What is a potential disadvantage of using a hypoxic-based fire suppression system as a fire extinguishing system?

• A.It can only be used in computer rooms which have sufficient air changes per hour.
• B.The gas containers need to be close to the hazard area.
• C.It can only be used in non-continuous occupied areas.
• D.It can only be used in computer rooms where you have sufficient positive pressure.

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When installing a raised floor, can we use a spirit level bar to level the floor?

• A.Yes, spirit level bars can be used as long as their length is longer than 60 cm/2 ft (the size of a typical raised floor tile).
• B.No, because using a spirit level bar, a measurement error will be transferred from pedestal to pedestal.
• C.Yes, but spirit level bars can only be used in the vertical plane.
• D.Yes, using a spirit level bar for raised floors higher than 40 cm is preferred.

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Which class of UPS is ideal for data centers?

• A.VFD (Voltage and Frequency Dependent)
• B.VI (Voltage Independent)
• C.VFI (Voltage and Frequency Independent)
• D.First class

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A data center requires an audit to find out whether it conforms with ANSI/TIA-942 Rated-3 (concurrently maintainable).
Will the network architecture be part of this audit?

• A.No, as concurrently maintainable only applies to electrical and mechanical (power and cooling).
• B.Yes, but only if the network administration does not comply with ANSI/TIA-606.
• C.Yes, amongst other aspects, the network architecture should be Rated-3 compliant with the requirements of ANSI/TIA-942.
• D.No, only the type of cabling used will be audited.

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A battery bank has 800 Ah total capacity. How much charging current should the rectifier be able to supply?

• A.40 A
• B.60 A
• C.80 A
• D.160 A

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