Question 1

Which formula is correct?

Options :

A : Phase-to-Neutral Voltage = Phase-to-Phase voltage * 1.732

B : Phase-to-Neutral Voltage = Phase-to-Phase voltage .732

C : Phase-to-Neutral Voltage = Phase-to-Neutral voltage * 1.732

D : Phase-to-Neutral Voltage = (Phase-to-Phase voltage * 1.732) / Phase-to-Neutral Voltage

Answer: B

Question 2

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

Question 3

A computer room is fitted with a hypoxic-based fire suppression system. On what principle does it work?

Options :

A : It removes the heat from the fire

B : It lowers the oxygen levels in the room

C : It removes the fuel from the fire

D : It uses water as an extinguisher

Answer: B

Question 4

Do you need to consider blast protection when designing a data center?

Options :

A : No, there is no reason for implementing blast protection as nobody can predict the impact of a bomb explosion.

B : Yes, if the data center is a potential target or the building is located within the vicinity of (close by) a potential target.

C : No, blast protection is not a requirement of ANSI/TIA-942.

D : Yes, blast protection is a requirement of ANSI/TIA-942.

Answer: B

Question 5

What is the minimum requirement for power feeds to a Rated-4 data center (ANSI/TIA-942)?

Options :

A : Two feeds from two different substations, one power company not acceptable

B : Two feeds from two different substations, one power company acceptable

C : Two feeds from one substation

D : One feed split into two distribution boards

Answer: B

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