Question 1

Using Ohms law, a circuit of 120 volts and a resistance of 15 ohms will have a current of ________ amps.

Accepted Answer

A)  5 
B)  8 
C)  10 
D)  12 
E)  15

Question 2

The electromagnetic spectrum of visible light lies in the ___________ frequency range of the spectrum.

Accepted Answer

A)  1 GHz 
B)  100 GHz 
C)  10 THz 
D)  1 PHz 
E)  100 PHz

Question 3

Which type of protection for electrical power stations provide isolation against a rise in potential of station ground and also provide drainage protection against longitudinally-induced voltages?

Accepted Answer

A)  Isolating transformers 
B)  Neutralizing transformers 
C)  Mutual drainage reactors 
D)  Unit-type neutralizing transformers 
E)  2-winding neutralizing transformers

Question 4

BICSI recommends that any trench ________ or more deep must be shored to prevent cave in.

Accepted Answer

A)  1.2 m (4 ft) 
B)  1.5 m (5 ft) 
C)  1.7 m (5.5 ft) 
D)  1.83 m (6 ft) 
E)  2.1 m (7 ft)

Question 5

What element is typically NOT part of a paging system?

Accepted Answer

A)  Strobe 
B)  Distribution 
C)  Amplification 
D)  Loudspeakers

Question 6

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of:

Accepted Answer

A)  Zero 
B)  0.707A and a frequency of f 
C)  A and a frequency of 2f 
D)  2A and a frequency of f 
E)  2A and a frequency of 2f

Question 7

A common mode (CM) signal can be converted to a differential mode (DM) signal as a result of a(n):

Accepted Answer

A)  Unbalanced circuit 
B)  Grounded circuit 
C)  Poorly timed signal 
D)  Improper dielectric material

Question 8

Omnidirectional antennas broadcast equally in all directions of only ________ cross section(s) of their toroidal (doughnut-shaped) three-dimensional radiation pattern.

Accepted Answer

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

Question 9

Which of the following is NOT true about consolidation points?

Accepted Answer

A)  They are not to be used for direct connections to active equipment. 
B)  They allow horizontal cables to be extended into work area pathways. 
C)  They are to be terminated on separate connectors for each individual user. 
D)  The maximum length of cable from the consolidation point (CP) to the outlet varies by media type.

Question 10

You are working with the Sheriff's Department to develop a public safety wireless network that will be secured from interference and have the capability of delivering up 10 Mbps subscriber speed. What microwave frequency should be used to best meet these needs?

Accepted Answer

A)  2.4 Ghz 
B)  4.9 Ghz 
C)  5.0 Ghz 
D)  5.3 Ghz

Question 11

If you are using a building automation system (BAS) protocol operating on RF media at 19,200 b/s in the 868 MHz band, which protocol are you using?

Accepted Answer

A)  European installation bus 
B)  Lon Talk 
C)  MODBUS 
D)  LonMark 
E)  Modicon

Question 12

A work breakdown structure is:

Accepted Answer

A)  Influenced by market conditions at the time of the project execution 
B)  A set of accounting codes 
C)  Reflective of project organizational structure 
D)  Easily standardized 
E)  A replacement for a Gantt chart

Question 13

You are designing a large equipment room (ER) that will house many servers, switches, backup storage drives, and other communications equipment including peripheral devices. To prevent problems from harmonic currents that can be created by switching power supplies, you should arrange for:

Accepted Answer

A)  Isolated grounding 
B)  Oversized neutral and grounding conductors 
C)  Surge protection on power supply 
D)  A 3-phase feeder supply separate from the building supply 
E)  Power filtering at the service panel

Question 14

The three electronic security system (ESS) concepts the consultant needs to understand when creating an ESS system are threats, countermeasures, and:

Accepted Answer

A)  Risks 
B)  Mitigation techniques 
C)  Asset control 
D)  Integration 
E)  Intrusion detection

Question 15

If a telecommunications grounding busbar is installed in the telecommunications room (TR) with the identifier of 310, located on the third floor, then the telecommunications grounding busbar should be labeled as:

Accepted Answer

A)  TGB-310 
B)  TGB 
C)  TGB in TR 310 
D)  TGB in room 310 
E)  No need to identify as there is only one per TR

Question 16

In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no possibility of any increased bandwidth demands until they move to their planned future site. The building is not large, and the cable lengths will not exceed 550 m (1804 ft). Your recommendation for the fiber to be installed in the backbone is:

Accepted Answer

A)  OM1 fiber 
B)  OM2 fiber 
C)  OM3 fiber 
D)  OM1, OM2, or OM3 will work 
E)  OS1 equipped with attenuators

Question 17

A rapid increase in voltage with a duration of half a cycle best describes a(n):

Accepted Answer

A)  Swell 
B)  Overvoltage 
C)  Transient 
D)  Frequency variation

Question 18

Which of the following is NOT considered acceptable in an information technology system (ITS) conduit design and installation?

Accepted Answer

A)  Contains no continuous sections longer than 30 m (100 ft) 
B)  Bonded to ground on one or both ends in accordance with national or local code requirements 
C)  Will withstand the environment to which they were exposed 
D)  Uses flexible conduit to access wall outlets 
E)  Avoid routing conduit over or adjacent to heat sources

Question 19

Which of the following refers to the increase in the nominal voltage for a duration of 3600 cycles?

Accepted Answer

A)  Swell 
B)  Overvoltage 
C)  Transient 
D)  Sag

Question 20

There are three buildings approximately 400 meters apart and the customer wants to use 10 Gig Ethernet. What fiber should be specified for this application?

Accepted Answer

A)  8 - 9 micron singlemode 
B)  50 micron multimode 
C)  50 micron laser optimized multimode 
D)  62.5 micron multimode

Exam 1: BICSI Registered Communications Distribution Designer - RCDD