Question 1

What is the recommended MINIMUM separation of unshielded twisted-pair (UTP) cables from fluorescent light fixtures?

Accepted Answer

A)  77 mm (3 in) 
B)  30 mm (5.12 in) 
C)  203 mm (8 in) 
D)  324 mm (12.75 in) 
E)  483 mm (19 in)

Question 2

When specifying telecommunications outlet boxes, all of the following should be considered EXCEPT:

Accepted Answer

A)  Outlet box shall be a minimum of 100 mm (4 in) x 100 mm (4 in) x 76 mm (3 in) 
B)  Outlet boxes should be installed near an electric outlet at the same height 
C)  Different outlet boxes have different support requirements 
D)  Floor mounted telecom outlet boxes should be coordinated with furniture to minimize the potential trip hazard 
E)  Outlet boxes must be of adequate size so that minimum cable bend radius requirements are not exceeded

Question 3

Phase difference is the relationship in time between two waveforms of the same:

Accepted Answer

A)  Power 
B)  Voltage 
C)  Frequency 
D)  Current

Question 4

The headend has several audio-video playback devices within it. What piece of equipment is required to assign their output signals to specific RF carriers on the CATV system?

Accepted Answer

A)  Modulator 
B)  Combiner 
C)  Splitter 
D)  Multiport tap

Question 5

You must place CAT6 cable above a factory floor with automated welding machines and hammer forges. Of the following, what type of shielding would be most effective?

Accepted Answer

A)  Multi-layer braid 
B)  Foil and braid 
C)  Solid metallic conduit 
D)  Flex metallic conduit 
E)  Sch. 40 PVC conduit

Question 6

If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:

Accepted Answer

A)  3 dB 
B)  20 dB 
C)  30 dB 
D)  40 dB 
E)  1000 dB

Question 7

If you have a circuit with 120 volts, 12 amps, and 10 ohms, it has a peak power of ________ watts.

Accepted Answer

A)  1018 
B)  1200 
C)  1440 
D)  2037

Question 8

Which of the following is NOT an advantage of access floor systems?

Accepted Answer

A)  They have a low initial cost 
B)  They are designed for high capacity 
C)  They are aesthetically acceptable for office decor 
D)  Cabling is easily accessible across the entire floor 
E)  Changes can be made quickly with little occupant disruption

Question 9

You are designing a DAS system that has a requirement to supply both RF signal and power to the remote transceivers in the system. Which cable will provide the needed services for this application?

Accepted Answer

A)  Multimode optical fiber cable 
B)  Radiation coaxial cable 
C)  Shielded twisted-pair cable 
D)  Single mode optical fiber cable 
E)  Screened twisted pair (ScTP) cable

Question 10

What is the expected life cycle, in years, of building automation system within a building structure with a life cycle of 40+ years?

Accepted Answer

A)  1 to 2 
B)  2 to 4 
C)  5 to 7 
D)  8 to 12 
E)  12 to 15

Question 11

What is the testing frequency of a Category 6/Class E cable?

Accepted Answer

A)  100 MHz 
B)  200 MHz 
C)  250 MHz 
D)  500 MHz 
E)  600 MHz

Question 12

Geographically speaking, a ______ links two or more distant sites.

Accepted Answer

A)  SAN 
B)  PAN 
C)  LAN 
D)  CAN 
E)  WAN

Question 13

The ________ system is an application used for storing and viewing captured digital radiology image files.

Accepted Answer

A)  CCU 
B)  ICU 
C)  DICOM 
D)  PACS

Question 14

Which one of the following is NOT an advantage of direct-buried cable?

Accepted Answer

A)  Is flexible for future reinforcements or changes 
B)  Has a low initial installation cost 
C)  Can easily bypass obstructions 
D)  Preserves the aesthetic appearance of buildings

Question 15

You are designing a 4.9 GHz microwave system that is using rectangular waveguide from the transceiver to the inside wall of the shelter and an antenna that is to be placed 200 ft up on a 250 ft tower. What type of medium will be best suited to connect the antenna to the transceiver?

Accepted Answer

A)  Circular wave guide 
B)  Elliptical wave guide 
C)  Hard line coaxial 
D)  Rectangular wave guide

Question 16

What is the PERT estimate of time for cable placement on a given job? - Optimistic time is 100 hours - Most likely time is 125 hours - Pessimistic time is 210 hours

Accepted Answer

A)  100 hours 
B)  125 hours 
C)  135 hours 
D)  155 hours 
E)  175 hours

Question 17

Exhibit: The following diagram represents what type of CATV distribution system?

Accepted Answer

A)  Home run 
B)  Trunk and tap 
C)  Video over balanced twisted-pair 
D)  Video over optical fiber

Question 18

You are designing a strobe visual notification system for a fire alarm system. You have a hallway that is 4.6 m (15 ft) wide and 100 m (328 ft) long. How many strobes should be placed in the hallway?

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five

Question 19

When installing outlet boxes in ten private offices in an area which may prove to be difficult to install future additional telecommunications outlets, the MINIMUM quantity of outlet boxes that should be installed is:

Accepted Answer

A)  10 
B)  20 
C)  30 
D)  Based on the type of cabling specified

Question 20

When considering the DAS, which component acts as a bidirectional antenna?

Accepted Answer

A)  Multimode optical fiber cable 
B)  Radiating coaxial cable 
C)  Shielded twisted pair (STP) cable 
D)  Single mode optical fiber cable 
E)  Screened twisted pair (ScTP) cable

Exam 1: BICSI Registered Communications Distribution Designer - RCDD