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Guide for DCDC-003.1: BICSI Data Center Design Consultant

Quiz DCDC-003.1: BICSI Data Center Design Consultant

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Quiz

1/10
Whatroomshouldhaveitsowndedicatedairhandlingsystemapartfromthecomputerroom?
A.ElectricalRoom
B.BreakRoom
C.PrinterRoom
D.StorageRoom
E.TelecommunicationsRoom
Select the answer
1 correct answer
The correct answer is C. Printer Room.

A printer room should have its own dedicated air-handling system, separate from the computer room. Printers can produce substantial heat and release paper dust and other particles. Separate ventilation helps remove that heat and contamination without circulating it through the computer room, where clean, stable conditions are important for equipment.

The other listed rooms may need ventilation or temperature control, but they are not the intended answer in this question.

Quiz

2/10
WhatistherecommendedamountoffuelsupplyneedingtobeavailabletoaclassF2datacenter?
A.12hours
B.18hours
C.24hours
D.30hours
E.36hours
Select the answer
1 correct answer

Quiz

3/10
WhatistheminimumsizeconductorfromtheTMGBtothebuildingmaingroundbus?
A.80mm(150MCM)barecopper
B.100mm(200MCM)barecopper
C.130mm(250MCM)barecopper
D.160mm(300MCM)barecopper
E.200mm(400MCM)barecopper
Select the answer
1 correct answer
The correct answer is C. 130 mm² (250 MCM) bare copper.

The conductor connecting the Telecommunications Main Grounding Busbar (TMGB) to the building’s main grounding bus must be at least 250 MCM, also written as 250 kcmil. This is approximately 127 mm², rounded to 130 mm² in the choices. The smaller options do not meet the stated minimum; the larger options would exceed it.

Quiz

4/10
Whatistheminimumdistancefromthebottomoftheaccessfloortothetopofthecabletray?
A.1inch
B.2inches
C.3inches
D.4inches
E.5inches
Select the answer
1 correct answer
The correct answer is B. 2 inches.

The minimum distance from the bottom of the access floor to the top of the cable tray is 2 inches. This clearance helps prevent the tray from contacting the floor and leaves room for installation and maintenance. The exact requirement can depend on the applicable project specifications or standard, but for this question, the required minimum is 2 inches.

Quiz

5/10
Whatisthedistancefromthebottomoftheaccessfloortothebottomofthecabletray?
A.6inches
B.7inches
C.8inches
D.9inches
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E.10inches
Select the answer
1 correct answer
The correct answer is C. 8 inches.

This is the clearance between the underside of the access floor and the underside of the cable tray. The specified distance is 8 inches, leaving space beneath the floor for cabling and access.

Quiz

6/10
Whatisthehighestallowableelevationforadatacentersite?
A.2,500ft
B.5,000ft
C.7,500ft
D.10,000ft
E.12,500ft
Select the answer
1 correct answer
The correct answer is D. 10,000 ft.

Under the criterion used in this question, a data-center site may be located at an elevation of up to 10,000 feet. This is a maximum allowable elevation, not necessarily the preferred elevation for every facility.

Elevation matters because air becomes less dense at higher altitudes. Less-dense air can reduce the effectiveness of air-based cooling and may affect the performance of equipment designed for lower elevations. A facility at a high altitude may therefore need equipment ratings, cooling systems, or other design choices that account for the site conditions.

The other options are below the stated maximum, so they do not identify the highest allowable elevation.

Quiz

7/10
Whereshouldtelecomcablingberoutedunderanaccessfloor?
A.Inthecoldaisle
B.Abovetheaccessfloor
C.Intheplenumspace
D.Intheequipmentroom
E.Intheofficearea
Select the answer
1 correct answer
The correct answer is A. In the arrangement assumed by this question, telecom cabling beneath an access floor is routed through the cold aisle. Keeping the cables in a designated aisle helps maintain an organized pathway and avoids routing them through the equipment area or unrelated spaces.

The other choices do not fit: B is above the access floor, not beneath it; C refers to a plenum space, typically an air-handling space; D names a room rather than a cable route; and E is an office area, not the designated underfloor pathway.

Quiz

8/10
Howdoyoucalculatethermalloadinadatacenter?
A.ITThermalOutput+CoolingSystem
B.ITThermalOutput+LightingSystem
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C.ITThermalOutput+PDUSystem
D.ITThermalOutput+CoolingSystem+LightingSystem
E.ITThermalOutput+CoolingSystem+LightingSystem+PDUSystem
Select the answer
1 correct answer
The correct answer is E: IT Thermal Output + Cooling System + Lighting System + PDU System.

A data center’s thermal load is the heat that the cooling system must remove from the area being cooled. In this simplified calculation, the total includes:

- IT thermal output: Heat produced by servers, storage, and networking equipment. Nearly all electrical power consumed by this equipment ultimately becomes heat.
- Cooling-system contribution: Heat generated by cooling-related equipment that is located within the area being cooled, such as fans or other components.
- Lighting-system contribution: Electrical power used by lights is largely converted into heat.
- PDU contribution: Power distribution units can generate heat through electrical losses, including transformer and distribution losses.

Adding these sources gives the total thermal load under the assumptions in the question. In an actual facility, the calculation depends on which equipment is inside the cooling boundary; equipment located outside the data center may not contribute directly to its room heat load. Additional sources, such as people or heat entering through walls and the building envelope, may also need to be considered.

Quiz

9/10
Howdoyoucalculatethethermalloadofthelightingsysteminsideadatacenter?
A.Ratedpower*.01
B.ITload*.01
C.Ratedpower*.02
D.ITload*.02
E.Ratedpower*.05
Select the answer
1 correct answer
The correct answer is C. Rated power × 0.02.

In this calculation, the lighting system’s thermal load is estimated as 2% of its rated power. The lighting equipment consumes electrical power, and most of that energy ultimately becomes heat inside the data center.

For example, if the rated power is 10,000 W, the estimated lighting thermal load is:

10,000 W × 0.02 = 200 W

The calculation uses the lighting system’s rated power, not the IT load. The 2% factor is the one specified for this estimate.

Quiz

10/10
Howmanyairchangesanhourinsideanequipmentroom?
A.0.25
B.0.50
C.1.00
D.1.50
E.2.00
Select the answer
1 correct answer
The correct answer is A. 0.25 air changes per hour.

An air-change rate describes how many times the room’s air volume is replaced by ventilation in one hour. At 0.25 air changes per hour, the equivalent of one full room volume of air is supplied or exhausted every four hours. The other choices represent higher ventilation rates.
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  • Quiz name:DCDC-003.1: BICSI Data Center Design Consultant
  • Total number of questions:160
  • Number of questions for the test:50
  • Pass score:80%

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