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2025 Annual Meeting - OFE Quiz Flashcards | StudBud
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2025 Annual Meeting - OFE Quiz
2025 Annual Meeting - OFE Quiz
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Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Key element of Meta’s design philosophy?
Scalability and energy efficiency
Limited automation for control
Exclusive use of cooling systems
Minimal redundancy to reduce costs
2
What design consideration is critical for busway power distribution in Meta data centers?
Compatibility with hydrogen fuel cells
Ability to replace circuit breakers entirely
Scalability and ease of future expansion
Increased resistance to electromagnetic interference
3
Which of the following is the primary function of a UPS
Store power in batteries to supply temporary backup power
Provide long-term power during an outage
Reduce the need for generators
Convert AC power to DC power for IT loads
4
What does voltage measure in an electrical system?
The electrical potential difference between two points
The resistance to electrical flow
The amount of current flowing
The power used by a device
5
What does "N+1 redundancy" mean?
Two independent power sources
No single point of failure
Power from renewable energy
One additional backup unit
6
Who is Meta's Capacity Delivery Lead for RMN
Lauren Snedeker
Brandon Seibert
Mark Gourley
Tim Lalla
7
Key benefit of an EPMS?
Helps identify power inefficiencies
Provides power to IT loads
Reduces number of PDUs
Eliminates circuit breakers
8
Purpose of a generator?
Converts AC to DC power
Stores extra power
Provides emergency power
Distributes power between racks
9
What is the primary difference between a CRAH and a CRAC unit?
CRAH is generally more energy efficient
CRAH cools larger space while CRAC is designed for smaller, contained areas
CRAH uses chilled water; CRAC uses direct expansion (DX) cooling
CRAC cools larger spaces
10
How does a heat exchanger work?
Generates chilled air
Increases humidity for cooling
Cools IT equipment directly
Transfers heat between fluids
11
What is a hyperscale data center?
Small localized data center
Built solely for backup
Supports massive compute resources
Exclusively uses renewable energy
12
Primary function of a chiller?
Circulates chilled water
Converts air into chilled water
Removes heat from system
Provides redundant cooling
13
Difference between switchboard and UPS?
Regulates vs. monitors
Stores vs. converts
Operates vs. runs
Distributes vs. backup
14
What is an ATS used for?
Monitors cooling efficiency
Synchronizes generator output
Automatically transfers loads
Manages internet traffic
15
What protection method is used in switchgear to prevent arc flash incidents?
Disconnecting all neutral grounding conductors
Arc-resistant enclosures and fast-acting relays
Increasing phase-to-ground voltage
Using liquid cooling instead of air cooling
16
Which unit is used to measure electrical current?
Amps
Ohms
Watts
Volts
17
Difference between switchboard and UPS?
Switchboard regulates voltage
Switchboard stores energy
Switchboard operates during outages
Switchboard distributes power
18
Which electrical distribution system does Meta typically use for its Data Hall line ups?
120V single-phase
208V single-phase
400/230V three-phase
480/277V three-phase
19
What does the term “watt” represent in electrical systems?
The unit of electrical power
Voltage divided by resistance
A type of electrical resistance
How fast current flows
20
What does resistance do in an electrical circuit?
Speeds up the flow of current
Reduces or opposes the flow of current
Measures the energy consumed
Converts electricity to voltage
21
What does "redundancy" mean in a data center electrical system?
Installing more servers than needed
Reducing power consumption during peak hours
Using backup systems to prevent downtime
Powering off equipment when not in use
22
Role of an EPMS?
Provides power to backup loads
Controls cooling fan speed
Converts AC to DC power
Tracks real-time power usage
23
Primary function of a data center?
Manufacture computer hardware
Develop software applications
Store and manage information
Provide customer IT support
24
Reason for using 480/277V?
Reduces power conversion losses
Increases server speed
Improves compatibility with equipment
Easier generator synchronization
25
What does UPS stand for?
Universal Power Source
Uninterrupted Power Supply
Utility Power Station
Unified Power System
26
Primary role of PDUs?
Monitor cooling efficiency
Convert DC to AC power
Alternative to UPS systems
Manage and distribute power
27
What is the correct relationship between voltage, current, and power?
Power = Voltage ÷ Resistance
Power = Voltage × Resistance
Power = Voltage × Current
Power = Current ÷ Voltage
28
What does PUE (Power Usage Effectiveness) measure in a data center?
The absolute amount of renewable energy used
The efficiency of the cooling system only
The speed of data processing
The ratio of total facility power to IT equipment power
29
Common certification for data center?
ISO 9001
OSHA Compliance
LEED Certification
FCC Certification
30
Why is energy efficiency critical?
Allows more storage capacity
Reduces operational costs
Improves visual design
Increases processing speed
