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Question 1

How many approaches are there to remove unwanted heat from an IT environment?

Options :

A : Four

B : Five

C : Six

D : Seven

Answer: B

Question 2

__________ represents the maximum power cable of being drawn by the equipment.

Options :

A : VA rating

B : Power rating

C : Star rating

D : Grade rating

Answer: B

Question 3

You have three UPS systems connected in parallel. The UPS systems have an imbalance in the load sharing of approximately 20%. What should you recommend?

Options :

A : Review the cable lengths of each UPS to the common busbar

B : Nothing, there is no reason for any concern

C : Review the common mode noise levels within the computer room

D : Review the harmonics levels within the computer room

Answer: A

Question 4

An air-conditioner unit needs to be selected. Two types are available: Unit-A has a Sensible Heat Ratio (SHR) of 0.7. Unit-B has a Sensible Heat Ratio (SHR) of 0.9. From an efficiency point of view, which one should be selected?

Options :

A : It does not matter, as the Sensible Heat Ratio has nothing to do with efficiency

B : Not relevant, as Sensible Heat Ratio is only specified for air-conditioner equipment to indicate the ratio between intake temperature and exhaust temperature.

C : Unit A

D : Unit B

Answer: D

Question 5

A computer room with a raised floor has been designed with racks in a hot/cold aisle setup. What should you recommend for the placement of down-flow air conditioners?

Options :

A : Air conditioners perpendicular to (at the end of the row of) the Cold-Aisle

B : Air conditioners perpendicular to (at the end of the row of) the Hot-Aisle

C : Air conditioners should always be placed at both sides of each row of racks

D : Air conditioner placement has no influence on cooling effectiveness and efficiency. Hence, they can be placed at any convenient location.

Answer: A