Exin Exam CDCS Topic 2 Question 12 Discussion

Actual exam question for Exin's CDCS exam

Question #: 12
Topic #: 2

[All CDCS Questions]

What mainly affects the cooling capacity of a raised floor tile?

AType of ICT equipment, location of the air conditioner, pressure under the raised floor, allowable temperature in the hot aisle

BRelative humidity in the computer room, temperature of the cold air, pressure under the raised floor, construction material of the tile

CPercentage of the surface opening, obstruction of the supporting construction, pressure under the raised floor, damper construction

DPercentage of the surface opening, airflow direction of the ICT equipment, temperature difference between the air intake and air exhaust of the ICT equipment, construction material of the tile

Show Suggested Answer

Suggested Answer: C

The cooling capacity of a raised floor tile is primarily influenced by the percentage of surface opening, the obstruction caused by the supporting construction, the pressure under the raised floor, and the damper construction. These factors dictate how much airflow can pass through the tile and how effectively cool air is distributed to the equipment in the data center.

Detailed Explanation:

The percentage of surface opening on a floor tile affects how much air can flow through, with larger openings allowing more airflow. Supporting structures beneath the floor can obstruct airflow, reducing cooling efficiency. Pressure under the raised floor impacts the velocity and volume of air that moves through the tile. Additionally, if dampers are installed, they control the airflow rate, which can be adjusted to meet specific cooling needs for the area.

EPI Data Center Specialist References:

EPI guidance on airflow management under raised floors emphasizes these factors as critical for effective cooling, especially in high-density areas. Ensuring unobstructed and adequate airflow helps maintain consistent cooling across equipment.

by Salena at Mar 09, 2025, 01:13 PM

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Ashley

2 days ago

I disagree, B seems more relevant with humidity and temperature.

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Oretha

8 days ago

Definitely think it's A! Those factors are crucial.

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Tommy

13 days ago

I’m a bit confused about the construction material of the tile—does it really affect cooling capacity? I thought it was more about airflow and pressure.

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Suzi

19 days ago

I practiced a similar question before, and I think the type of ICT equipment plays a big role, so maybe option A is the right choice?

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Rodrigo

24 days ago

I remember studying airflow dynamics, and I feel like the percentage of surface opening is crucial, but I can't recall if it was in option C or D.

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Leigha

1 month ago

I think the cooling capacity is really influenced by the pressure under the raised floor, but I'm not sure which option emphasizes that the most.

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Domingo

1 month ago

I'm a bit confused on this one. There are a lot of variables to consider, like relative humidity, airflow direction, and damper construction. I'll need to think it through step-by-step.

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King

1 month ago

Ah, I remember learning about this in class. The type of ICT equipment, location of the air conditioner, and allowable temperature in the hot aisle are the main things that impact the cooling capacity.

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Sabina

1 month ago

Okay, I think I've got this. The percentage of surface opening, pressure under the raised floor, and construction material of the tile are likely the main factors affecting cooling capacity.

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Lashaun

1 month ago

Hmm, I'm a bit unsure about this one. I'll need to review my notes on raised floor design and cooling systems to figure out the key factors.

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Yvonne

1 month ago

This seems like a tricky question. I'll need to think carefully about the factors that affect cooling capacity of a raised floor tile.

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Antonio

7 months ago

Option E: The cooling capacity is directly proportional to the number of cat videos played on the servers. Everyone knows that.

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Pete

7 months ago

Ah, the age-old debate of raised floor cooling capacity. Option A seems like a classic trick question - the location of the air conditioner? Really? What is this, a magic show?

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Ailene

7 months ago

Hmm, this is a tough one. I'm torn between options B and D. Relative humidity and construction material could play a role, but the airflow direction of the ICT equipment is a wild card.

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Bette

7 months ago

I'd go with option C. The pressure under the raised floor and the damper construction are definitely important in determining the cooling capacity.

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Evelynn

6 months ago

User 3: Agreed, those factors can really affect the cooling capacity.

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Glenn

6 months ago

User 2: Yeah, the pressure under the raised floor and damper construction are key factors.

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Nelida

7 months ago

User 1: I think option C is the best choice.

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Annmarie

8 months ago

Yeah, that makes sense. It's a combination of factors.

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Stephania

8 months ago

I think the construction material of the tile plays a role too.

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Jonell

8 months ago

But what about the pressure under the raised floor?

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Sabina

8 months ago

Option D seems the most comprehensive. The percentage of the surface opening and the temperature difference between the air intake and exhaust are crucial factors for cooling capacity.

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