Question 6

To accommodate telephone, data, CATV, security and multimedia, a MINIMUM of
________ strands of optical fiber auxiliary disconnect outlet (ADO) cable should be provided.

A. Two
B. Four
C. Five
D. Six
E. Eight

Answer 6

B. Four