CSA Facility Operations & Maintenance 3

Question 1

Which type of UPS topology provides the highest level of power protection by always running equipment off the inverter?

Accepted Answer

Double-conversion (online) UPS

Answer

Double-conversion UPS always powers the load through the inverter, completely isolating equipment from power anomalies.

Question 2

A facility administrator needs to track all maintenance activities and asset repair history. Which system is best suited for this?

Accepted Answer

CMMS (Computerized Maintenance Management System)

Answer

A CMMS is specifically designed to manage maintenance work orders, schedules, and asset histories.

Question 3

What is the function of a PDU (Power Distribution Unit) in a server room?

Accepted Answer

Distribute electrical power from a source to multiple devices

Answer

A PDU distributes electrical power from a single source (like a UPS output) to multiple servers or devices in a rack.

Question 4

When performing a lockout/tagout (LOTO) procedure, what is the correct sequence for re-energizing equipment after maintenance?

Accepted Answer

Notify affected personnel → remove lockout devices → restore energy

Answer

OSHA LOTO procedures require notifying all affected personnel before removing devices, then restoring energy safely.

Question 5

What metric does Power Usage Effectiveness (PUE) measure in a data center?

Accepted Answer

Ratio of total facility power to IT equipment power

Answer

PUE = Total Facility Power / IT Equipment Power; a PUE of 1.0 is ideal, meaning all power goes to IT equipment.

(CSA) Certified System Administrator Practice Test