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4. What is the highest cost UPS configuration?
A. System + system
B. Parallel redundant
C. Isolated redundant
D. Distributed redundant
Answer: A
5. What is the difference between an undervoltage and a sag?
A. A sag lasts less time than an undervoltage condition.
B. A sag has less of a voltage drop than an undervoltage condition.
C. A sag is due to downstream loads and undervoltage is due to the power source.
D. A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.
Answer: A
6. What is required for the transfer of heat from one object to another?
A. A difference in airflow
B. A difference in volume
C. A difference in pressure
D. A difference in temperature
Answer: D
7. What does the CFD acronym stand for?
A. Certified Field Dichotomy
B. Circular Flow Determination
C. Computational Finite Deviation
D. Computational Fluid Dynamics
Answer: D
8. The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the
plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised
floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to
enter the rack.
This is an example of which type of air distribution system?
A. Flooded supply, fully ducted return
B. Locally ducted supply, flooded return
C. Flooded supply, locally ducted return
D. Fully ducted supply, fully ducted return
Answer: D
9. Cooling towers are a typical component of which heat rejection system?
A. Water cooled system
B. Glycol cooled system
C. Air cooled split system
D. Air cooled self-contained system
Answer: A
10. Which type of humidification system uses quartz lamps extended over an open pool of water to
release water vapor?
A. Infrared humidifier
B. Ultrasonic humidifier
C. Electromagnetic humidifier
D. Steam canister humidifier
Answer: A
11. What is an advantage of choosing a four-post open frame rack over a two-post open frame rack?
A. Lower cost
B. Smaller footprint
C. Easier assembly
D. Increased strength
Answer: D
4. What is the highest cost UPS configuration?
A. System + system
B. Parallel redundant
C. Isolated redundant
D. Distributed redundant
Answer: A
5. What is the difference between an undervoltage and a sag?
A. A sag lasts less time than an undervoltage condition.
B. A sag has less of a voltage drop than an undervoltage condition.
C. A sag is due to downstream loads and undervoltage is due to the power source.
D. A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.
Answer: A
6. What is required for the transfer of heat from one object to another?
A. A difference in airflow
B. A difference in volume
C. A difference in pressure
D. A difference in temperature
Answer: D
7. What does the CFD acronym stand for?
A. Certified Field Dichotomy
B. Circular Flow Determination
C. Computational Finite Deviation
D. Computational Fluid Dynamics
Answer: D
8. The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the
plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised
floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to
enter the rack.
This is an example of which type of air distribution system?
A. Flooded supply, fully ducted return
B. Locally ducted supply, flooded return
C. Flooded supply, locally ducted return
D. Fully ducted supply, fully ducted return
Answer: D
9. Cooling towers are a typical component of which heat rejection system?
A. Water cooled system
B. Glycol cooled system
C. Air cooled split system
D. Air cooled self-contained system
Answer: A
10. Which type of humidification system uses quartz lamps extended over an open pool of water to
release water vapor?
A. Infrared humidifier
B. Ultrasonic humidifier
C. Electromagnetic humidifier
D. Steam canister humidifier
Answer: A
11. What is an advantage of choosing a four-post open frame rack over a two-post open frame rack?
A. Lower cost
B. Smaller footprint
C. Easier assembly
D. Increased strength
Answer: D